Abrégé

233); and 30-70 vol% of magnesia (MgO), and having plasma resistance. The plasma etching apparatus component for manufacturing a semiconductor, provided in an aspect of the present invention, has excellent corrosion resistance to plasma, and can have good corrosion resistance to plasma even when the composite sintered body is sintered at relatively low relative density. In addition, the grain size of the composite sintered body is small, and the increase in surface roughness after etching is small, and thus there is the effect that contaminant particles can be reduced. Moreover, compared to existing plasma-resistant materials, the composite sintered body has excellent strength and is inexpensive, and thus is excellent in terms of economic efficiency and applicability.

Classes IPC  ?

• H01L 21/67 - Appareils spécialement adaptés pour la manipulation des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide pendant leur fabrication ou leur traitementAppareils spécialement adaptés pour la manipulation des plaquettes pendant la fabrication ou le traitement des dispositifs à semi-conducteurs ou des dispositifs électriques à l'état solide ou de leurs composants
• H01L 21/3065 - Gravure par plasmaGravure au moyen d'ions réactifs
• C04B 35/505 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base de composés de terres rares à base d'oxyde d'yttrium
• C04B 35/04 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxyde de magnésium, d'oxyde de calcium ou de mélanges d'oxydes dérivés de la dolomite à base d'oxyde de magnésium
• H01J 37/32 - Tubes à décharge en atmosphère gazeuse

Abrégé

The present invention relates to a method for manufacturing a support for regenerating core-shell structured hard tissue and a support for regenerating core-shell structured hard tissue manufactured thereby, wherein the support may further comprise bio-functional materials, such as cells, in a core-shell structure. The method for manufacturing a support for regenerating core-shell structured hard tissue according to the present invention has an effect of manufacturing a support for regenerating core-shell structured hard tissue by a method by which a 3-dimensional structure is prepared by a layer manufacturing process through an extrusion container having a double nozzle. In addition, the support can be manufactured at room temperature, thereby having an effect of containing cells or various bio-functional materials. Furthermore, the support for regenerating core-shell structured hard tissue has a similar constitution to a bone component and thus has higher mechanical properties, and has an effect that the cells or various bio-functional materials are uniformly distributed throughout the entire 3-dimensional structure.

Classes IPC  ?

• A61L 27/56 - Matériaux poreux ou cellulaires
• A61L 27/12 - Matériaux contenant du phosphore, p. ex. apatite
• A61L 27/54 - Matériaux biologiquement actifs, p. ex. substances thérapeutiques
• A61L 27/34 - Matériaux macromoléculaires
• A61L 27/30 - Matériaux inorganiques
• A61L 27/38 - Cellules animales
• A61L 27/52 - Hydrogels ou hydrocolloïdes

Abrégé

The present invention relates to a support for hard tissue regeneration containing an active ingredient for osteoporosis treatment, and a method for preparing the same. The support for hard tissue regeneration according to the present invention causes less concern about side effects by using a polyphenol-based naturally derived material instead of a bisphosphonate-based drug, which is a therapeutic agent for osteoporosis; and has an effect of releasing osteogenic active ingredients in a sustained release manner for a long period of time by uniformly introducing, into the support at room temperature, quercetein or genistein, which is expected to improve the bone regeneration efficacy of the support by simultaneously promoting osteoblast behavior and inhibiting osteoclast behavior.

Classes IPC  ?

• A61L 27/56 - Matériaux poreux ou cellulaires
• A61L 27/54 - Matériaux biologiquement actifs, p. ex. substances thérapeutiques
• A61K 31/352 - Composés hétérocycliques ayant l'oxygène comme seul hétéro-atome d'un cycle, p. ex. fungichromine ayant des cycles à six chaînons avec un oxygène comme seul hétéro-atome d'un cycle condensés avec des carbocycles, p. ex. cannabinols, méthanthéline
• A61L 27/12 - Matériaux contenant du phosphore, p. ex. apatite
• A61P 19/10 - Médicaments pour le traitement des troubles du squelette des maladies osseuses, p. ex. rachitisme, maladie de Paget de l'ostéoporose

Abrégé

c3 transformation temperatures; and cooling the material to a second temperature ranging from Mf to Ms based on a martensite start temperature (Ms) and a martensite finish temperature (Mf), and performing a second heat treatment, in which the material is maintained at the second temperature for a predetermined period of time.

Classes IPC  ?

• C21D 9/08 - Traitement thermique, p. ex. recuit, durcissement, trempe ou revenu, adapté à des objets particuliersFours à cet effet pour corps tubulaires ou tuyaux
• C22C 38/06 - Alliages ferreux, p. ex. aciers alliés contenant de l'aluminium
• C22C 38/04 - Alliages ferreux, p. ex. aciers alliés contenant du manganèse
• C22C 38/02 - Alliages ferreux, p. ex. aciers alliés contenant du silicium
• C21D 6/00 - Traitement thermique des alliages ferreux
• C21D 8/06 - Modification des propriétés physiques par déformation en combinaison avec, ou suivie par, un traitement thermique pendant la fabrication de barres ou de fils

Abrégé

Disclosed are an apparatus and method for manufacturing fine powder by using a mixed gas spray. A melting chamber melts a raw material, a formed raw material solvent is supplied, a mixed gas spraying device sprays a mixed gas of a gas and a solid powder onto the raw material solvent supplied from the melting chamber, and a raw material powder is formed thereby. A holding chamber is formed at the bottom of the melting chamber and holds the raw material powder, a screen is formed at the bottom of the holding chamber and filters raw material powder of a size greater than a determined size from the raw material powder, and a collecting chamber is formed at the bottom of the screen and collects finished fine raw material powder that has passed through the screen. Also, fine raw material powder is collected through a collecting chamber and a cyclone at the bottom of the melting chamber. In addition, with respect to the mixed gas spraying device, a mixed gas spraying cell generates a mixed gas in which the gas and the solid powder are mixed and sprays the mixed gas at the raw material solvent. Further, a gas heating cell supplies heated gas to the mixed gas spraying cell, and a solid powder heating cell supplies heated solid powder to the mixed gas spraying cell. Moreover, a gas storage stores gas to be supplied to the gas heating cell, and a solid powder storage stores solid powder to be supplied to the metal powder heating cell.

Classes IPC  ?

• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés

Abrégé

The present invention relates to a method for manufacturing a support for regenerating core-shell structured hard tissue and a support for regenerating core-shell structured hard tissue manufactured thereby, wherein the support may further comprise bio-functional materials, such as cells, in a core-shell structure. The method for manufacturing a support for regenerating core-shell structured hard tissue according to the present invention has an effect of manufacturing a support for regenerating core-shell structured hard tissue by a method by which a three-dimensional structure is prepared by a layer manufacturing method through an extrusion container having a double nozzle. In addition, the support can be manufactured at room temperature, thereby having an effect of containing cells or various bio-functional materials. Further, the support for regenerating core-shell structured hard tissue has a similar constitution to a bone component and thus has higher mechanical properties, and has an effect in which the cells or various bio-functional materials are uniformly distributed throughout the entire three-dimensional structure.

Classes IPC  ?

• A61L 27/56 - Matériaux poreux ou cellulaires

Abrégé

The present invention relates to a method for manufacturing an aluminum-zinc-magnesium-copper alloy plate member having refined crystal grains and, more particularly, the present invention provides a method for manufacturing an aluminum-zinc-magnesium-copper alloy plate member, the method comprising the steps of: manufacturing an aluminum alloy plate member using a molten aluminum-zinc-magnesium-copper alloy through twin-roll thin-plate casting (first step); primarily rolling the aluminum alloy plate member manufactured in the first step (second step); cold-rolling the aluminum alloy plate member manufactured in the second step (third step); and heat-treating the aluminum alloy plate member manufactured in the third step (fourth step). The present invention can reduce the process time and costs by using a twin-roll casting process. In addition, a plate member manufactured by the twin-roll casting is successively hot-rolled and cold-rolled and then heat-treated such that refinement and homogenization of crystal grains of the plate member is maximized, thereby improving the elongation.

Classes IPC  ?

• B21B 1/46 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer du métal immédiatement après la coulée continue
• B21B 1/28 - Méthodes de laminage ou laminoirs pour la fabrication des produits semi-finis de section pleine ou de profilésSéquence des opérations dans les trains de laminoirsInstallation d'une usine de laminage, p. ex. groupement de cagesSuccession des passes ou des alternances de passes pour laminer des bandes ou des feuilles en longueurs indéfinies selon un processus continu par laminage à froid
• C22C 21/10 - Alliages à base d'aluminium avec le zinc comme second constituant majeur
• B22D 11/06 - Coulée continue des métaux, c.-à-d. en longueur indéfinie dans des moules dont les parois se déplacent, p. ex. entre des rouleaux, des plaques, des courroies, des chenilles

Abrégé

A resonance generating device for testing fatigue of a blade that maximizes a moving mass ratio according to the present invention comprises: a mounting means; a resonance generating means; and weights. The mounting means comprises a mounting part having a mounting groove with a shape corresponding to the outer surface of the blade; and a coupling part located at the outside of the mounting part and coupled by a coupling member so that the mounting part pressurizes the blade. The resonance generating means comprises: an actuator generating a linear movement; a weight frame, provided at the outside of the mounting means, for receiving a body and a load of the actuator therein, and having a closed-loop shape for improving structural stiffness to interlock with a displacement of the load of the actuator, thereby performing a linear reciprocating motion; and a linear guider for guiding the linear reciprocating motion of the weight frame when the position of the load of the actuator is changed. The weights are mounted on the opposite surfaces of the weight frame to interlock with the weight frame and can increase and decrease in the longitudinal direction of the blade so that the center of gravity of the moving mass can be located in the load when the weight frame performs the linear reciprocating motion. A method of testing fatigue using the resonance generating device for testing fatigue of a blade according to the present invention comprises: a mounting means installation step for installing a mounting means at a blade which is an element of a resonance generating device for testing fatigue of a blade, the mounting means comprising a mounting part having a mounting groove with a shape corresponding to the outer surface of the blade, and a coupling part located at the outside of the mounting part and coupled by a coupling member so that the mounting part pressurizes the blade; a resonance generating means installation step for installing a resonance generating means at one side of the mounting means, the resonance generating means comprising an actuator generating a linear movement, a weight frame provided at the outside of the mounting means for receiving a body and a load of the actuator therein and having a closed-loop shape for improving structural stiffness to interlock with a displacement of the load of the actuator, thereby performing a linear reciprocating motion, and a linear guider for guiding the linear reciprocating motion of the weight frame when the position of the load of the actuator is changed; a weight installing step for installing weights at one side of the resonance generating means, the weights being mounted on the opposite surface of the weight frame to interlock with the weight frame and being capable of increasing and decreasing in the longitudinal direction of the blade so that the center of gravity of the moving mass can be located in the load when the weight frame performs the linear reciprocating motion; and a resonance generating step for generating resonance in the blade by allowing the load of the actuator to be interlocked with the weight frame and the weights by means of a linear reciprocating motion.

Classes IPC  ?

• G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
• G01M 7/02 - Test de vibration

Abrégé

A resonance generating apparatus for testing blade fatigue with reduced side load includes a mounting portion comprising a saddle including a groove corresponding in form to an external surface of a blade, and an assembling portion positioned on an external side of the saddle and joined by tightening members so that the saddle presses against the blade, a resonance generator including an actuator configured to generate a linear movement, a coupler or couplers configured to maintain phase of a blade motion the same as an actuator rod, and a linear guide configured to guide a direction of linear reciprocating motion of an actuator body, and additional weights mounted on two opposite faces of the actuator body to move in association therewith, and added or reduced in a lengthwise direction of the blade so that a center of gravity of moving masses of the actuator body in linear reciprocation including the actuator body and the additional weights is positioned on an axis of the actuator rod.

Classes IPC  ?

• G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
• G01M 7/02 - Test de vibration

Abrégé

The present invention relates to a production method for magnesium alloy using a grain refiner, and to a magnesium alloy produced in accordance therewith. More specifically, the present invention relates to a production method for magnesium alloy comprising: a step (step 1) of producing an aluminium master alloy by adding a carbonate based powder to an aluminium melt; and a step (step 2) of producing a magnesium alloy by adding the aluminium master alloy produced in step 1 to a magnesium melt; and relates to a production method for magnesium alloy comprising: a step (step 1) of producing an aluminium master alloy by mixing a carbonate based powder and aluminium (Al) metal chips and adding the mixture to an aluminium melt; and a step (step 2) of producing a magnesium alloy by adding the aluminium master alloy produced in step 1 to a magnesium melt; and also relates to a magnesium alloy produced in accordance therewith.

Classes IPC  ?

• C22C 1/03 - Fabrication des alliages non ferreux par fusion utilisant des alliages-mères
• C22C 23/00 - Alliages à base de magnésium

Abrégé

The present invention relates to a selective adsorption of organic materials by using magnetic hybrid nanoparticles, and specifically, to: a magnetic oil adsorbent, wherein magnetic metal particles, and one or more materials selected from a carbon nanotube and polydimethylsiloxane (PDMS) are sequentially coated on the surface of silica nanoparticles; and a method for removing oil using the same. The magnetic oil adsorbent of the present invention has remarkable adsorptivity to oil, and an oil-silica gel gelated after oil adsorption is magnetic so as to be easily collected using a magnetic body, and thus it is possible to selectively remove oil only from oil-containing media.

Classes IPC  ?

• B01J 20/283 - Absorbants ou adsorbants poreux à base de silice
• B01J 20/10 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance inorganique contenant de la silice ou un silicate
• B01J 20/26 - Composés macromoléculaires synthétiques

Abrégé

The present invention relates to a method for manufacturing an extruded magnesium alloy and an extruded magnesium alloy manufactured thereby. The present invention specifically relates to a method for manufacturing an extruded magnesium alloy which comprises a step (first step) of melting a starting material of a magnesium alloy; a step (second step) of casting the magnesium alloy starting material melted in the first step in order to prepare a magnesium alloy billet; a step (third step) of subjecting the magnesium alloy billet prepared in the second step to a homogenization treatment; a step (fourth step) of allowing the magnesium alloy billet homogenized in the third step to undergo compressive strain in the range of 3 to 20%; and a step (fifth step) of extruding the magnesium alloy billet which underwent compressive strain in the fourth step; and an extruded magnesium alloy manufactured thereby.

Classes IPC  ?

• C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages
• B22D 21/04 - Coulée d'aluminium ou de magnésium
• B21C 23/00 - Extrusion des métauxExtrusion par percussion

Abrégé

An air resistance reduction device for a fatigue test for a blade, according to one embodiment of the present invention, comprises an air resistance reduction means which has a closed-loop cross sectional shape so as to accommodate a wind power blade therein, and maintains a separated state from both sides of the window power blade so as to reduce air resistance generated during a fatigue test, wherein the inside of the air resistance reduction means is provided with a support part for forming a filling space such that a portion of the outside of the air resistance reduction means forms a curved surface. A method for installing the air resistance reduction device for a fatigue test for a blade, according to one embodiment of the present invention, comprises: a preparation step of preparing an air resistance reduction means which has a closed-loop cross sectional shape, and which is provided with a support part having a filling space in which a fluid including gas is filled; an installation step of installing the air resistance reduction means on an outer side of a blade; and a completion step of forming a pair of curved portions which have curved surfaces and are separated from both sides of the blade by filling the filling space with the fluid, and forming a plane portion having a plane between the pair of curved portions.

Classes IPC  ?

• G01N 3/32 - Recherche des propriétés mécaniques des matériaux solides par application d'une contrainte mécanique en appliquant des efforts répétés ou pulsatoires
• F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes
• G01M 5/00 - Examen de l'élasticité des structures ou ouvrages, p. ex. fléchissement de ponts ou d'ailes d'avions

Abrégé

The present invention relates to a core-shell structured nanocomposite comprising fullerene particles, a preparation method thereof, and a solar cell comprising the core-shell structured nanocomposite, and more specifically, provides a core-shell structured nanocomposite comprising fullerene, comprising a metal nanoparticle core and a metal oxide shell, wherein the metal oxide shell of the nanocomosite comprises fullerene particles. According to the present invention, the nanocomposite is applied to a photoactive layer of a solar cell to amplify the indicent light, thereby improving the light absorption of an organic material, and can consequently enhance the light conversion rate. In addition, electron confinement in which electrons are confined in metal of a core portion is prevented by the fullerene particles contained in a shell portion, thereby improving electrical conductivity.

Classes IPC  ?

• H01L 51/44 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement en énergie électrique, soit comme dispositifs de commande de l'énergie électrique par ledit rayonnement - Détails des dispositifs
• H01L 51/46 - Emploi de matériaux spécifiés

Abrégé

The present invention relates to a method of manufacturing a flexible substrate having a metal wiring by using plasma and a flexible substrate manufactured by using the method, and in particular, to a method of manufacturing a flexible substrate having a metal wiring by using plasma, which includes: pre-processing a substrate by irradiating plasma to the surface of the substrate (step 1); forming a metal wiring on the substrate pre-processed in step 1 (step 2); coating and curing a polymer on the substrate on which the metal wiring is formed in step 2, to manufacture a polymer layer in which the metal wiring is buried (step 3); and separating the polymer layer manufactured in step 3 from the substrate of step 1 (step 4). The method of manufacturing a flexible substrate having a metal wiring by using plasma according to the present invention may insert the metal wiring into the flexible substrate and form a low resistance wiring without restrictions on the height of the metal wiring. Moreover, it is possible to easily separate from the substrate the flexible substrate in which the metal wiring is buried, by performing plasma processing on the surface of the substrate. Furthermore, it is possible to remove impurities from the surface of the substrate through the plasma processing and it is possible to easily remove from the substrate the flexible substrate in which the metal wiring is buried, by applying physical force, without using a separate process.

Classes IPC  ?

• H05K 1/02 - Circuits imprimés Détails
• H05K 3/20 - Appareils ou procédés pour la fabrication de circuits imprimés dans lesquels le matériau conducteur est appliqué au support isolant de manière à former le parcours conducteur recherché par apposition d'un parcours conducteur préfabriqué
• H05K 3/46 - Fabrication de circuits multi-couches

Abrégé

The purpose of the present invention is to provide a grain refiner and a refinement method for a magnesium alloy, a preparation method for a magnesium alloy using the same, and a magnesium alloy prepared thereby. To this end, the present invention provides a grain refinement method for a magnesium alloy and a preparation method for a magnesium alloy, the grain refinement method comprising the steps of: (step 1) coating a magnesium alloy with a protection gas, and heating and melting the same to the melting temperature of the magnesium alloy to prepare a molten magnesium alloy; adding the grain refiner for a magnesium alloy prepared by the present invention to the molten magnesium alloy prepared in step 1; and casting the molten magnesium alloy of step 2 to form a magnesium alloy cast with fine grains. According to the present invention, instead of adding a refiner having a single composition as in a conventional method, multiple types of powders showing refinement effects of different reactivities are prepared into a powder-, pellet-, rod- or wire-shape while controlling the density and mixing ratio thereof so as to be injected, thereby inducing heterogeneous nucleus generation and controlling the reactivity with a molten metal so as to maximize the refinement of a magnesium alloy, minimize the reaction concentration at an upper portion of a molten metal, and further obtain a stirring effect of the decomposition of a carbonate powder.

Classes IPC  ?

• C22C 1/05 - Mélanges de poudre métallique et de poudre non métallique
• C22C 23/00 - Alliages à base de magnésium

Abrégé

The present invention relates to a method for improving the mouldability of a magnesium-alloy sheet material, and to a magnesium-alloy sheet material produced thereby. The method for improving the mouldability of magnesium-alloy sheet material which is provided comprises the steps of: forming {10-12} bicrystals in the magnesium-alloy sheet material (step 1); and subjecting the magnesium-alloy sheet material of step 1 to an annealing heat treatment (step 2). Also, the magnesium-alloy sheet material which is provided comprises {10-12} bicrystals produced by means of the method. The method for improving the mouldability of a magnesium-alloy sheet material according to the present invention has the advantages that it is possible to artificially form {10-12} bicrystals in the magnesium alloy without any increase in electrical potential since compression deformation is applied to the magnesium-alloy sheet material in a direction parallel to the basal plane of the structure possessed by the sheet material, and also that it is possible to improve the mouldability of magnesium-alloy sheet materials at room temperature and when hot since the bicrystals easily absorb deformation that occurs during moulding through annihilation.

Classes IPC  ?

• C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages
• C22C 23/00 - Alliages à base de magnésium

Abrégé

The present invention relates to a magnesium alloy having high ductility and high toughness, and a preparation method thereof, and more specifically, to: a magnesium alloy having high ductility and high toughness, comprising 1.0-3.5 wt% of tin (Sn), 0.05-3.0 wt% of zinc (Zn), and the balance of magnesium and inevitable impurities; and a preparation method thereof. According to the present invention, the magnesium alloy is prepared by adding zinc, and optionally, one or more elements selected from aluminum, manganese and rare earth elements in a specific content ratio to a magnesium alloy capable of precipitation strengthening containing a small amount of tin so as to form a small amount of fine precipitates, thereby simultaneously minimizing a decrease in ductility of a material due to excessive precipitates and strengthening precipitation. Therefore, the magnesium alloy has prominent ductility and toughness compared with an extrusion material prepared from a conventional commercial magnesium alloy, and thus can be applied to a whole industry such as transportation equipment and the like.

Classes IPC  ?

• C22C 23/00 - Alliages à base de magnésium
• C22C 23/04 - Alliages à base de magnésium avec le zinc ou le cadmium comme seconds constituants majeurs
• C22C 23/06 - Alliages à base de magnésium avec un métal du groupe des terres rares comme second constituant majeur
• B22D 21/04 - Coulée d'aluminium ou de magnésium

Abrégé

The present invention relates to high-performance high-nitrogen duplex stainless steels excellent in pitting corrosion resistance. More particularly, the present invention provides duplex stainless steels having a ferrite-austenite phase, the duplex stainless steels comprising 16.5 to 19.5 % by weight of chrome (Cr), 2.5 to 3.5 % by weight of molybdenum (Mo), 1.0 to 5.5 % by weight of tungsten (W), 5.5 to 7.0 % by weight of manganese (Mn), 0.35 to 0.45 % by weight of nitrogen (N), a remainder being Fe. The high-performance high-nitrogen duplex stainless steels excellent in pitting corrosion resistance according to the present invention exclude or reduce the use of nickel (Ni) which may cause price instability of steels and environmental burden, and the high-performance high-nitrogen duplex stainless steels of the present invention replace nickel with manganese (Mn) and nitrogen (N), thus improving economic advantages, price stability and eco-friendliness of the steels.

Classes IPC  ?

• C22C 38/00 - Alliages ferreux, p. ex. aciers alliés
• C22C 38/22 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du molybdène ou du tungstène
• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène
• C22C 38/58 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et plus de 1,5% en poids de manganèse

Abrégé

The present invention relates to an aluminum precursor ink for a wet process, and to a method for manufacturing same, and more particularly, provided are an aluminum precursor ink including an aluminum precursor in an organometallic form and a solvent. According to the aluminum precursor ink for a wet process and the method for manufacturing same of the present invention, an aluminum precursor ink can be provided which is stable and is not subject to aluminum precursor deposition and precipitation for at least 30 days, and by using the aluminum precursor ink according to the present invention, a patterned aluminum film can be formed in a certain shape on a non-flexible substrate, such as soda lime glass, without any heat damage in a low temperature processing atmosphere of 150°C or below, and on a flexible substrate such as polyethylene, polyimide, or paper. The patterned aluminum film can be applied to electric circuit substrates having various functions, and can be used in the manufacture of electrodes for environmental/energy devices that require ohmic contact, such as solar cells and OLEDs.

Classes IPC  ?

• C09D 11/00 - Encres
• C09D 5/24 - Peintures électriquement conductrices
• H01B 5/14 - Conducteurs ou corps conducteurs non isolés caractérisés par la forme comprenant des couches ou pellicules conductrices sur supports isolants
• H01L 31/042 - Modules PV ou matrices de cellules PV individuelles

Abrégé

A plasma reaction apparatus and method applied to reformation of fuel by generating and using rotating arc plasma in a furnace, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst. A raw material for a reaction is allowed to flow into the furnace through a hole, causing it to flow within the furnace in a continuous swirl. Furthermore, an expanded plasma reaction zone is provided by a wide area chamber which is formed on an upper part of the furnace and has a greater width than that of a lower part of the furnace, and thus a plasma being generated can be expanded by the expanded plasma zone and delayed from flowing out of the furnace by corners of the wide area chamber that is spaced from a plasma inducing electrode therein.

Classes IPC  ?

• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage

Abrégé

The present invention relates to a method for molding a magnesium plate having high strength due to a local softening process using quick heating, and to a high-strength magnesium plate molded thereby. More particularly, the present invention relates to the method for molding the magnesium plate through the local softening process, the method comprising: a local softening step (step 1) of performing a heat treatment on only a portion which requires molding within a high-strength magnesium plate so as to locally improve elongation; and a molding step (step 2) of molding the magnesium plate which is locally softened in step 1. The present invention also relates to the magnesium plate molded using the molding method. According to the present invention, the method for molding the magnesium plate through the local softening process and the high-strength magnesium plate molded by the method enable local heating to be selectively performed on only a portion which requires molding so as to improve elongation. The portion which does not require processing and thus has to maintain a high strength is not heated or is only minimally heated so as to enable the portion which does not require processing to maintain the initial mechanical characteristics that the portion has before the molding is performed.

Classes IPC  ?

• C22F 1/06 - Modification de la structure physique des métaux ou alliages non ferreux par traitement thermique ou par travail à chaud ou à froid du magnésium ou de ses alliages
• B21D 22/02 - Estampage utilisant des dispositifs ou outils rigides
• B21D 37/16 - Chauffage ou refroidissement
• C21D 1/34 - Méthodes de chauffage

Abrégé

The present invention relates to a method for manufacturing a flexible substrate having metal wiring embedded therein and to a flexible substrate manufactured by the method. More particularly, the present invention relates to a method for manufacturing a flexible substrate having metal wiring embedded therein, wherein the method comprises: a step (step 1) of coating a substrate with a sacrificial layer made of polymers which are soluble in water or in an organic solvent, or of photodegradable polymers; a step (step 2) of forming metal wiring on the sacrificial layer formed in step 1; a step (step 3) of coating the sacrificial layer, on which the metal wiring is formed in step 2, with curable polymers, and hardening the resultant structure so as to obtain a polymer layer having the metal wiring embedded therein; and a step (step 4) of removing only the sacrificial layer existing between the substrate of step 1 and the polymer layer of step 3 by dissolving the sacrificial layer in water or in an organic solvent, or photodecomposing the sacrificial layer, thereby separating the substrate of step 1 and the polymer layer of step 3 from each other.

Classes IPC  ?

• H01B 13/00 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles

Abrégé

The present invention relates to a method for manufacturing an electrolyte membrane for a solid oxide fuel cell, and to a solid oxide fuel cell using same, and more particularly, to a method for manufacturing an electrolyte membrane for a solid oxide fuel cell in which LaGaO3-based powder is sprayed onto a substrate through a powder-spraying coating process at room temperature to form a membrane, and to a solid oxide fuel cell which is stacked in the order of a fuel electrode, an electrolyte membrane, and an air electrode, wherein the electrolyte membrane is manufactured by the above-described method. According to the method for manufacturing the electrolyte membrane for a solid oxide fuel cell and the solid oxide fuel cell using same, unlike in a conventional method in which a thick electrolyte membrane of about 100 μm or more is manufactured due to the interface reaction limitation in a high temperature process, the reaction between the LaGaO3-based electrolyte and the fuel electrode may be minimized using the powder-spraying coating process at room temperature to manufacture an electrolyte membrane for a mid/low-temperature solid oxide fuel cell, the thickness of which is adjustable. Also, since the electrolyte membrane has reduced ohmic resistance due to the reduced thickness of the electrolyte, and has high ion conductivity at mid/low temperatures, the electrolyte membrane may be effectively used for the mid/low-temperature solid oxide fuel cell.

Classes IPC  ?

• H01M 8/12 - Éléments à combustible avec électrolytes solides fonctionnant à haute température, p. ex. avec un électrolyte en ZrO2 stabilisé
• H01M 8/02 - Éléments à combustibleLeur fabrication Détails
• B05D 1/02 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces réalisés par pulvérisation

Abrégé

The present invention relates to a method for manufacturing a high-strength aluminum alloy clad plate and an aluminum alloy clad plate manufactured thereby, and more specifically, to a method for manufacturing an aluminum alloy clad plate using infrared heating, comprising the following steps: (first step) stacking at least one aluminum alloy plate material and then charging into an infrared furnace and heating same;(second step)and rolling the aluminum alloy plate material, which is heated in the first step. The method for manufacturing the high-strength aluminum alloy clad plate using the infrared heating and the aluminum alloy clad plate manufactured thereby, according to the present invention, can allow manufacturing of the aluminum alloy clad plate through a continuous process by heating by means of the infrared heating and rolling the clad plate, and can prevent the deterioration of mechanical properties due to heating at a high temperature by reducing the heating time.

Classes IPC  ?

• B23K 20/04 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage au moyen d'un laminoir
• B23K 20/233 - Soudage non électrique par percussion ou par une autre forme de pression, avec ou sans chauffage, p. ex. revêtement ou placage tenant compte des propriétés des matériaux à souder sans couche ferreuse
• B21B 3/00 - Laminage des matériaux faits d'alliages particuliers dans la mesure où la nature de l'alliage exige ou permet l'emploi de méthodes ou de séquences particulières
• B32B 15/20 - Produits stratifiés composés essentiellement de métal comportant de l'aluminium ou du cuivre

Abrégé

The present invention relates to a template for orienting the crystals of lead-free piezoelectric ceramics, and to a method for manufacturing same. According to the template for orienting the crystals of lead-free piezoelectric ceramics and the method for manufacturing same of the present invention, since the template does not have Pb added thereto, the template is environmentally friendly and can be manufactured even through a low-temperature heat treatment, and since the template has good crystallinity and can have dielectric properties, it can be effectively used to manufacture piezoelectric ceramics for sound wave devices, image devices, audio devices, communication devices, sensors, ultrasonic oscillators, electric machine transducers, actuators, etc.

Classes IPC  ?

• C04B 35/453 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de zinc, d'étain ou de bismuth ou de leurs solutions solides avec d'autres oxydes, p. ex. zincates, stannates ou bismuthates
• C04B 35/495 - Produits céramiques mis en forme, caractérisés par leur compositionCompositions céramiquesTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes à base d'oxydes de vanadium, de niobium, de tantale, de molybdène ou de tungstène ou de leurs solutions solides avec d'autres oxydes, p. ex. vanadates, niobates, tantalates, molybdates ou tungstates
• H01L 41/187 - Compositions céramiques
• C04B 35/622 - Procédés de mise en formeTraitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques

Abrégé

The present invention relates to granules of a brittle material for vacuum granule injection at room temperature, and to a method for forming a coating film using same. Particularly, particulates having a size of 0.1 to 6 µm are granulated and a coating film may be formed through vacuum granule injection at room temperature using the granules. The granules of the brittle material according to exemplary embodiments may be used through the vacuum granule injection at room temperature and a coating process may be continuously performed. Since the granules injected through a nozzle have a relatively large mass and thus have a large amount of kinetic energy, the coating film may be formed at a low gas-flow rate, and the forming rate of the coating film may be increased. Therefore, the granules may be useful for forming a ceramic coating film. In addition, a coating film having a porosity of 10% or less and having a uniform and fine structure that does have non-uniformities such as cracks, large pores, or a lamellar structure may be formed using the method for forming the coating film according to the exemplary embodiments.

Classes IPC  ?

• B01J 2/00 - Procédés ou dispositifs pour la granulation de substances, en généralTraitement de matériaux particulaires leur permettant de s'écouler librement, en général, p. ex. en les rendant hydrophobes
• B01J 2/02 - Procédés ou dispositifs pour la granulation de substances, en généralTraitement de matériaux particulaires leur permettant de s'écouler librement, en général, p. ex. en les rendant hydrophobes par division du produit liquide en gouttelettes, p. ex. par pulvérisation, et solidification des gouttelettes
• C01B 25/32 - Phosphates de magnésium, de calcium, de strontium ou de baryum
• B05B 7/14 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides provenant de plusieurs sources, p. ex. un liquide et de l'air, une poudre et un gaz agencés pour projeter des matériaux en particules
• C23C 24/04 - Dépôt de particules par impact

Abrégé

The present invention relates to a low temperature sintering conductive metal ink and a preparation method thereof. More specifically, the invention provides a method for preparing a conductive metal film or pattern, which comprises: (step 1) preparing the conductive film or pattern and metal nanocolloids, prepared by printing a conductive metal ink comprising metal nanocolloids, metal salts, and polymers causing a reaction with the metal salts; (step 2) preparing a mixture by mixing the metal salts with polymers; (step 3) preparing a metal ink by mixing metal nanocolloids prepared in step 1 with a metal salt/polymer mixture prepared in step 2; (step 4) printing the metal ink prepared in step 3; and (step 5) drying and heat-treating a printed material of step 4.

Classes IPC  ?

• B22F 7/02 - Fabrication de couches composites, de pièces ou d'objets à base de poudres métalliques, par frittage avec ou sans compactage de couches successives
• B22F 3/10 - Frittage seul
• B22F 9/02 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques

Abrégé

The present invention provides a method for manufacturing an aluminum electrode using a wetting process and an aluminum electrode manufactured thereby. The manufacturing method includes the steps of: manufacturing an aluminum precursor solution for the wetting process using AlH3 as a basic material before forming aluminum; coating the aluminum precursor solution on a substrate through the wetting process and drying the aluminum precursor solution; and forming a low work function aluminum electrode through a low-temperature baking process at the temperature of at most 150℃. The method for manufacturing the aluminum electrode according to the present invention improves a thermal defect of the electrode due to a high-temperature baking process, prevents excessive loss of raw materials, and can manufacture aluminum electrodes of various sizes with areas ranging from small to large at relatively low costs and by a simple process under atmospheric pressure.

Classes IPC  ?

• C23C 18/31 - Revêtement avec des métaux
• C23C 18/50 - Revêtement avec des alliages avec des alliages à base de fer, de cobalt ou de nickel
• C23C 28/00 - Revêtement pour obtenir au moins deux couches superposées, soit par des procédés non prévus dans un seul des groupes principaux , soit par des combinaisons de procédés prévus dans les sous-classes et

Abrégé

Disclosed is an electromagnetic wave absorber using a dielectric loss sheet, a method for forming the electromagnetic wave absorber, and a rotary blade for a wind turbine having an electromagnetic wave function using same. The electromagnetic wave absorber using a dielectric loss sheet comprises: a support layer for ensuring a resonance cavity for electromagnetic waves; a highly conductive backing layer formed on the back surface of the support layer; and a dielectric-loss composite sheet layer which is arranged on the front surface of the support layer, and which has a complex dielectric constant for generating a resonant peak with the electromagnetic wave reflected from the highly conductive backing layer.

Classes IPC  ?

• H05K 9/00 - Blindage d'appareils ou de composants contre les champs électriques ou magnétiques
• F03D 11/00 - Détails, parties constitutives ou accessoires non couverts par les autres groupes de la présente sous-classe ou présentant un intérêt autre que celui visé par ces groupes

Abrégé

The present invention relates to a photoactive layer solution for an efficient organic solar cell including core/shell metal oxide nanoparticles, to a method for manufacturing same, and to an organic solar cell including the photoactive layer solution and to a method for manufacturing same. Uniform coating of a substrate having a large area is difficult using the existing PEDOT:PSS. However, using the photoactive layer solution according to the present invention enables P-type metal oxide nanoparticles to be directly dispersed on the photoactive layer, thereby having efficiency similar to the existing layer-by-layer (LbL)-type organic solar cell, and enabling a reduction in costs, since there is no need to deposit a separate p buffer layer such as PEDOT:PSS, and the organic solar cell to be manufactured by means of just a simple wet process. Also, application products can be selected through various types of coating methods.

Classes IPC  ?

• H01L 31/042 - Modules PV ou matrices de cellules PV individuelles
• H01L 51/42 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement en énergie électrique, soit comme dispositifs de commande de l'énergie électrique par ledit rayonnement

Abrégé

The present invention relates to a dense rare earth metal oxide coating film for sealing a porous ceramic surface, and a preparation method thereof. Particularly, the present invention relates to a rare earth metal oxide coating film formed on a porous ceramic film of a substrate, wherein the porous ceramic film has an average surface roughness of 0.4 to 2.3 m. The dense rare earth metal oxide coating film for sealing a porous ceramic surface, and the preparation method thereof, according to the present invention, can provide not only the effect of ensuring withstand voltage characteristics due to the porous ceramic coating film having a sufficient thickness but also the effect of ensuring plasma resistivity due to the dense rare earth metal oxide coating film, and can therefore be applied to various parts of a semiconductor apparatus including a semiconductor etching apparatus.

Classes IPC  ?

• C23C 24/04 - Dépôt de particules par impact
• C23C 4/12 - Revêtement par pulvérisation du matériau de revêtement à l'état fondu, p. ex. par pulvérisation à l'aide d'une flamme, d'un plasma ou d'une décharge électrique caractérisé par le procédé de pulvérisation
• H01L 21/20 - Dépôt de matériaux semi-conducteurs sur un substrat, p. ex. croissance épitaxiale
• B24C 1/00 - Méthodes d'utilisation de jet abrasif en vue d'effectuer un travail déterminéUtilisation d'équipements auxiliaires liés à ces méthodes

Abrégé

The present invention relates to a method for preparing R-Fe-B-based rare earth magnetic powder for a bonded magnet, to magnetic powder prepared by the method, to a method for producing a bonded magnet using the magnetic powder, and to a bonded magnet produced by the method. More particularly, the present invention relates to a method for preparing R-Fe-B-based rare earth magnetic powder having improved magnetic properties, to magnetic powder prepared by the method, to a method for producing a bonded magnet using the magnetic powder, and to a bonded magnet produced by the method. The method for preparing R-Fe-B-based rare earth magnetic powder comprises: a step (step 1) of coarsely grinding sintered rare-earth magnet products serving as raw materials; a hydrogenating step (step 2) of filling an evacuated tube furnace with the ground products obtained in step 1, filling the tube furnace with hydrogen, and raising the temperature of the tube furnace; a phase decomposition step (step 3) of further raising the temperature of the tube furnace under a hydrogen atmosphere that is the same as that of step 2; a hydrogen-emitting step (step 4) of discharging the hydrogen of step 3 from the inside of the tube furnace; and a rebonding step (step 5) of evacuating the hydrogen pressure by vacuum from the inside of the tube furnace after finishing step 4.

Classes IPC  ?

• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 3/00 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet
• H01F 1/053 - Alliages caractérisés par leur composition contenant des métaux des terres rares

Abrégé

The present invention relates to a method for manufacturing magnesium diboride superconductive wire, to the magnesium diboride superconductive wire manufactured using same, and particularly, to a method for manufacturing magnesium diboride superconductive wire by rolling the magnesium diboride raw material powder by using a powder rolling method, wherein the density and connectivity of superconductive powder introduced into a metal coating material can be increased, and accordingly, the actual effective area through which superconductive current can flow may be enlarged. In addition, the manufacturing method of the present invention is advantageous in terms of manufacturing cost and manufacturing speed since the final size of the wire is achieved almost at the onset of processing by employing a powder rolling process. Moreover, the method of the present invention is advantageous in that it can be applied to processes in which various doping materials that function as a flux pinning center are added in order to improve the properties of the flux pinning center of a magnesium diboride superconductive wire under a magnetic field.

Classes IPC  ?

• B22F 3/18 - Fabrication de pièces ou d'objets à partir de poudres métalliques, caractérisée par le mode de compactage ou de frittageAppareils spécialement adaptés à cet effet en utilisant des rouleaux presseurs
• H01B 13/00 - Appareils ou procédés spécialement adaptés à la fabrication de conducteurs ou câbles
• H01B 12/04 - Conducteurs, câbles ou lignes de transmission supraconducteurs ou hyperconducteurs caractérisés par leurs formes à fil unique
• B21F 19/00 - Revêtement métallique des fils métalliques

Abrégé

The present invention relates to a carbon nanotube-invaded metal oxide composite film used as an N-type metal oxide conductive film of an organic solar cell, a manufacturing method thereof, and the organic solar cell with an improved photoelectric conversion efficiency and improved duration using the same, and more specifically, to a metal oxide-carbon nanotube composite film, a manufacturing method thereof, and an organic solar cell with an improved photoelectric conversion efficiency and improved duration using the same, characterized in that a single-wall carbon nanotube which has been surface-treated by a metal oxide is uniformly dispersed and is combined with the metal oxide.

Classes IPC  ?

• H01L 31/042 - Modules PV ou matrices de cellules PV individuelles
• C01B 31/02 - Préparation du carbone; Purification
• C01G 23/047 - Dioxyde de titane
• C01G 9/02 - OxydesHydroxydes
• C01G 19/02 - Oxydes

Abrégé

Disclosed are a patterning method of a metal oxide thin film using nanoimprinting, and a manufacturing method of a light emitting diode (LED). The method for forming a metal oxide thin film pattern using nanoimprinting includes: coating a photosensitive metal-organic material precursor solution on a substrate; preparing a mold patterned to have a protrusion and depression structure; pressurizing the photosensitive metal-organic material precursor coating layer with the patterned mold; forming a cured metal oxide thin film pattern by heating the pressurized photosensitive metal-organic material precursor coating layer or by irradiating ultraviolet rays to the pressurized photosensitive metal-organic material precursor coating layer while being heated; and removing the patterned mold from the metal oxide thin film pattern, and selectively further includes annealing the metal oxide thin film pattern. Within this, there is provided a method for forming a metal dioxe thin film pattern using nano imprinting, which makes it possible to simplify the process for forming the pattern since the process of separately applying the ultraviolet resin to be used as the resist can be omitted, and forms a micro/nano composite pattern through a single imprint process.

Classes IPC  ?

• H01L 21/00 - Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de dispositifs à semi-conducteurs ou de dispositifs à l'état solide, ou bien de leurs parties constitutives

Abrégé

The present invention relates to a metal-oxide/carbon-nanotube composite membrane to be used as a P-type conductive membrane for an organic solar cell, to a method for preparing same, and to an organic solar cell having improved photovoltaic conversion efficiency using the same. More particularly, the present invention relates to a metal-oxide/carbon-nanotube composite membrane to be used as a P-type conductive membrane for an organic solar cell, wherein said composite membrane is prepared by dispersing single-walled carbon nanotubes in an organic solvent, adding metal oxides to the mixture solution, dispersing the mixture solution to obtain a composite solution, and depositing the thus-obtained composite solution onto a substrate. The method also relates to a method for preparing a metal-oxide/carbon-nanotube composite membrane to be used as a P-type conductive membrane of an organic solar cell, comprising: a step (step 1) of dispersing single-walled carbon nanotubes in an organic solvent; a step (step 2) of adding metal oxides to the mixture solution prepared in step 1, and dispersing the mixture solution to obtain a composite solution; and a step (step 3) of depositing the thus-obtained composite solution onto a substrate. The present invention also relates to an organic solar cell formed by laminating components in the following order: a substrate, an electrode, a photoactive layer, a P-type conductive membrane, and an electrode. The P-type conductive membrane is a metal-oxide/carbon-nanotube composite membrane which is prepared by dispersing single-walled carbon nanotubes in an organic solvent, adding metal oxides to the mixture solution, dispersing the mixture solution to obtain a composite solution, and depositing the thus-obtained composite solution onto a substrate.

Classes IPC  ?

• H01L 51/44 - Dispositifs à l'état solide qui utilisent des matériaux organiques comme partie active, ou qui utilisent comme partie active une combinaison de matériaux organiques et d'autres matériaux; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de tels dispositifs ou de leurs parties constitutives spécialement adaptés, soit comme convertisseurs de l'énergie dudit rayonnement en énergie électrique, soit comme dispositifs de commande de l'énergie électrique par ledit rayonnement - Détails des dispositifs
• H01L 31/042 - Modules PV ou matrices de cellules PV individuelles

Abrégé

The present invention relates to a production method and a production device for a composite metal powder using the gas spraying method, and more specifically to a production method for a composite metal powder using the gas spraying method, comprising the steps of: introducing a matrix phase into a chamber; providing a reinforcing phase in the chamber; forming a melt pool by melting the matrix phase which was introduced; adding the reinforcing phase to the melt pool; forming a mixed melt pool by stirring the melt pool into which the reinforcing phase was added; forming a composite metal powder which contains the reinforcing phase by spraying a gas together with the mixed melt pool; and recovering the composite metal powder so formed; and relates to a production device for a composite metal powder using the gas spraying method, comprising: an upper chamber on the inside of which is provided a crucible where the matrix phase is introduced and melted; an introduction means provided above the crucible on the inside of the chamber, so as to allow the reinforcing phase to be selectively introduced into the crucible; a stirring means for stirring the melt pool formed by heating the inside of the crucible and the reinforcing phase introduced into the crucible via the introduction means; a spraying nozzle for producing a powder by spraying a gas together with the mixed melt pool formed by using the stirring means to stir the melt pool and the reinforcing phase; and a lower chamber constituting a recovery area for the composite metal powder produced by means of the spraying nozzle; and also relates to a production method for a composite metal powder using the gas spraying method, comprising the steps of: (Step 1) either producing a melt pool by heating and so melting an aluminium ingot or an Al-Si based alloy comprising the reinforcing phase and then adding a metal ingot, alloy ingot or aluminium-reinforcing phase powder and stirring, or producing a melt pool by subjecting an aluminium/reinforcing phase powder to Al-foiling and then charging at the bottom end of an aluminium parent material and heating and stirring; and (Step 2) producing a composite metal powder by spraying a gas together with the melt pool produced in Step 1.

Classes IPC  ?

• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22D 27/00 - Traitement du métal dans le moule pendant qu'il est liquide ou plastique

Abrégé

The present invention relates to an underwater breathing mask adopting a system which separates breath gas in the water to enable a user to breathe. Particularly, the present invention relates to an underwater breathing mask having a breath gas separating apparatus in which fine holes are formed through a fine pipe having a surface that is treated so as to be hydrophobic, such that breath gas is separated by means of the fine holes in the water to enable the user to breathe.

Classes IPC  ?

• B63C 11/12 - Masques de plongée

Abrégé

The present invention relates to a cooling apparatus and to a cooling method for an indirect extruder, wherein the technical aim of the present invention is to provide a cooling apparatus and a cooling method for an indirect extruder, which enable a cooling medium to flow through a stem and a die, and which directly inject the cooling medium into an extrudate in the die, to thereby prevent the temperature of the extrudate from excessively rising and thus improving the speed of extrusion. For this purpose, the cooling apparatus for an indirect extruder according to the present invention comprises a stem, a die and a billet. The stem has an outer surface on which a plurality of cooling medium injection ports are formed such that a cooling medium can be supplied therethrough, and has an interior in which a plurality of cooling medium conveying pipes are connected to the respective cooling medium injection ports to enable the cooling medium to flow toward the ends of the cooling medium conveying pipes. The die is connected to an end of the stem, and has an interior in which a plurality of cooling medium dispersing pipes are formed to disperse the cooling medium conveyed through the cooling medium conveying pipes, and has an outer surface on which a cooling medium dispersing groove is formed. The cooling medium dispersing groove has dispersing holes connected to the cooling medium dispersing pipes such that the cooling medium conveyed through the cooling medium conveying pipes is uniformly supplied to the cooling medium dispersing pipes via the dispersing holes. The billet is arranged at an end of the die to shape the extrudate that has been extruded through the stem and the die by indirect extrusion. The cooling medium cools the die while passing through the cooling medium dispersing pipes, and cools the extrudate while being directly injected into the extrudate after passing through the cooling medium dispersing pipes.

Classes IPC  ?

• B21C 3/14 - Supports de filières combinés à des dispositifs de guidage du matériau à étirer, ou à des dispositifs pour le refroidissement, le chauffage ou la lubrification
• B21C 29/04 - Refroidissement ou chauffage des produits extrudés ou des parties de la presse d'extrusion des têtes de presses, des filières, ou des mandrins

Abrégé

Provided is a fabrication method for a functional surface that has self-cleaning ability and superhydrophilic anti-reflective property, which includes a) arranging a plurality of beads having a sphere shape on a surface of a transparent substrate; b) forming a predetermined inter-bead gap by etching the plurality of beads; c) forming a surface unevenness on the surface of the substrate by etching the substrate using the plurality of the beads having the predetermined gap as an etching mask; d) removing the plurality of the beads from the surface of the substrate; and e) forming a photocatalytic layer or a compound layer having a surface tension of 18 to 28 N/m on the surface of the substrate formed with the surface unevenness.

Classes IPC  ?

• C23C 16/00 - Revêtement chimique par décomposition de composés gazeux, ne laissant pas de produits de réaction du matériau de la surface dans le revêtement, c.-à-d. procédés de dépôt chimique en phase vapeur [CVD]
• C23C 16/02 - Pré-traitement du matériau à revêtir
• C23C 16/26 - Dépôt uniquement de carbone
• C23C 16/40 - Oxydes
• B05D 5/08 - Procédés pour appliquer des liquides ou d'autres matériaux fluides aux surfaces pour obtenir des effets, finis ou des structures de surface particuliers pour obtenir une surface antifriction ou anti-adhésive

Abrégé

The present invention relates to high strength / corrosion-resistant, austenitic stainless steel with a carbon-nitrogen complex additive, and particularly, to an austenitic stainless steel with a carbon (C) and nitrogen (N) complex additive containing: 8-12 wt % of manganese (Mn); 15-20 wt % of chromium (Cr); less than 2 wt % of nickel (Ni); less than 4 wt % of tungsten (W); less than 2 wt % of molybdenum (Mo); 0.6-1.0 wt % of the total content (C+N) of carbon (C) and nitrogen (N); with the remainder being iron (Fe) and other unavoidable impurities, and to a method for manufacturing same. By controlling the content of the interstitial elements (C+N, C/N) and the substitution elements (Mn+Cr, Mn/Cr, or 0.5W+Mo), the austenitic stainless steel manufactured according to the present invention has a tensile strength of more than 850 MPa and uniform elongation of more than around 45%, thereby exhibiting excellent corrosion resistance as well as improving processability, and the content of Ni, a toxic alloy element, is minimized to improve biocompatibility, making the austenite stainless steel applicable to conventional and offshore structures, desalination facilities, and materials for oil and gas facilities / drilling, transportation and the like, which require high strength and high corrosion resistance, and may also be used to manufacture various functional parts for medical prosthetic materials, and accessories such as jewelry, watches, and the like.

Classes IPC  ?

• C22C 38/38 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et plus de 1,5% en poids de manganèse
• C22C 38/44 - Alliages ferreux, p. ex. aciers alliés contenant du chrome et du nickel et du molybdène ou du tungstène

Abrégé

The present invention relates to an apparatus for producing a composite metal powder using a gas atomization process, and to a method for producing a composite metal powder using same. More particularly, to accomplish the above aim, the present invention relates to an apparatus for producing a composite metal powder using a gas atomization process, comprising: a housing; a crucible accommodated in the housing and containing molten metal; an induction coil arranged along the outer surface of the crucible; an atomizing nozzle connected to the crucible to spray the molten metal in the crucible; a dissolving chamber containing the materials sprayed by the atomizing nozzle; a gas discharge system which discharges argon (Ar) gas or a gas mixture of nitrogen and oxygen; and a lower chamber communicating with the dissolving chamber to collect composite metal powder. The present invention also relates to a method for producing a composite metal powder using a gas atomization process, comprising: (a) a titanium carbide preparation step of injecting carbon into a molten metal mixture of aluminum (Al) and titanium (Ti) to prepare titanium carbide (TiC); (b) an ingot-forming step of forming an ingot of the titanium carbide (TiC) prepared in step (a) and aluminum-silicon (AlSi); (c) an injecting step of injecting the ingot of the titanium carbide (TiC) and aluminum-silicon (AlSi) formed in step (b) into the crucible; (d) a heating step of enabling a cylindrical heating coil arranged along the periphery of the crucible to heat the ingot injected into the crucible in step (c) in order to prepare molten metal by high frequency induction heating; (e) a flowing step of enabling the molten metal prepared in step (d) to flow into the nozzle; (f) a spraying step of spraying argon (Ar) gas or a gas mixture of nitrogen and oxygen from the end of the nozzle; and (g) a collecting step of collecting the composite aluminum powder containing titanium carbide (TiC) prepared through step (f).

Classes IPC  ?

• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensionsAppareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p. ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22D 7/02 - Coulée de lingots bimétal ou multimétal à partir de métaux liquides, c.-à-d. intégralement coulés
• B22F 1/00 - Poudres métalliquesTraitement des poudres métalliques, p. ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés

Abrégé

Disclosed is a fabrication method of products with closed channels by injection molding, which includes: a channel substrate mounting step of mounting a channel substrate comprising a plurality of opened micro-channels thereon to a mold; and a substrate cover molding step of molding a substrate cover by the injection molding on an upper surface of the channel substrate mounted to the mold, the substrate cover being coupled to the channel substrate while being molded. With this, the products with the closed channels can be fabricated without any additional coupling process between the channel substrate having the opened channels and the substrate cover, thereby simplifying a fabrication process and enhancing work efficiency.

Classes IPC  ?

• B29C 45/14 - Moulage par injection, c.-à-d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule ferméAppareils à cet effet en incorporant des parties ou des couches préformées, p. ex. moulage par injection autour d'inserts ou sur des objets à recouvrir

Abrégé

The present invention relates to a structure of a module of a robot having at least two degrees of freedom (2DOF). More particularly, the present invention relates to a structure of a modular robot actuation system, comprising: a fixed housing forming the outer appearance of the module; a rotatable housing connected to the fixed housing; and an input connector and an output connector with respective cables connected to the outside of the fixed housing and to the outside of the rotatable housing, respectively. The input connector and the output connector are interconnected through the inside of the fixed housing and the inside of the rotatable housing. The cable connected to the output connector of the rotatable housing is connected to the input connector of the fixed housing forming the outer appearance of another module, which is identical to the above-described module and also has a rotatable housing.

Classes IPC  ?

• B25J 9/08 - Manipulateurs à commande programmée caractérisés par des éléments de construction modulaires
• B25J 19/00 - Accessoires adaptés aux manipulateurs, p. ex. pour contrôler, pour observerDispositifs de sécurité combinés avec les manipulateurs ou spécialement conçus pour être utilisés en association avec ces manipulateurs

Abrégé

A super water repellent surface is prepared by arranging plural spherical beads on a substrate surface to form a (N)-th bead layer, etching the substrate surface with the (N)-th bead layer as an etching mask, arranging plural spherical beads, which are larger than the (N)-th beads in diameter, on the substrate surface to form a (N+1)-th bead layer, etching the substrate surface with the (N+1)-th bead layer as an etching mask, removing the beads from the etched substrate surface and coating a fluorine compound on the substrate surface on which a hierarchical concavo-convex structure has been formed. The (N+1)-th bead layer forming step and the (N+1)-th etching step are repeated N times.

Classes IPC  ?

• C25F 3/00 - Attaque de surface ou polissage électrolytique
• B44C 1/22 - Enlèvement superficiel de matière, p. ex. par gravure, par eaux fortes
• C03C 15/00 - Traitement de surface du verre, autre que sous forme de fibres ou de filaments, par attaque chimique

Abrégé

The present invention relates to a plasma reaction apparatus and a plasma reaction method using the same. More particularly, the present invention relates to a plasma reaction apparatus which is applied to the reforming of fuel by generating rotating arc plasma and using the rotating arc being generated, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst, and a plasma reaction method using the same. For this purpose, a raw material for a reaction is allowed to flow through an inflow hole in a swirl structure so that the raw material forms a rotating flow to progress. Accordingly, the raw material is sufficiently reacted in a plasma reaction space of a restrictive volume, and a high temperature plasma reaction is more promptly performed. Furthermore, a plasma reaction zone is expanded, prior to discharge, by a broad area chamber formed as the width of an upper part of a furnace is expanded, and plasma being generated is expanded and stayed as a pointed end spaced from an electrode at a predetermined interval is formed at an expanded end. Accordingly, the present invention relates to a plasma reaction apparatus and a plasma reaction method using the same, a plasma reaction method of a persistent gas, and an apparatus decreasing NOx by an occlusion catalyst, all of which are capable of excluding the discontinuity of the plasma reaction zone.

Classes IPC  ?

• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage

Abrégé

An apparatus treats harmful particulate matter generated through combustion. The apparatus includes a concentrator concentrating the harmful particulate matter and a plasma generator burning the concentrated harmful particulate matter. Thereby, the harmful particulate matter can be efficiently removed.

Classes IPC  ?

• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage
• F01N 3/01 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement au moyen de séparateurs électriques ou électrostatiques
• B01D 53/94 - Épuration chimique ou biologique des gaz résiduaires des gaz d'échappement des moteurs à combustion par des procédés catalytiques
• B01D 46/00 - Filtres ou procédés spécialement modifiés pour la séparation de particules dispersées dans des gaz ou des vapeurs
• F01N 3/08 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour rendre les gaz d'échappement inoffensifs

Abrégé

Provided is a power plant having a pure oxygen combustor. The power plant includes a heat supplying unit supplying a heated steam; a turbine unit generating mechanical energy by rotating a turbine using the heated steam supplied by the heat supplying unit; a power generator converting mechanical energy generated by the turbine unit into electrical energy; a steam condenser condensing steam passing through the turbine unit; and a first combustor disposed at one side of the turbine unit and reheating the steam supplied to the turbine unit by using pure oxygen combustion.

Classes IPC  ?

• F01K 19/04 - Régénération par compression combinée avec un refroidissement ou un réchauffage

Abrégé

The present invention provides a process for the preparation of a super water repellent surface comprising the steps of arranging a plurality of spherical beads on the surface of a substrate to form a (N)-th bead layer, etching the substrate surface with the (N)-th bead layer as etching mask, arranging a plurality of spherical beads, which are larger than the (N)-th beads in diameter, on the substrate surface to form a (N+1)-th bead layer, etching the substrate surface with the (N+1)-th bead layer as etching mask, removing the beads from the etched substrate surface and coating a fluorine compound on the substrate surface on which a hierarchical concavo-convex structure has been formed, wherein the (N+1)-th bead layer forming step and the (N+1)-th etching step are repeated for N times.

Classes IPC  ?

• C03C 15/00 - Traitement de surface du verre, autre que sous forme de fibres ou de filaments, par attaque chimique

Abrégé

There is provided a plasma and bio filter hybrid gas cleaning system in a contaminated noxious gas processing system, comprising: a pneumatic nozzle for supplying a contaminated noxious gas exhausted from a contaminated gas exhausting source, together with water; a plasma reaction unit positioned under the pneumatic nozzle and connected to a high voltage application unit; a bio filter unit positioned under the plasma reaction unit; a water tank positioned under the bio filter unit, for storing the water flowing down from the bio filtering unit part; a water pump for circulating the water stored in the water tank to the pneumatic nozzle; and a blower for supplying the contaminated noxious gas to the pneumatic nozzle. In accordance with the plasma and bio filter hybrid gas cleaning system, the water and the noxious gas are simultaneous supplied to the plasma reaction unit, so that the performance of decomposing the noxious gas is increased; water particles and oxygen are uniformly supplied to the bio filter unit through the pneumatic nozzles and the plasma discharge, so that the noxious gas cleaning function of microorganisms is improved; and the processing capacity increases while reducing pressure loss, compared to a conventional bio filter.

Classes IPC  ?

• B01D 53/32 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par effets électriques autres que ceux prévus au groupe

Abrégé

Disclosed herein are a bioactive ceramic coating having excellent biocompatibility and a preparation method thereof. The bioactive ceramic coating is coated onto a metallic material or a ceramic material, including alumina or zirconia, consists of crystalline grains, having an average diameter of less than 0.1 &mgr;m, and non-crystalline grains, and has a density of greater than 95% and a thickness ranging from 0.1 to 100 &mgr;m. Since the bioactive ceramic coating is present at a mixed state of crystalline grains, having an average diameter of less than 100 nm, and non-crystalline grains, has a crack-free and dense structure, and has excellent biocompatibility, it is useful in bone reconstruction, for example, as a surgical implant or an artificial hip joint.

Classes IPC  ?

• A61F 2/28 - Os

Abrégé

Disclosed is a flat-type non-thermal plasma reactor treating harmful gases, which can greatly improve durability against thermal stress, and stably generate low-temperature plasma in an environment in which gases to be treated for a vehicle has a wide variation range of temperature and a great variation volume with respect to a time, individually provide electrode leads of the high-voltage electrode stack section to high-voltage electrode plates, intercept overcurrent such as arc resulting from abnormal discharge by means of a fuse installed to each electrode terminal, prevent electric power from being supplied to a plasma layer in which an insignificant problem occurs as long as there is no problem of overall performance, and thus extend a lifetime of the flat-type non-thermal plasma reactor.

Classes IPC  ?

• H01L 21/02 - Fabrication ou traitement des dispositifs à semi-conducteurs ou de leurs parties constitutives

Abrégé

An apparatus treats harmful particulate mattergenerated through combustion. The apparatus includes a concentrator concentrating the harmful particulate matter and a plasma generator burning the concentrated harmful particulate matter. Thereby, the harmful particulate matter can be efficiently removed.

Classes IPC  ?

• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement

Abrégé

The present invention relates to a plasma reaction apparatus and a plasma reaction method using the same. More particularly, the present invention relates to a plasma reaction apparatus which is applied to the reforming of fuel by generating rotating arc plasma and using the rotating arc being generated, the chemical treatment of a persistent gas, and the apparatus for decreasing NOx by an occlusion catalyst, and a plasma reaction method using the same. For this purpose, a raw material for a reaction is allowed to flow through an inflow hole in a swirl structure so that the raw material forms a rotating flow to progress. Accordingly, the raw material is sufficiently reacted in a plasma reaction space of a restrictive volume, and a high temperature plasma reaction is more promptly performed. Furthermore, a plasma reaction zone is expanded, prior to discharge, by a broad area chamber formed as the width of an upper part of a furnace is expanded, and plasma being generated is expanded and stayed as a pointed end spaced from an electrode at a predetermined interval is formed at an expanded end. Accordingly, the present invention relates to a plasma reaction apparatus and a plasma reaction method using the same, a plasma reaction method of a persistent gas, and an apparatus decreasing NOx by an occlusion catalyst, all of which are capable of excluding the discontinuity of the plasma reaction zone.

Classes IPC  ?

• B01J 19/08 - Procédés utilisant l'application directe de l'énergie ondulatoire ou électrique, ou un rayonnement particulaireAppareils à cet usage

Abrégé

The present invention relates to a method for attaching nanomaterials by using a Langmuir- Blodgett method, wherein a Langmuir-Blodgett (LB) film, which is comprised of nanomaterials, is formed from a dispersed solution where the nanomaterials are stably dispersed in a volatile organic solvent, and then the nanomaterials of the LB film are transferred to a substrate or a holder. The method according to the present invention may be desirably applied to fabrication of a nanopattern structure, or manufacture of a probe, as a mechanical and electric device, for detecting signals such as surface or chemical signals.

Classes IPC  ?

• C01B 31/00 - Carbone; Ses composés

Abrégé

Provided is a burner for regenerating a diesel engine particulate filter. The burner includes: a combustion chamber for receiving exhaust gas from a diesel engine; a carburetor for gasifying liquid fuel; a mixed gas supplying unit for mixing the gasified fuel with an external air, and supplying the mixed gaseous fuel to the combustion chamber; a mixed gas storing chamber disposed in the combustion chamber for receiving the mixed gaseous fuel and instantly storing the received mixed gaseous fuel; an inner flame combustor made of porous material for injecting the mixed gaseous fuel toward the inside of the inner flame combustor, and disposed in the combustion chamber to allow an exhaust gas to flow through the inner flame combustor; an igniter for igniting the mixed gaseous fuel; and a flame sensor for sensing the flame on the inner flame combustor.

Classes IPC  ?

• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement

Abrégé

The present invention relates to a method for manufacturing a flexible transparent electrode, comprising the steps of: (1) forming a thin film of carbon nanotube on a solid substrate; (2) coating a precursor capable of forming a flexible transparent substrate on the thin film of carbon nanotube; (3) curing the precursor to make a flexible transparent substrate on which the thin film of carbon nanotube is fixed; and (4) removing the solid substrate, and to the flexible transparent electrode manufactured thereby. Using the method of the present invention, a flexible transparent electrode with large area can be obtained, which maintains stable adhesiveness of the carbon nanotube film to the substrate even after repeated bending and folding. The flexible transparent electrode according to the invention can be advantageously used in various applications such as displays, electronic devices, sensors, memory devices or the like.

Classes IPC  ?

• H05B 33/10 - Appareils ou procédés spécialement adaptés à la fabrication des sources lumineuses électroluminescentes

Abrégé

Provided are a burner for regenerating a diesel particulate filter anda diesel engine particulate filtering apparatus having the same. The burner includes: an exhaust gas flow channel; a swirler disposed between the exhaust gas flow channel and a combustion chamber for swirling the exhaust gas; a carburetor for gasifying a liquid fuel; a fuel injection nozzle for mixing the gasified fuel from the carburetor with an air for burning, and supplying the mixed gas made of the gasified fuel and the air to the combustion chamber; a combustor disposed in the combustion chamber for injecting the mixed gas supplied from the fuel injection nozzle; an igniter for igniting the mixed gas injected from the combustor by generating sparks; and a flame sensor for sensing whether the flame is made on the combustor or not.

Classes IPC  ?

• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement
• F01N 3/025 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement au moyen de filtres utilisant des moyens pour régénérer les filtres, p. ex. par combustion des particules piégées en utilisant un brûleur à combustible ou par addition de combustible à l'échappement

Abrégé

Provided is a burner for regenerating a diesel engine particulate filter. The burner includes: a combustion chamber for receiving a exhaust gas through connecting pipes from a diesel engine; a carburetor including a gasifying chamber for gasifying a liquid fuel, an atomizer for atomizing and supplying the liquid fuel to the gasifying chamber, and a convey air inflow line for flowing an external air into the gasifying chamber for conveying the gasified fuel into a mixed gas supplying unit; a mixed gas supplying unit for mixing the gasified fuel with an external air for burning, and supplying the mixed gaseous fuel to the combustion chamber; a combustor disposed in the combustion chamber for injecting the mixed gaseous fuel; an igniter for igniting the mixed gaseous fuel injected from the combustor; and a flame sensor for sensing whether the flame is made on the surface of the combustor or not.

Classes IPC  ?

• F01N 3/02 - Silencieux ou dispositifs d'échappement comportant des moyens pour purifier, rendre inoffensifs ou traiter les gaz d'échappement pour refroidir ou pour enlever les constituants solides des gaz d'échappement