Disclosed is a method for manufacturing a porous ceramic sintered body including: molding a ceramic powder having a tamped density of 1.0 g/cm3 or less to obtain a ceramic article; forming a carbon powder-containing layer on a surface of the ceramic article to obtain a laminate; and irradiating a surface of the carbon powder-containing layer of the laminate with a laser beam to form a porous ceramic sintered portion.
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION (Japan)
Inventor
Kawahara, Koichi
Suzuki, Masaya
Osada, Norikazu
Inuzuka, Riko
Kameda, Tsuneji
Kawamori, Hiroaki
Abstract
A solid oxide electrochemical cell includes an oxygen electrode containing a strontium-containing perovskite-type composite oxide represented by Ln1-xSrxCo1-y-zFeyBzO3-δ (Ln is a trivalent lanthanide element, B is a tetravalent element, 0
H01M 8/1253 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing zirconium oxide
H01M 4/86 - Inert electrodes with catalytic activity, e.g. for fuel cells
H01M 8/1213 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION (Japan)
Inventor
Kawahara, Koichi
Suzuki, Masaya
Osada, Norikazu
Inuzuka, Riko
Kameda, Tsuneji
Kawamori, Hiroaki
Abstract
A solid oxide electrochemical cell includes an oxygen electrode containing a strontium- containing perovskite-type composite oxide represented by Lni-xSrxCoi-y- zFeyBz03-8 (Ln is a trivalent lanthanide element, B is a tetravalent element, 0
H01M 8/1253 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte the electrolyte consisting of oxides the electrolyte containing zirconium oxide
Disclosed is a method for manufacturing a sintered body by sintering with laser irradiation, the method for manufacturing a sintered body, including: a raw material providing step of providing a raw material containing a ceramic powder and a laser absorbing oxide having an absorption rate at a laser wavelength higher by 5% or more than that of the ceramic powder; an article forming step of forming an article formed from the raw material, an article partially including a region consisting of only the raw material, or an article formed from the raw material and formed on a base material; and a sintering step of irradiating the article with a laser to form a sintered portion.
C04B 35/581 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on aluminium nitride
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
A method for producing a ceramic sintered body that includes a mixing step for mixing a ceramic powder and carbon powder to obtain a mixed powder, a molding step for molding the mixed powder to obtain a molded body, and a sintering step for irradiating the molded body with laser light to form a ceramic sintered portion.
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
6.
METHOD FOR MANUFACTURING POROUS CERAMICS SINTERED BODY AND POROUS CERAMICS SINTERED BODY
This method for manufacturing a porous ceramics sintered body comprises: a step of molding a ceramics powder having a tamped bulk density of 1.0 g/cm3 or less to obtain a ceramics article; a step of forming a carbon-powder-containing layer on a surface of the ceramics article to obtain a laminated object; and a step of irradiating a surface of the carbon-powder-containing layer of the laminated object with laser light to form a porous ceramics sintered body.
B28B 1/30 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon
C04B 38/00 - Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
As a device for correcting positive spherical aberration of an electromagnetic lens for a charged particle beam, a spherical aberration correction device combining a hole electrode and a ring electrode is known. In this spherical aberration correction device, when a voltage is applied between the hole electrode and the ring electrode, the focus of the charged particle beam device changes due to the convex lens effect generated in the hole electrode. Therefore, in a charged particle beam device including a charged particle beam source which generates a charged particle beam, a charged particle beam aperture having a ring shape, and a charged particle beam aperture power supply which applies a voltage to the charged particle beam aperture, the charged particle beam aperture power supply is configured to apply, to the charged particle beam aperture, a voltage having a polarity opposite to a polarity of charges of the charged particle beam.
A method for producing an alumina sintered body, comprising: molding an alumina powder to obtain an alumina article, the alumina powder comprising alumina particles having a particle diameter of not less than 0.1 μm and less than 1 μm, and alumina particles having a particle diameter of not less than 1 μm and less than 100 μm; forming a carbon powder-containing layer on a surface of the alumina article to obtain a laminate body; and irradiating a surface of the carbon powder-containing layer of the laminate body with a laser light to form a transparent alumina sintered portion.
A method for manufacturing a sintered body by sintering by laser irradiation, comprising: a raw material preparation step of preparing a raw material including a ceramic powder and a laser radiation-absorbing oxide having an absorption rate at a laser wavelength of 5% or more higher than that of the ceramic powder; an article forming step of forming an article composed of the raw material, an article including a region configured of only the raw material in a part thereof, or an article composed of the raw material and formed on a base material; and a sintering step of irradiating the article with a laser to form a sintered portion.
The present invention is a sintering method of a ceramic for sintering characterized by forming a layer containing a carbon powder on a surface of an article consisting of a ceramic for sintering, and then irradiating with laser a surface of the carbon powder-containing layer of a lamination obtained.
B28B 1/00 - Producing shaped articles from the material
B28B 1/32 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon by projecting, e.g. spraying
C04B 35/58 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
As a device for correcting positive spherical aberration of an electromagnetic lens for a charged particle beam, a spherical aberration correction device combining a hole electrode and a ring electrode is known. In this spherical aberration correction device, when a voltage is applied between the hole electrode and the ring electrode, the focus of the charged particle beam device changes due to the convex lens effect generated in the hole electrode. Therefore, in a charged particle beam device including a charged particle beam source which generates a charged particle beam, a charged particle beam aperture having a ring shape, and a charged particle beam aperture power supply which applies a voltage to the charged particle beam aperture, the charged particle beam aperture power supply is configured to apply, to the charged particle beam aperture, a voltage having a polarity opposite to a polarity of charges of the charged particle beam.
When using a charged particle beam aperture having a ring shape in a charged particle beam device, the charged particle beam with the highest current density immediately above the optical axis, among the charged particle beams is blocked, so that it is difficult to dispose the charged particle beam aperture at the optimal mounting position. Therefore, in addition to the ring-shaped charged particle beam aperture, a hole-shaped charged particle beam aperture is provided, and it is possible to switch between the case where the ring-shaped charged particle beam aperture is disposed on the optical axis of the charged particle beam and the case where the hole-shaped charged particle beam aperture is disposed on the optical axis of the charged particle beam.
H01J 37/00 - Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
H01J 37/147 - Arrangements for directing or deflecting the discharge along a desired path
H01J 37/145 - Combinations of electrostatic and magnetic lenses
H01J 37/244 - Detectors; Associated components or circuits therefor
13.
ALUMINUM SINTERED BODY PRODUCTION METHOD AND ALUMINUM SINTERED BODY
A production method for an aluminum sintered body including: a step in which an alumina powder that includes alumina particles having a particle diameter of at least 0.1 and less than 1 μm and alumina particles having a particle diameter of at least 1 and less than 100 μm is formed and an aluminum product is obtained; a step in which a carbon powder-containing layer is formed on the surface of the aluminum product and a laminated product is obtained; and a step in which a laser is irradiated on the surface of the carbon powder-containing layer of the laminated product and a transparent aluminum sintered section is formed.
NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY (Japan)
JAPAN FINE CERAMICS CENTER (Japan)
Inventor
Nakamura, Takeshi
Kotani, Masahiro
Goto, Ken
Ito, Akihiko
Kitaoka, Satoshi
Yokoe, Daisaku
Matsuda, Tetsushi
Abstract
A high-temperature-steam-oxidation-resistive coated reinforcement fiber applicable to a fiber reinforced composite, is provided with: a reinforcement fiber; a coating layer covering the reinforcement fiber and including a rare-earth silicate; an exfoliative layer intervening in an interface between the coating layer and the reinforcement fiber; and a supplemental coating layer covering the reinforcement fiber, the exfoliative layer and the coating layer.
D06M 11/79 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
D06M 11/74 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with carbon or compounds thereof with graphitic acids or their salts
C04B 35/80 - Fibres, filaments, whiskers, platelets, or the like
A thermal barrier coating material containing a compound X that is a deficient perovskite-type composite oxide of a cation-deficient type, wherein a unit lattice of the compound X has such a structure that two octahedrons each composed of six oxygen atoms and sharing one oxygen atom with each other are arranged side-by-side, the center axes of two octahedrons that respectively belong to adjacent unit lattices and are adjacent to each other are inclined with respect to each other in the compound X, multiple sets of the two octahedrons which respectively belong to adjacent unit lattices and are adjacent to each other are arranged so as to form such a periodic structure that octahedrons having different tilts are arranged alternately, and the compound X has, in the crystal structure thereof, an interface on which the periodicity of the periodic structure is altered.
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
F01D 25/00 - Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups ; Air intakes for jet-propulsion plants
The present invention provides a solar-heat-collecting pipe that includes, in the stated order from the inner side on the outer surface of a ferrous metal pipe through the interior of which a heat transfer medium can flow, at least a first diffusion-preventing layer, a second diffusion-preventing layer, an infrared-reflecting layer, a sunlight-to-heat conversion layer, and a reflection-preventing layer. The first diffusion-preventing layer includes at least one selected from the group consisting of silicon oxide, aluminum oxide, and chromium oxide. The second diffusion-preventing layer includes at least one selected from the group consisting of tantalum nitride, tantalum oxynitride, titanium nitride, titanium oxynitride, niobium nitride, and niobium oxynitride.
F24S 10/70 - Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
F24S 70/12 - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS - Details of absorbing elements characterised by the absorbing material made of metallic material
F24S 70/225 - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS - Details of absorbing elements characterised by surface treatment for increasing absorption for spectrally selective absorption
When using a charged particle beam diaphragm having an annular shape in a charged particle beam device, arranging the charged particle beam diaphragm in the optimal loading position is difficult because the charged particle beam positioned directly on an optical axis having the highest current density within the charged particle beam is shielded. Consequently, the present invention is provided with a charged particle beam diaphragm 119 having a circular hole shape separately from a charged particle beam diaphragm 120 having an annular shape, and it is possible to switch between a situation in which the charged particle beam diaphragm having an annular shape is arranged on the optical axis of the charged particle beam and a situation in which the charged particle beam diaphragm having the circular hole shape is arranged on the optical axis of the charged beam particle.
The invention addresses the problem that, although a spherical surface aberration correction device wherein a circular hole electrode and a ring electrode have been combined is known as a device for correcting a positive spherical aberration of an electromagnetic lens for use in a charged-particle beam, when a voltage is applied between the circular hole electrode and the ring electrode in such a spherical surface aberration correction device, the focus of the charged-particle beam device varies due to a convex lens effect arising at the circular hole electrode. Therefore, in the charged-particle beam device of the present invention, comprising a charged-particle beam source (101) generating the charged-particle beam, a ring-shaped charged-particle beam aperture (120), and a charged-particle beam aperture power source (108) applying a voltage to the charged-particle beam aperture, the charged-particle beam aperture power source is constituted in such a manner as to apply to the charged-particle beam aperture a voltage yielding a polarity that is opposite to the charge of the charged-particle beam.
xyz(3x+5y+4z)/222) (B) a layer which is mainly composed of a compound that is composed of tantalum (Ta), hafnium (Hf) and oxygen (O) (C) a layer which is mainly composed of a compound that is composed of a rare earth element, tantalum (Ta), hafnium (Hf) and oxygen (O)
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
C23C 4/073 - Metallic material containing MCrAl or MCrAlY alloys, where M is nickel, cobalt or iron, with or without non-metal elements
F01D 5/28 - Selecting particular materials; Measures against erosion or corrosion
F02C 7/00 - Features, component parts, details or accessories, not provided for in, or of interest apart from, groups ; Air intakes for jet-propulsion plants
C23C 28/00 - Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
20.
ENVIRONMENT-RESISTANT COATED REINFORCING FIBRE FOR USE IN FIBRE-REINFORCED COMPOSITE MATERIAL
NATIONAL UNIVERSITY CORPORATION YOKOHAMA NATIONAL UNIVERSITY (Japan)
JAPAN FINE CERAMICS CENTER (Japan)
Inventor
Nakamura Takeshi
Kotani Masahiro
Goto Ken
Ito Akihiko
Kitaoka Satoshi
Yokoe Daisaku
Matsuda Tetsushi
Abstract
This coated reinforcing fibre which is to be used in a fibre-reinforced composite material, and which exhibits high-temperature steam oxidation resistance, is provided with: a reinforcing fibre; a coating layer which covers the reinforcing fibre, and which includes a rare-earth silicate; a release layer which is interposed at the interface between the coating layer and the reinforcing fibre; and an additional coating layer which covers the reinforcing fibre, the release layer, and the coating layer.
D06M 11/79 - Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
C04B 35/80 - Fibres, filaments, whiskers, platelets, or the like
D01F 9/08 - Man-made filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
An environmental resistant coating member includes a SiC long fiber-reinforced ceramics substrate and an environmental barrier coating layer provided on the whole surface of the SiC long fiber-reinforced ceramics substrate. The environmental barrier coating layer includes a SiAlON bonding layer laminated on the SiC long fiber-reinforced ceramics substrate, a mullite layer laminated on the SiAlON bonding layer, a reaction inhibition layer laminated on the mullite layer, and a gradient layer formed on the reaction inhibition layer that gradually changes from a rare-earth disilicate to a rare-earth monosilicate. The reaction inhibition layer includes at least one of an alumina layer, a garnet layer, and a rare-earth (mono)silicate layer. When the reaction inhibition layer includes two or more of these layers, the layers are formed in the order of the alumina layer, the garnet layer, and the rare-earth (mono)silicate layer from a mullite layer side toward a gradient layer side.
C04B 41/00 - After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
C04B 35/565 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides based on silicon carbide
C04B 35/597 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on silicon oxynitrides
C04B 41/85 - Coating or impregnating with inorganic materials
C04B 111/00 - Function, property or use of the mortars, concrete or artificial stone
C04B 111/27 - Water resistance, i.e. waterproof or water-repellent materials
A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube has a multilayer structure in which an Ag layer, having dispersed therein at least one metal selected from the group consisting of Mo, W, Ta, Nb and Al, is sandwiched between two metal protective layers.
F24S 70/12 - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS - Details of absorbing elements characterised by the absorbing material made of metallic material
F24S 10/70 - Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
F24S 70/10 - SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS - Details of absorbing elements characterised by the absorbing material
F24S 70/65 - Combinations of two or more absorbing elements
F24S 70/30 - Auxiliary coatings, e.g. anti-reflective coatings
A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube through the interior of which a heat medium can flow, wherein the infrared reflective layer in the solar heat collector tube is an Ag layer having Nb dispersed therein, the content of Nb being 0.1 at % to 31.8 at %.
A solar heat collector tube in which at least an infrared reflective layer, a sunlight-heat conversion layer and an anti-reflection layer are provided on the outer surface of a tube, through the interior of which a heat medium can flow, wherein the infrared reflective layer is an Ag layer in which silicon, silicon nitride or a mixture thereof is dispersed, and a method for producing the solar heat collector tube wherein the infrared reflective layer that is an Ag layer, in which silicon, silicon nitride or a mixture thereof is dispersed, is formed by sputtering in the presence of a gas including nitrogen gas, with Ag and silicon being used as targets.
This superconducting wire material is provided with a first wire material having a first superconducting material layer, a second wire material having a second superconducting material layer, and a superconducting material joining layer. A portion of the first wire material and a portion of the second wire material are joined via the superconducting material joining layer such that the first superconducting material layer and the second superconducting material layer overlap. A plurality of particles and/or a plurality of voids, both of which functioning as a pinning center, are dispersed within the superconducting material joining layer.
This superconducting wire material is provided with a first wire material containing a first superconducting material layer, a second wire material containing a second superconducting material layer, and a first superconducting material joining layer for joining the first superconducting material layer and the second superconducting material layer. The angular deviation between a first crystal axis of the first superconducting material layer and a third crystal axis of the second superconducting material layer is no larger than 10°. The angular deviation between a second crystal axis of the first superconducting material layer and a fourth crystal axis of the second superconducting material layer is no larger than 10°.
This superconducting wire material is provided with a first wire material having a first superconducting material layer, a second wire material having a second superconducting material layer, and a joining layer. At least a portion of the first superconducting material layer is disposed facing the second superconducting material layer. The joining layer joins the second superconducting material layer and said portion of the first superconducting material layer. The material composing the joining layer includes an oxide superconductor. A superconducting layer in which the first superconducting material layer, the joining layer, and the second superconducting material layer are stacked includes voids.
This environment resistant coating member 100 includes a SiC long fiber reinforced ceramic substrate 1 and an environment resistant coating layer 2 provided on a surface of the substrate 1. The environment resistant coating layer 2 has: a SiAlON bonded layer 21 laminated on the SiC long fiber reinforced ceramic substrate 1; a mullite layer 22 laminated on the SiAlON bonded layer 21; a reaction suppression layer 23 laminated on the mullite layer 22; and a graded layer 24 which has a composition that transitions from rare earth disilicate laminated on the reaction suppression layer 23 to rare earth monosilicate. The reaction suppression layer 23 is at least one layer among an alumina layer, a garnet layer, or a rare earth (mono)silicate layer, and if the reaction suppression layer 23 includes a plurality of layers, the layers are laminated in the above order from the mullite layer 22 toward the graded layer 24.
The present invention pertains to a sintering method for a ceramic for sintering, the method being characterized by: forming a carbon powder-containing layer on the surface of an article formed from a ceramic for sintering; and then, applying laser light onto the surface of the carbon powder-containing layer of the obtained laminate.
B28B 1/32 - Producing shaped articles from the material by applying the material on to a core, or other moulding surface to form a layer thereon by projecting, e.g. spraying
The present invention is a solar heat collection tube (1) in which at least an infrared reflective layer (3), a solar-thermal conversion layer (4), and an antireflection layer (5) are provided on the exterior surface of a tube (2) through which a heat medium can circulate internally. The solar heat collection tube (1) is characterized in that the infrared reflective layer (3) has a multilayer structure in which an Ag layer (7) is sandwiched between two metal protection layers (8), said Ag layer (7) having dispersed therein at least one metal (6) selected from the group consisting of Mo, W, Ta, Nb, and Al.
The present invention is: a solar heat collection tube (1) in which at least an infrared reflective layer (3), a solar-thermal conversion layer (4), and an antireflection layer (5) are provided on the exterior surface of a tube (2) through which a heat medium can circulate internally; and a production method therefor. The solar heat collection tube (1) is characterized in that the infrared reflective layer (3) is a Ag layer (7) in which silicon, silicon nitride, or a mixture (6) thereof is dispersed. In the production method for the solar heat collection tube (1), Ag and silicon are used as a target and the infrared layer (3) that is a Ag layer (7) in which silicon, silicon nitride, or a mixture (6) thereof is dispersed is formed by performing sputtering in the presence of a gas containing nitrogen gas.
The present invention is a solar heat collection tube (1) in which at least an infrared reflective layer (3), a solar-thermal conversion layer (4), and an antireflection layer (5) are provided on the exterior surface of a tube (2) through which a heat medium can circulate internally. The solar heat collection tube (1) is characterized in that the infrared reflective layer (3) is a Ag layer (7) having Nb (6) dispersed therein and the Nb (6) content is 0.1-31.8 at%.
A coating used in a vapor-oxidative atmosphere has a first layer including SIALON and a second layer covering the first layer and being exposed to the atmosphere, the second layer including mullite, wherein the first layer and the second layer get in contact with each other.
A method for producing an SiC crystal, comprising supplying a raw material gas containing Si, C and N to vapor-grow an N-doped SiC crystal on an SiC substrate, wherein the SiC substrate is an SiC substrate on which La, Ce or Ti is deposited in part or whole of the surface or an SiC substrate in which La, Ce or Ti ion is implanted into part or whole of the surface.
Provided is a structural body having a new shape and showing a garnet crystal structure. The structural body showing a garnet crystal structure is represented by LiaM1bM2cOd (5≤a≤8, 2.5≤b≤3.5, 1.5≤c≤2.5, 10≤d≤14, M1 is at least one element selected from Al, Y, La, Pr, Nd, Sm, Lu, Mg, Ca, Sr, or Ba, and M2 is at least one element selected from Zr, Hf, Nb, or Ta), wherein the structural body is characterized by the presence of, in a scanning electron microscope image obtained through observation of a fracture surface in the depth direction of the structural body, a striped pattern in the depth direction, and/or by the presence of, in a scanning electron microscope image obtained through observation of a section in the depth direction of the structural body, a continuous body formed in the depth direction.
C04B 35/50 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
Provided is a regeneration rotary kiln capable of reducing the proportion of combustible gas in waste gas and capable of reducing cost for generating superheated steam.
a) to supply heat for generating the superheated steam.
F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
F23G 7/12 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of plastics, e.g. rubber
F27B 7/20 - Rotary-drum furnaces, i.e. horizontal or slightly inclined - Details, accessories, or equipment peculiar to rotary-drum furnaces
F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals
F23G 5/20 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels with combustion in rotating or oscillating drums
F23G 5/16 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including supplementary heating including secondary combustion in a separate combustion chamber
F23G 5/033 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment comminuting or crushing
F27D 17/00 - Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
A coating which is used in a steam oxidizing atmosphere is provided with: a first layer including a sialon; and a second layer which coats the first layer, is exposed to the atmosphere, and includes mullite. The first layer and the second layer are in contact with each other, and coat a base material.
This solar heat collection tube (1) comprises: a tube (3) through the interior of which a heat medium (2) can flow; an infrared reflection layer (4) formed on an outside surface of the tube (3); a solar light/heat conversion layer (5) formed over the infrared reflection layer (4) and containing manganese silicide; and an antireflection layer (6) formed over the solar light/heat conversion layer (5). The manganese silicide used for the solar light/heat conversion layer (5) is preferably a semiconductor. According to this solar heat collection tube (1), solar light can be efficiently converted to heat.
The present specification provides a NOx responsive element suitable for directly sensing NOx. The NOx responsive element an oxygen ion conductive layer has a first electrode layer having a nitrogen oxide decomposition catalyst phase composed of perovskite-type oxide, being in contact with the oxygen ion conductive layer, and being exposed to NOx, and a second electrode layer opposing the first electrode layer across the oxygen ion conductive layer. The nitrogen oxide decomposition catalyst phase has a nitrogen oxide adsorption stabilizing surface on its surface exposed to nitrogen oxide.
C30B 7/06 - Single-crystal growth from solutions using solvents which are liquid at normal temperature, e.g. aqueous solutions by evaporation of the solvent using non-aqueous solvents
The invention addresses the problem of providing a recycling rotary kiln that can reduce the percentage of combustible gas contained in waste gas and that can reduce the cost to generate superheated steam. A recycling rotary kiln (1) is characterized by comprising: a superheated steam generating unit (2) that generates superheated steam; a pipe body (3) that can rotate about an axis and that has a heating section (A) in which a combustible gas (10G) is generated from a matrix resin by way of heating carbon fiber reinforced plastic (10) having a matrix resin and carbon fiber while supplying superheated steam and a carbon fiber (10S) is extracted from the carbon fiber reinforced plastic (10); a first combustion chamber (43a) that is disposed outside of the pipe body (3) and that heats the heating section (A) by combusting the gas (10G) introduced from the heating section (A); and a second combustion chamber (43b) that supplies heat for generating the superheated steam by way of combusting the gas (10G) introduced from the first combustion chamber (43a).
F23G 5/20 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels with combustion in rotating or oscillating drums
C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
F23G 5/033 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment comminuting or crushing
F23G 5/16 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including supplementary heating including secondary combustion in a separate combustion chamber
F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals
F27B 7/20 - Rotary-drum furnaces, i.e. horizontal or slightly inclined - Details, accessories, or equipment peculiar to rotary-drum furnaces
F27D 17/00 - Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
G02B 1/12 - Optical coatings produced by application to, or surface treatment of, optical elements by surface treatment, e.g. by irradiation
F24J 2/48 - characterised by the absorber material
F24J 2/00 - Use of solar heat, e.g. solar heat collectors (distillation or evaporation of water using solar energy C02F 1/14;roof covering aspects of energy collecting devices E04D 13/18;devices for producing mechanical power from solar energy F03G 6/00;semiconductor devices specially adapted for converting solar energy into electrical energy H01L 31/00;photovoltaic [PV] cells including means directly associated with the PV cell to utilise heat energy H01L 31/525;PV modules including means associated with the PV module to utilise heat energy H02S 40/44)
42.
PSEUDO-SUNLIGHT IRRADIATION DEVICE, PHOTO-IRRADIATION-INTENSITY MEASUREMENT DEVICE, AND HEAT-COLLECTOR-EFFICIENCY MEASUREMENT METHOD
A pseudo-sunlight irradiation device (10) having a pseudo-sunlight source (1) for emitting light, a concave mirror (2), an integrator lens (3), and a Fresnel lens (4). The concave mirror (2) point-focuses the light from the pseudo-sunlight source (1) toward the front. The integrator lens (3) is provided to the front of the pseudo-sunlight source (1), and scatters the light which was point-focused by the concave mirror (2) in a quadrangular-pyramid-shaped optical path. The Fresnel lens (4) line-focuses the light incident in the quadrangular-pyramid-shaped optical path from the integrator lens (3). The Fresnel lens (4) is equipped with a collimating lens (4a) for converting the light scattered in a quadrangular-pyramid shape from the integrator lens (3) into a parallel direction, and a cylindrical lens (4b) for line-focusing the light incident from the collimating lens (4a).
F24S 23/71 - Arrangements for concentrating solar rays for solar heat collectors with reflectors with parabolic reflective surfaces
F24S 23/74 - Arrangements for concentrating solar rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
The helium gas separator material includes a base portion and a gas separation portion joined to the base portion. The base portion is composed of a porous α-alumina material which has communication holes with an average diameter of 50 nm to 1,000 nm; the gas separation portion has a porous γ-alumina portion containing a Ni element and a silica membrane portion which is disposed on the inner wall of the communication holes in the porous portion; and the average diameter of pores surrounded and formed by the silica membrane portion is 0.27 nm to 0.60 nm.
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
B01D 67/00 - Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
The present invention is a solar-thermal conversion member containing chromium silicide of which the element ratio of Cr and Si is 1:1.6 to 1:4.7. The present invention is also a solar-thermal conversion laminate having a metal layer and a layer of the solar-thermal conversion member. The present invention is furthermore a solar-thermal conversion device provided with a light collector, a vessel and/or duct at which sunlight is collected by the light collector, and a thermal medium that is housed in the vessel and/or duct, the solar-thermal conversion member or solar-thermal conversion laminate being formed at the surface of the vessel and/or duct. The solar-thermal conversion member, the solar-thermal conversion laminate, and the solar-thermal conversion device can efficiently convert light into heat.
The purpose of the present invention is to provide a sintered object which contains cubic boron nitride and is excellent in terms of wear resistance and chipping resistance. The sintered object of cubic boron nitride comprises cubic boron nitride, a binder phase, and unavoidable impurities, wherein the binder phase comprises at least one element selected from the group consisting of Zr, Hf, V, Nb, Ta, Cr, Mo, and W and a composite solid-solution compound of Ti, the composite solid-solution compound having an NaCl structure and, in an examination by X-ray diffractometry conducted by the 2θ/θ method using a CuKα line, giving a diffraction line assigned to the (200) plane of the composite solid-solution compound, the diffraction line having a half-band width of 0.60°-0.90°.
C04B 35/583 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on borides, nitrides or silicides based on boron nitride
B23B 27/14 - Cutting tools of which the bits or tips are of special material
B23B 27/20 - Cutting tools of which the bits or tips are of special material with diamond bits
2 phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and, as a consequence, efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred ° C. The solar-thermal conversion member may therefore efficiently absorb sunlight, provide heat, and prevent thermal radiation due to thermal emission.
[Problem] To provide a NOx decomposition agent having an excellent NOx decomposition rate. [Solution] The NOx decomposition agent containing a perovskite oxide represented by ABx-1MxO3, wherein A represents one or more elements selected from the group consisting of La, Sr, Mg, Ca and Ba, B represents Mn, M represents a combination of one or more first metal elements selected from the group consisting of Ti, Zr, Hf, Nb, Ta, Cr, Mo, W and Ce, and one or two second metal elements selected from the group consisting of Ca and Mg, and x represents a number greater than or equal to 0 and less than 1.
The present invention addresses the issue of providing an optical selective film that contributes to efficiently converting light into heat. This optical selective film is characterized in that: the optical selective film includes at least an Ag-containing layer, and an Ag diffusion prevention layer that is disposed adjacent to the Ag-containing layer; and the Ag diffusion prevention layer contains FeSiX (X=1 to 2).
The present invention addresses the problem of providing a heat conversion member capable of efficiently converting light to heat. This heat conversion member is characterized in that it includes a composite material of at least one type of semiconductor and at least one type of metal material.
Provided is a ceramic material of an aluminum oxide group which has sufficient strength as well as sufficient other mechanical properties and in which there is very little shedding of particles by greatly reducing the particle size of aluminum oxide in a ceramic having aluminum oxide as the main phase. In this ceramic material, a second phase which comprises a compound carbonitride of Ti and Me which is represented by (Ti,Me)(C,N) (provided that Me is one type or two types or more of the group 3-11 transition elements) is dispersed at 0.05-19.5 volume% in a first phase having aluminum oxide as the main component.
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
51.
HELIUM GAS SEPARATOR MATERIAL AND METHOD FOR PRODUCING THE SAME
ABSTRACT The helium gas separator material includes a base portion and a gas separation portion joined to the base portion. The base portion is composed of a porous ct-alumina material which has communication holes with an average diameter of 50 nm to 1,000 nm; the gas separation portion has a porous y-alumina portion containing a Ni element and a silica membrane portion which is disposed on the inner wall of the communication holes in the porous portion; and the average diameter of pores surrounded and formed by the silica membrane portion is 0.27 nm to 0.60 nm. CA 2877621 2019-10-03
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
C04B 41/85 - Coating or impregnating with inorganic materials
A helium separator material comprises a base part and a gas separation part that is joined to the base part. The base part is composed of an α-alumina porous body which has continuous holes having an average diameter of 50 to 1,000 nm. The gas separation part has a γ-alumina porous part containing an Ni element and a silica membrane part formed on the inner walls of continuous holes in the porous part, wherein the average diameter of pores surrounded and formed by the silica membrane part is 0.27 to 0.60 nm.
B01D 53/22 - Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
C04B 35/10 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
C04B 41/85 - Coating or impregnating with inorganic materials
The main purpose of the present invention is to provide a CZTS-based compound semiconductor which has a band gap different from that of a conventional CZTS-based compound semiconductor and a photoelectric transducer using the same. The present invention pertains to: a CZTS-based compound semiconductor in which the ratio of the number of moles of Cu to the total number of moles of Cu, Zn and Sn is larger than that in Cu2ZnSnS4; and a photoelectric transducer using the CZTS-based compound semiconductor.
The solar-thermal conversion member includes a β-FeSiz phase material. The solar-thermal conversion member exhibits a high absorptance for visible light at wavelengths of several hundred nm and a low absorptance for infrared light at wavelengths of several thousand nm and as a consequence efficiently absorbs visible light at wavelengths of several hundred nm and converts the same into heat and exhibits little thermal radiation due to thermal emission at temperatures of several hundred °C. The solar-thermal conversion member can therefore efficiently absorb sunlight and provide heat and can prevent thermal radiation due to thermal emission.
The present invention provides a superhard alloy having excellent impact resistance and wear resistance. The superhard alloy is characterized by comprising a WC phase, a carbonitride phase comprising at least one carbonitride selected from the group consisting of both carbonitrides of at least one element selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, and W and solid solutions between these, and a binder phase comprising, as a main component, at least one element selected from the group consisting of Co, Ni, and Fe, the amounts of the WC phase, the carbonitride phase, and the binder phase being 55-94.8 vol.%, 1-30 vol.%, and 4.2-22.2 vol.%, respectively, of the whole superhard alloy, the sum of the WC phase, the carbonitride phase, and the binder phase being 100 vol.%. The superhard alloy is further characterized in that the WC phase has an average grain diameter of 0.05-0.8 µm and the carbonitride phase has an average grain diameter of 0.03-1.1 µm, and that the ratio of the density DB of the superhard alloy determined by a gas replacement method to the density DP of a powder obtained by pulverizing the superhard alloy to a size sufficient to enable the powder to pass through a sieve having an opening size of 75 µm, DB/DP, is 0.95 or higher.
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
C22C 19/07 - Alloys based on nickel or cobalt based on cobalt
56.
TUNGSTEN CARBIDE-BASED SINTER AND ABRASION-RESISTANT MEMBERS USING SAME
Provided are: a tungsten carbide-based sinter having a high grain growth inhibiting effect with respect to tungsten carbide, and having excellent chemical durability, such as corrosion resistance, in addition to mechanical strength; and abrasion-resistant members, such as heads for application tools, cutting blades, cutter blades, lens molds, and seal rings, which use the tungsten carbide-based sinter. The tungsten carbide-based sinter comprises a first phase composed primarily of tungsten carbide, and a second phase composed primarily of a carbonitride with one type or multiple types of elements selected from a group comprising Group 4 elements, Group 5 elements and Group 6 elements, wherein the volume fraction of the second phase is 0.01 percent by volume to less than 40 percent by volume, and the remainder is the first phase.
C04B 35/56 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxides based on carbides
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 29/08 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
57.
Substrate for fabricating superconductive film, superconductive wires and manufacturing method thereof
Provided is a substrate for superconductive film formation, which includes a metal substrate, and an oxide layer formed directly on the metal substrate, containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm. A method of manufacturing a substrate for superconductive film formation, which includes forming an oxide layer directly on a metal substrate, the oxide layer containing chromium oxide as a major component and having a thickness of 10-300 nm and an arithmetic average roughness Ra of not more than 50 nm.
In an upper die (1) which is a molding die for use in the molding of a resin, a mold release layer (4) is formed on the surface (8) of a base material (5) comprising a ZrO2-based ceramic material. The mold release layer (4) comprises a material exhibiting low adhesion to an object composed of a basic substance, a heat-curable resin or a moisture-containing substance. In the mold release layer (4), Zr4+ (which is a cation of a Group 4A element) and nitrogen are introduced into at least the surface of Y2O3. In at least the surface of the material exhibiting low adhesion, the amount of the cation of the Group 4A element is preferably more than 0 mol% and not more than 20 mol%, and the amount of nitrogen is preferably 0.01 to 10 mol% inclusive.
C04B 35/50 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
B29C 33/56 - Coatings; Releasing, lubricating or separating agents
International Superconductivity Technology Center, the Juridical Foundation (Japan)
FURUKAWA ELECTRIC CO., LTD. (Japan)
Japan Fine Ceramics Center (Japan)
Inventor
Miyata, Seiki
Fukushima, Hiroyuki
Kuriki, Reiji
Ibi, Akira
Yoshizumi, Masateru
Kinoshita, Akio
Yamada, Yutaka
Shiohara, Yuh
Yoshida, Ryuji
Kato, Takeharu
Hirayama, Tsukasa
Abstract
Provided is a substrate for super-conductive film formation. The substrate comprises a metal substrate and, formed directly on top of the metal substrate, an oxide layer of primarily chromium oxide having a layer thickness of 10 to 300 nm and a surface smoothness Ra of 50 nm or less. Also provided is a method for producing a substrate for super-conductive film formation, comprising a step for forming an oxide layer, which has a layer thickness of 10 to 300 nm and a surface smoothness Ra of 50 nm or less, directly on top of a metal substrate.
Disclosed is a hard powder containing much complex carbonitride solid solution, which improves sintering properties of a sintered hard alloy and enables the alloy to have a uniform structure. The hard powder contains not less than 90% by volume of a complex carbonitride solid solution represented by the following formula: (Ti1-x, Mx)(C1-y, Ny) [wherein M represents at least one element selected from the group consisting of W, Mo, Nb, Zr and Ta; x represents the atomic ratio of M relative to the total of Ti and M; y represents the atomic ratio of N relative to the total of C and N; and x and y respectively satisfy 0.05 ≤ x ≤ 0.5 and 0.01 ≤ y ≤ 0.75].
C01B 21/082 - Compounds containing nitrogen and non-metals
B23B 27/14 - Cutting tools of which the bits or tips are of special material
C22C 1/05 - Mixtures of metal powder with non-metallic powder
C22C 29/04 - Alloys based on carbides, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e. g. oxynitrides, sulfides based on carbides or carbonitrides based on carbonitrides
61.
STACK STRUCTURE FOR SOLID EXIDE FUEL CELL STACK, SOLID OXIDE FUEL CELL STACK, AND PRODUCTION METHOD FOR THE SAME
Provided is an SOFC stack having a stack structure which ensures the mechanical strength of the whole SOFCs without depending on the mechanical strength of each unit cell. The stack structure includes unit cells, separators, and seal portions. The unit cells are stacked. Each unit cell has a fuel electrode layer having a fuel electrode and an air electrode layer having an air electrode. The fuel electrodes of each unit cell are so disposed as to face each other across the sold electrolyte. The separators are disposed between the unit cells and separate the unit cells. The seal portions are provided in the fuel electrode layers and the air electrode layers, are equivalent to the separators or the solid electrolyte at least in the thermal expansion/contraction characteristic, and have nonporous parts integrated with the peripheries of the fuel electrode or the periphery of the air electrode and with the adjacent separator and solid electrolyte. A fuel gas and an air gas which are respectively supplied to the fuel electrode and the air electrode can flow.
H01M 8/12 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
62.
HEAT DISSIPATION STRUCTURE, PROCESS FOR PRODUCING THE HEAT DISSIPATION STRUCTURE, HEAT DISSIPATION DEVICE USING THE HEAT DISSIPATION STRUCTURE, DIAMOND HEAT SINK, PROCESS FOR PRODUCING THE DIAMOND HEAT SINK, HEAT DISSIPATION DEVICE USING THE DIAMOND HEAT SINK, AND HEAT DISSIPATION METHOD
NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY (Japan)
JAPAN FINE CERAMICS CENTER (Japan)
Inventor
Kawai, Chihiro
Kusunoki, Michiko
Norimatsu, Wataru
Abstract
Disclosed is a heat dissipation structure, which has high thermal conductivity, has low thermal contact resistance by virtue of excellent contact with the surface of a counter material, and can absorb a thermal stress generated between the heat dissipation structure and the counter material. The heat dissipation structure is produced by heating a substrate, in which a part or the whole of the substrate surface is formed of SiC, in vacuo to sublimate silicon and to form a layer of carbon nanotubes on the substrate surface. In particular, the layer of CNT is preferably a layer of a plurality of CNTs grown substantially perpendicularly to the substrate surface. The heat dissipation structure having CNTs on the outermost surface thereof has low thermal contact resistance with the counter material because fine front ends of CNTs come into contact with even fine concaves and convexes on the surface of the counter material without providing any space.
A channel layer (40) for forming a part of the carrier path between a source electrode (100) and a drain electrode (110) is formed on a drift layer (30). The channel layer (40) is composed of Ge granular crystals formed on the drift layer (30), and a cap layer covering the Ge granular crystals.
An upper side half (1) of a resin-shaping mold which bears both a cavity member (6) constituting the inner bottom face (5) of a cavity (4) and a surround member (7). The cavity member (6) is a low-adhesion material according to the present invention which is composed of a body (8) and a face (10) formed on the underside (9) of the body (8) that is to come into contact with a fluid resin. The body (8) is made of a material consisting of the first material 3YSZ and the second material ZrN at a prescribed ratio. The face (10) is made of Y2O3 exhibiting low adhesion to cured resins and has a lower thermal expansion coefficient than that of the body (8). The cavity member (6) is produced by joining the body (8) and the face (10) at high temperature and then cooling the obtained composite, whereby a compressive residual stress is generated in the face (10) owing to the difference in thermal expansion coefficient and remains in the face (10).
B32B 9/00 - Layered products essentially comprising a particular substance not covered by groups
B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
The surface (6) of a mold (1) for molding resins is made of a low-adhesion material (3) consisting of a solid solution, La-Y2O3, made from Y2O3 and another oxide, La2O3. La2O3 contains La having an ionic radius larger than that of Y3+ and therefore exhibits basicity stronger than that of Y2O3, while the low-adhesion material (3) has a prescribed La2O3 content based on the total amount of Y2O3 and La2O3. By virtue of these characteristics, the low-adhesion material (3) is reduced in the number of sites per unit area as compared with that of Y2O3 owing to the ionic radius and weakened in the binding strength for a basic substance owing to the basicity and maintains shape retentivity owing to the content. Thus, the surface (6) is made of a low-adhesion material (3) having lower adhesion than that of Y2O3 and excellent shape retentivity. The invention provides a low-adhesion material which has lower adhesion for a basic substance than that of Y2O3 and excellent shape retentivity and molds for molding resins which have excellent mold release properties and shape retentivity.
C04B 35/50 - Shaped ceramic products characterised by their composition; Ceramic compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
B29C 33/38 - SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING - Details thereof or accessories therefor characterised by the material or the manufacturing process
A technology for reducing the influence of a wave acting on an observation object when observation is carried out by causing a wave to act on the observation object. A plurality of waves having coherence are generated and the intensity of a wave acting on the observation object (SPC) is reduced to one half or less of the average intensity of waves at the position of the observation object by causing interference of the plurality of waves. At least one of the plurality of waves interacted with the observation object (SPC) is observed.