The embodiments of the present application provide a connecting pipe fitting of a fuel cell and a preparation method therefor, and a fuel cell module. According to the connecting pipe fitting of the fuel cell in the embodiment of the present application, due to the fact that a first pipe and a third pipe are each made of a high-temperature alloy and are directly joined through a second pipe made of an insulating material, a thickness of a diffusion layer in a joint part is small, and the chemical stability is high; the connecting pipe fitting has the characteristic of high-temperature sealing insulation and is simple in preparation technology; and even under long-term high-temperature operating conditions, no micro-cracks are formed in the joint part, thus achieving good high-temperature mechanical properties and solving the problem of point leakage when running for a long time, such that the technical problem of a poor sealing effect caused by welding and mechanical sealing of a connecting pipe fitting of a fuel cell in the prior art is effectively solved, and technical support is provided for the commercial application of a fuel cell system.
The present application relates to the field of fuel cells, and discloses a microcrystalline glass material for a fuel cell connecting component. The microcrystalline glass material is composed of crystallization phases and a glass phase, and the mass percentage content of the crystallization phases is greater than or equal to 30%; a main crystallization phase among the crystallization phases comprises at least one of akermanite, feldspar, olivine, clinokurchatovite, silicon dioxide, cerium dioxide, lanthanum aluminum borate, and lanthanum calcium borate. According to the present application, the composition and mass percentage of the main crystallization phase of the microcrystalline glass material are adjusted, and the mass percentage content of the crystallization phases of the microcrystalline glass material is adjusted, so that a connecting component having high-temperature, sealing and insulation characteristics is prepared; the connecting component does not have poor performance or point leakage and the like even if the connecting component operates for a long time under a high-temperature working condition. Therefore, the connecting component prepared from the microcrystalline glass material of the present application provides technical support for commercial application of a fuel cell system.
A ferrule assembly and a fiber optic fast connector comprising the same are provided. The ferrule assembly comprises a tailstock provided with a window portion, in which a supporting platform is provided, and having an end provided with an opening. A ferrule is provided, with a receiving cavity for receiving an optical fiber. The ferrule has one end passing through the opening and then abutting against and connecting with the supporting platform to constitute a stepped portion and provided with a groove portion, and has another end located outside of the tailstock. A pressing block is provided, comprising abutting against and connecting with the groove portion, an end handle portion abutting against and connecting with the stepped portion, and a flexible portion connected with the pressing portion and the end handle portion, respectively. A lock catch slidably sleeved on the tailstock is provided.
A ferrule assembly and an optical fiber quick connector having same. The ferrule assembly comprises a tailstock (1), a ferrule (2), a pressing patch (3) and a lock catch (4), wherein the tailstock (1) is provided with a window portion (101), and the window portion (101) is internally provided with a supporting platform (102); one end of the tailstock (1) is provided with an opening (103); the ferrule (2) is internally provided with an accommodation cavity (201) for accommodating an optical fiber; one end of the ferrule (2) passes through the opening (103) and then abuts against the supporting platform (102) to form a step portion (5), and the ferrule is provided with a recess portion (202); the other end of the ferrule (2) is located outside the tailstock (1); the pressing patch (3) comprises a pressing portion (301), a flexible portion (302) and a tail handle portion (303), the pressing portion (301) being connected to the recess portion (202) in an abutting manner, the tail handle portion (303) being connected to the step portion (5) in an abutting manner, and the flexible portion (302) being respectively connected to the pressing portion (301) and the tail handle portion (303); and the lock catch (4) is slidably sleeved on the tailstock (1).
Disclosed is a thick film resistance slurry, which comprises at least two among Ag powder, Pt powder, and Ag-Pt alloy powder; the Pt powder or the Ag-Pt alloy powder is at least one among honeycomb-shaped, flocculent, spherical, and spheroid-shaped; and the ratio of the lengths of the long axis and short axis of at least 90wt% Pt powder or Ag-Pt alloy powder within the Pt powder or the Ag-Pt alloy powder is: long axis:short axis = 1-3. Conductive phase components in the thick film resistance slurry of the present invention use Pt to replace Pd. Once Pt powder replaces Pd powder, the TCR of resistors below 100Ω/□ is lowered, and the objectives of reducing costs and improving the TCR performance can be achieved; and once Pt replaces the Pd powder, the short-term overload performance of the thick film resistance is ensured to be kept the same or made better.
H01B 1/22 - Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
H01C 7/00 - Non-adjustable resistors formed as one or more layers or coatingsNon-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
6.
ZIRCONIA COMPOUNDED ALUMINA CERAMIC SINTERED BODY, PREPARATION METHOD THEREFOR AND USE THEREOF
Disclosed are a zirconia compounded alumina ceramic sintered body, an alumina substrate comprising the sintered body, and a preparation method therefor. The sintered body comprises the following components by mass percentage content: 0.01-20% of a zirconium-containing compound (the content of which is calculated in the form of zirconia), 0-1.75% of a yttrium-containing compound (the content of which is calculated in the form of yttrium oxide), 0.01-0.8% of a silicone-containing compound (the content of which is calculated in the form of silicon oxide), 0-0.035% of a calcium-containing compound (the content of which is calculated in the form of calcium oxide), and 0-0.05% of a magnesium-containing compound (the content of which is calculated in the form of magnesium oxide), with the balance being alumina. The influence of a fluxing agent on the grain boundary strength and the phonon transfer rate is reduced by reducing the content of the fluxing agent. By controlling the initial particle size and the dispersion uniformity of ZrO2, the densification of a ZrO2 fluxed Al2O3 matrix is realized, and the mechanical strength and thermal conductivity of the alumina ceramic matrix are thus improved.
C04B 35/10 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on aluminium oxide
C04B 35/622 - Forming processesProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products
C04B 35/626 - Preparing or treating the powders individually or as batches
7.
CERAMIC COMPOSITE MIDDLE FRAME OF MOBILE TERMINAL AND MANUFACTURING METHOD THEREFOR
A ceramic composite middle frame of a mobile terminal and a manufacturing method therefor. The ceramic composite middle frame of the mobile terminal comprises a ceramic frame (1) and a metal middle plate (2), the ceramic frame (1) is connected to the metal middle plate (2) by means of a plastic framework (3), the metal middle plate (2) and the ceramic frame (1) are provided with lapping structures, two sides of the plastic framework (3) are provided with engagement structures, the engagement structure at one side of the plastic framework (3) is connected to the lapping structure of the ceramic frame (1), and the engagement structure at the other side of the plastic framework (3) is connected to the lapping structure of the metal middle plate (2). The ceramic composite middle frame is formed by performing in-mold injection molding on the ceramic frame (1) and the metal middle plate (2). The middle frame is sparkling and crystal-clear in appearance and is hard and durable, and can realize local metallization inside the ceramic frame (1) according to antenna design requirements, thereby facilitating antenna design and layout, and the middle frame has a good texture and effect as a whole.
The present invention discloses a guide pin, which comprises a base support layer (1) and a protective layer (2). The base support layer (1) is a rod-shaped structure. The protective layer (2) tightly wraps the surface of the base support layer (1). A manufacturing method for the guide pin made of various materials is also disclosed. The guide pin manufactured by the method of the present invention is not prone to bending or deformation and has good corrosion resistance and acid/alkaline resistance properties; it is wear resistant and has of extended service life; it is easy to be processed and is low in cost.
F16B 13/00 - Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
An antifouling substrate comprising: a substrate; a surface of the substrate having at least one functional area; at least a portion of the functional area having a coating; the functional area having a plurality of protrusions, the average height of the protrusions being 10-2000 nm, the average upper surface area of the protrusions being 78-1.964×105nm2, and the average spacing between adjacent protrusions being 1-5000 nm; the coating is made of a hydrophobic material. An antifouling substrate and a preparation method thereof, wherein the prepared antifouling substrate has better antifouling property and wear resistance, and the substrate has a number of options. The antifouling substrate obtained by the method can produce an antifouling substrate with spacing between the protrusions as low as 1 nm and greatly reduce the manufacturing cost of closely-spaced protrusions. The antifouling substrate and the protrusions are integrated, and the protrusion is not easily detached from the substrate, thus improving the wear resistance of the antifouling substrate.
Disclosed is an aureate ceramic, comprising a ceramic layer (40) and a colored layer (20), wherein the colored layer (20) comprises glass and a pigment. The aureate ceramic is formed by coating a ceramic substrate with the colored layer (20), and sintering and polishing same. Compared with existing aureate ceramics, the aureate ceramic not only has a smooth surface, a good color uniformity and a high chroma stability, but also has a high ceramic strength and hardness. In addition, further disclosed is a method for preparing the aureate ceramic.
Disclosed are an MT ferrule raw material and a preparation method therefor. Said ferrule raw material comprises the following components in mass percentage: 14.5%-35％ of polyphenylene sulfide, and 55%-85％ of an inorganic filler, wherein the inorganic filler is at least one of zirconium dioxide, silicon dioxide, alumina, iron oxide, zinc oxide and calcium carbonate. Regarding the defects of existing MT ferrule raw materials, the MT ferrule raw material prepared by the method of the present invention has better dimensional stability and a lower thermal expansion coefficient, and at the same time lower costs, and a longer service life.
A guide pin, comprising a base support layer (1) and a protective layer (2). The base support layer (1) is a rod-shaped structure. The protective layer (2) tightly wraps the surface of the base support layer (1). Also, a manufacturing method for the guide pin of various materials. The guide pin manufactured by employing the method is not prone to bending or deformation, has great properties in terms of corrosion resistance and acid/alkaline resistance, and is wear resistant, of an extended service life, easy to process, and inexpensive.
An electrochemical energy conversion device 10 comprising a stack of solid oxide electrochemical cells 12 alternating with gas separators 14, 16, wherein scavenger material selected from one or both of free alkali metal oxygen-containing compounds and free alkaline earth metal oxygen-containing compounds is provided in or on one or more of the positive electrode-side of the cell 12, the adjacent gas separator 14 and any other structure of the device 10 forming a gas chamber 64 between the cell and the gas separator. The invention also extends to the treated cell 12.
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
H01M 8/1231 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte with both reactants being gaseous or vaporised
H01M 8/0202 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/2432 - Grouping of unit cells of planar configuration
H01M 8/243 - Grouping of unit cells of tubular or cylindrical configuration
H01M 8/2435 - High-temperature cells with solid electrolytes with monolithic core structure, e.g. honeycombs
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/124 - 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
14.
Electrochemical energy conversion devices and cells, and negative electrode-side materials for them
An electrochemical energy conversion device 10 comprising a stack of solid oxide electrochemical cells 12 alternating with gas separators 14, 16, wherein scavenger material selected from one or both of free alkali metal oxygen-containing compounds and free alkaline earth metal oxygen-containing compounds is provided in or on one or more of the negative electrode-side of the cell 12, the adjacent gas separator 16 and any other structure of the device 10 forming a gas chamber 66 between the cell and the gas separator. The invention also extends to the treated cell 12.
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
H01M 8/1231 - Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte with both reactants being gaseous or vaporised
H01M 8/0202 - CollectorsSeparators, e.g. bipolar separatorsInterconnectors
H01M 8/04089 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
H01M 8/2432 - Grouping of unit cells of planar configuration
H01M 8/243 - Grouping of unit cells of tubular or cylindrical configuration
H01M 8/2435 - High-temperature cells with solid electrolytes with monolithic core structure, e.g. honeycombs
H01M 8/2425 - High-temperature cells with solid electrolytes
H01M 8/124 - 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
15.
ELECTROCHEMICAL ENERGY CONVERSION DEVICES AND CELLS, AND NEGATIVE ELECTRODE-SIDE MATERIALS FOR THEM
An electrochemical energy conversion device 10 comprising a stack of solid oxide electrochemical cells 12 alternating with gas separators 14, 16, wherein scavenger material selected from one or both of free alkali metal oxygen-containing compounds and free alkaline earth metal oxygen-containing compounds is provided in or on one or more of the negative electrode-side of the cell 12, the adjacent gas separator 16 and any other structure of the device 10 forming a gas chamber 66 between the cell and the gas separator. The invention also extends to the treated cell 12.
An electrochemical energy conversion device 10 comprising a stack of solid oxide electrochemical cells 12 alternating with gas separators 14, 16, wherein scavenger material selected from one or both of free alkali metal oxygen-containing compounds and free alkaline earth metal oxygen-containing compounds is provided in or on one or more of the positive electrode-side of the cell 12, the adjacent gas separator 14 and any other structure of the device 10 forming a gas chamber 64 between the cell and the gas separator. The invention also extends to the treated cell 12.
NAN CHONG THREE-CIRCLE ELECTRONICS CO., LTD (China)
Inventor
Xie, Chansheng
Yang, Shuangjie
Abstract
Disclosed is a rolling rotor (piston) type compressor, comprising a motor, a crankshaft (4) and a compression assembly which are arranged in a housing (1), wherein the compression assembly comprises a cylinder (5), a rolling rotor (7) located in the cylinder (5), a valve plate (8) and a valve plate spring (81); a spindle (41) of the crankshaft (4) is in transmission connection with a rotor (2) of the motor and an eccentric wheel of the crankshaft (4) is connected to the rolling rotor (7) therein; an end of the valve plate (8) is connected to the rolling rotor (7) and the other end thereof is connected to the valve plate spring (81); the rolling rotor (7) and the valve plate (8) are compression moulded by using a ceramic, adding more than one of modifiers Mg, Ti, Ca and carbon fibers to ceramic powder materials, sintering the ceramic at a high temperature and controlling the crystal size thereof and machining the sintered ceramic to form the ceramic rolling rotor (7) and valve plate (8). This compression assembly may have a very small gap, more resistance to wear, higher compression efficiency, and small thermal deformation, may not have a problem of high-temperature carbonization during working, and can avoid the assembly being thermally deformed and the carburization layer being worn and dropping off to jam the machine, so that the compression assembly has a longer life and is more energy-saving.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
NAN CHONG THREE-CIRCLE ELECTRONICS CO., LTD (China)
Inventor
Xiao, Jinglu
Huang, Zhuangchang
Guo, Xibin
Abstract
Provided is a method for preparing cerium oxide and zirconium oxide based composite rare earth oxide. The method comprises: (1) preparing a zircon salt solution; (2) prepare an activating agent solution by mixing urea and sulfuric acid or sulfate; (3) heating the zircon salt solution at a room temperature, dropwise adding the activating agent solution slowly, controlling the temperature rise speed to make the temperature raised to 60 degrees centigrade after the addition of the activating agent solution is finished, continuing to raising the temperature to 90 to 95 degrees centigrade, and keeping the temperature for 20-100min to form a basic zirconium sulfate composite salt precursor solution; (4) preparing soluble cerate and rare earth metal salt, adding the soluble cerate and the rare earth metal salt into the basic zirconium sulfate composite salt precursor solution, and performing precipitation by using a soluble hydroxide or ammonia solution; and (5) filtering and cleaning precipitates, and then, calcining the precipitates. Also provided is a cerium oxide and zirconium oxide based composite rare earth oxide prepared by using the method.
NAN CHONG THREE-CIRCLE ELECTRONICS CO., LTD (China)
Inventor
Sun, Jian
Chen, Shuoshuo
Abstract
A through ground cable comprises a cable core (1) consisting of multiple metal lines. The outer side of the cable core is wrapped by an internal protection layer (2). The outer surface of the internal protection layer is wrapped by a transition layer (3). The outer surface of the transition layer is wrapped by an external protection layer (4). The internal protection layer is a metal aluminum alloy layer. The transition layer is a metal-non-metal composite layer. The external protection layer is a ceramic layer or a ceramic-metal composite layer. Because the outer side of the cable core of the through ground cable is provided with three protection layers, protection is provided for the cable core; in this way, the ground cable has advantages of excellent anti-corrosion performance, anti-oxidation performance, high temperature resistant performance, high strength, environmental protection, and low cost.
NAN CHONG THREE-CIRCLE ELECTRONICS CO., LTD (China)
Inventor
Huang, Zhuangchang
Guo, Xibin
Abstract
Provided is a method for preparing a cerium oxide-zirconium oxide based composite rare-earth oxide, comprising: (1) heating a zirconium salt solution at room temperature, slowly adding sulphate ions, controlling the rate of the temperature increase, so that the temperature is increased to 90-95°C when the addition of sulphate ions is completed, and then maintaining the temperature for 20-100 minutes to form a zirconium basic sulphate composite salt precursor; (2) adding a cerium salt and a rare-earth metal salt to the precursor solution and stirring until uniform to obtain a slurry; (3) precipitating the slurry using a basic carbonate and/or a basic oxalate solution to obtain a precipitate; (4) filtering and washing the precipitate obtained in step (3), removing impurities, and calcining the washed precipitate. Also provided is a cerium oxide-zirconium oxide based composite rare-earth oxide prepared by the method.
Disclosed are methods for forming and abutting a two-piece suit of ceramic blister shell, comprising the following steps: a, forming a pair of ceramic blister shell blanks with the same shape, the blanks comprising: a cavity, a capillary tube provided at the end of the cavity, and a binding ring provided at the binding face of the blanks; b, pre-sintering the formed ceramic blister shell blanks to exhaust organic substances inside the ceramic blister shell blanks; c, binding the pre-sintered ceramic blister shell blanks together, and locally heating the binding area with a laser, melt sealing the two ceramic blister shell blanks together. The method is simple in process, reliable in the abutting manner, and the appearance of the abutting blank has no deformation, dislocation or air holes.
A high-performance optical-fiber fast termination component comprises a first ferrule body (1) and a second ferrule body (2) connected through a connecting piece (3). An inner hole is provided inside the first ferrule body (1) and the second ferrule body (2), respectively. A notch exposing the inner hole is provided at the central position of the second ferrule body (2). An interconnection platform (8) used for interconnecting an embedded optical-fiber (9) and an interconnecting optical-fiber (7) is formed at the notch. A pressing device used to press an optical-fiber interconnecting point (5) between the embedded optical-fiber (9) and the interconnection optical-fiber (8) is provided at the interconnection platform (8). The first ferrule body (1) and the second ferrule body (2) are implemented with ordinary ceramic ferrule bodies. The combination of the first ferrule body (1) and the second ferrule body (2) replaces ceramic ferrule bodies that require special fabrication, which not only guarantees that the high-performance optical-fiber fast termination component has desirable optical performance and high reliability, but also lowers the fabrication cost and enhances the universal performance of the high-performance optical-fiber fast termination component.
The present invention relates to the technical field of preparation of advanced ceramic materials, and meanwhile, to the technical field of optical communications, and in particular to a zirconia-based ceramic ferrule compositely doping with rare earth elements such as yttrium and cerium. By doping the rare earth elements such as yttrium and cerium to the zirconia-based ceramic ferrule, resistance to phase transformation of a zirconia material is enhanced, precise structure is achieved, reliability of a product is improved effectively, and notable features such as high connecting quality, fine anti-aging performance, high environmental adaptability and the like can be achieved. A field mounted optical fiber connector with the ferrule has the advantages: coaxial abutting of the optical fiber and better surface smoothness than a plastic product can be achieved, the problem that a scraping is easy to be generated by using the plastic material to connect is solved, anti-aging performance is fine, insertion wastage is low after optical fiber abutting, return loss is high, and connecting quality is fine.
C04B 35/48 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxides based on zirconium or hafnium oxides or zirconates or hafnates
C04B 35/50 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds
C04B 35/505 - Shaped ceramic products characterised by their compositionCeramic compositionsProcessing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on rare earth compounds based on yttrium oxide
G02B 6/38 - Mechanical coupling means having fibre to fibre mating means
24.
High performance quick terminal assembly for optical fiber
The present invention discloses a high performance quick terminal assembly for optical fiber, comprising a ferrule and an inner bore inside the ferrule. The inner bore is exposed after part of the cylinder body of the ferrule is cut away, forming a connecting platform. Pre-embedded optical fiber and connecting optical fiber are connected in the inner bore of the connecting platform, and the connecting platform is disposed with a pressing device to compress the connecting point of the two optical fibers. The invention uses high precision inner bore of the ceramic ferrule to replace the existing V-shaped groove. It can be easily, efficiently and effectively installed and is cost saving. Meanwhile excellent optical performance and high reliability are achieved. The problem related to various failure or badness of the prior art are resolved in the present invention.
A fuel cell stack comprising multiple arrays of one or more fuel cells, each comprising an electrolyte layer, an anode layer and a cathode layer; gas separator plates between adjacent fuel cells; and oxidant gas distribution passages and fuel gas distribution passages between adjacent fuel cells; and gas separators opening to the cathode layers and the anode layers, respectively, of the fuel cells. The fuel cell arrays comprise at least first stage fuel cell arrays having associated first fuel gas distribution passages to receive fuel gas from one or more fuel gas supply manifolds and second stage fuel cell arrays having associated second fuel gas distribution passages which receive fuel exhaust from the fuel cells of the first stage fuel cell arrays. The second stage fuel cell arrays are interleaved in the stack between first stage fuel cell arrays to improve thermal gradients. Other interleaving arrangements are possible.
A rapid optical fibre forming assembly, including an optical fibre docking device for the docking of a pre-buried optical fibre (2) and an accessible optical fibre (3), and further including a connection base (6), an optical fibre bending device and an optical cable bending device. The connection base (6) is provided therein with a through-hole. The optical fibre docking device is provided in the through-hole at one end of the connection base (6). The optical fibre bending device is plugged into the through-hole at the other end of the connection base (6). The optical fibre bending device is used for bending the accessible optical fibre (3). The tail end of the optical fibre bending device is provided with a first spring (9) for pushing against the optical fibre bending device. The rapid optical fibre forming assembly not only prevents insufficient docking due to different stretching or degradation of the docking device material but also prevents optical fibre breaking or docking disengagement caused by an external force pulling the optical fibre.
A fast termination assembly for optical fibre, comprising a mortise body (1) and internal holes located in the mortise body (1), wherein the internal holes emerge after the cylindrical body of the cut-away portion of the mortise body (1) forming an abutment platform (9), a pre-embedded optical fibre (2) and an abutting optical fibre (8) abut at the internal holes of the abutting platform (9), and a compressing structure is provided on the abutting platform (9) to compress the abutting points of the two optical fibres. Using ceramic mortise high-precision internal holes for abutment, the fast termination assembly for optical fibre supersedes the existing plastic V-shaped slot, and can not only bring convenient and fast installation, high efficiency and low installation costs, but also provides good optical performance and a high level of reliability.
A fast termination assembly for optical fibre, comprising a main body (1) and internal holes inside the main body (1). Two grooves (A, B) are provided on the main body and run up to the point where the internal holes emerge; the abutting end surfaces (8) of the optical fibre are located on the position of the internal holes between the two grooves (A, B); and the two grooves (A, B) are for filling with a matching gel (5). The two grooves (A, B) respectively prevent glue (4) fixing the pre-embedded optical fibre (2) from covering the abutting end surface (8) of the pre-embedded optical fibre thanks to capillary action and sufficient matching gel (5) for joining the abutting optical fibre (7) and pre-embedded optical fibre (2) is pre-set to eliminate Fresnel reflections. Using a mortise body with a high-precision internal hole tubing bundle to join the optical fibres makes the optical fibres abut coaxially, thereby achieving fast termination of the optical fibre in the field. The two grooves (A, B) are sealed using a sealing ring (3) muff-coupled on the mortise body, preventing the matching gel (5) from volatilizing or becoming polluted, ensuring that the product can be used and will not fail in harsh environmental conditions.
A two-dimensional optical fiber array carrying a collimating lens, comprising a plurality of inserting cores (2) arranged in an array, and optical fibers (3) inserted in the inserting cores (2); the optical fibers (3) extend to the ends of the inserting cores (3), and the optical fibers (3) are fixedly sealed with the inserting cores (2); each inserting core (2) is encapsulated with a micro-lens (1) on the end; the focus of the micro-lens (1) coincides with the end surface of the end of the inserting core (2); a tiny stage is arranged at the focus of the micro-lens (1); a boss is arranged at the end surface of the end of the inserting core (2); and the tiny boss is pressed into the tiny stage. The present invention has the advantages of interval error, small focal length error and consistent light-emitting direction.
A ceramic packaging base having convex platforms is provided, which includes a packaging base body(1) and multiple supporting convex platforms(2,3) provided on the packaging base body(1), wherein, parts of supporting convex platforms are insulating convex platforms (3), and other parts of supporting convex platforms are metallic convex platforms (2). The insulating convex platforms (3) are made of ceramic material formed on the packaging base body (1) by printing process. Using the ceramic packaging base, stack of ceramic layers can be effectively decreased and electrical performance can be effectively improved.
A ceramic packaging base board comprises a packaging substrate (1), a circuit layout layer printed on the substrate (1) and a fixed packaging layer. The circuit layout layer comprises at least one metallic paste region (3), and at least one compensated metallic paste region (4) corresponding to the metallic paste region (3) disposed on the blank region (2) where the metallic paste region (3) does not exist. By adding a compensated metallic paste region symmetrical to the metallic paste region, it is possible to reduce the mechanical strength and efficiently improve the distortion of the base board.
A multi-core optical fiber ferrule body for air-tight packaging of optical switch comprises a plurality of tubular optical fiber ferrules (1). The optical fiber ferrules (1) are arranged closely in radial direction, where axial lines of the optical fiber ferrules (1) are parallel to each other. The adjacent optical fiber ferrules (1) are sealed by glass (2) to achieve a fixed connection and sealing. The multi-core optical fiber ferrule body can effectively improve the sealing effect and reduce the sealing cost. The optical switch using the multi-core optical fiber ferrule body can achieve that the coupling of the internal optical path is adjustable, and the external optical input/output port realizes total sealing of the optical switch in the final packaging, thus increasing running reliability of the optical switch.
G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
33.
Solid oxide fuel cell or solid oxide fuel cell sub-component and methods of preparing same
A solid oxide fuel cell (SOFC) or SOFC sub-component comprising a YSZ solid oxide electrolyte layer (10), a LSCF cathode layer (14) and a mixed phase layer (18) comprising at least zirconia and ceria between the electrolyte layer and the cathode layer, with the cathode layer in direct contact with the mixed phase layer, that is with no ceria, other than in the mixed phase layer, between the cathode layer and the electrolyte layer. One method of forming the SOFC or sub-component comprises applying a layer of ceria on the electrolyte layer (10), heating the electrolyte and ceria layers to form the mixed phase layer (18), and removing excess ceria from the surface of the mixed phase layer before applying the cathode layer (14).
A method of generating steam by heating water in a steam generator comprising a plurality of steam generating channels, wherein water is supplied at a constant rate to each steam generating channel through respective water supply lines, and wherein a sufficient pressure drop is provided across each water supply line in order to prevent flow reversal in the plurality of steam generating channels.
A solid oxide fuel cell comprising a solid oxide electrolyte layer, a cathode layer on a cathode side of the electrolyte layer and an anode layer on an anode side of the electrolyte layer, and wherein a hydrocarbon reforming layer is also disposed on the anode side of the electrolyte layer, said hydrocarbon reforming layer having a composition different from that of the anode layer and comprising a catalyst for promoting a hydrocarbon steam reforming reaction and a component, or a precursor of such a component for alleviating carbon deposition on the hydrocarbon reforming layer.
