摘要:
Composite nano- and micromaterials and methods of making and using same. The composite materials comprise crystalline materials (e.g., binary and ternary vanadium oxides) in an amorphous or crystalline material (e.g., oxide, sulfide, and selenide materials). The materials can be made using sol-gel processes. The composite materials can be present as a film on a substrate. The films can be formed using preformed composite materials or the composite material can be formed in situ in the film forming process. For example, films of the materials can be used in fenestration units, such as insulating glass units deployed within windows.
摘要:
An apparatus for making a composite article includes a monofilament feed track adapted to carry a spaced array of ceramic monofilament strands, a fiber yarn feed track adapted to carry a spaced array of fiber yarn tows impregnated with a plurality of glass particulates, a mandrel, and a heater assembly. The mandrel is adapted to wind together individual glass-impregnated fiber yarn strands and individual ceramic monofilament strands to form a dual-fiber weave. The heater assembly is adapted to heat at least the glass particulates such that pressure from the wound array of ceramic monofilaments is sufficient to consolidate the glass particulates and the dual-fiber weave into a dual-fiber ceramic matrix composite (CMC).
摘要:
Disclosed is a paste composition which enables to adequately obtain a desired BSF effect without lowering the mechanical strength or adhesion of an electrode (8) even when a silicon semiconductor substrate (1) is thin. This paste composition also enables to suppress deformation (warping) of the silicon semiconductor substrate (1) after firing. Also disclosed are an electrode (8) formed by using such a paste composition, and a solar cell device comprising such an electrode (8). Specifically disclosed is a paste composition for forming an electrode on a silicon semiconductor substrate (1) which contains an aluminum powder, an organic vehicle, and a whisker which is insoluble or poorly soluble in the organic vehicle. The whisker is mixed with the aluminum powder and the organic vehicle in advance. Also specifically disclosed is a solar cell device comprising an electrode (8) which is formed by applying such a paste composition on a silicon semiconductor substrate (1) and then firing the applied paste composition.
摘要:
This invention relates to a process which produces flat, distortion-free, zero-shrink, low-temperature co-fired ceramic (LTCC) bodies, composites, modules or packages from precursor green (unfired) laminates of three or more different dielectric tape chemistries that are configured in an uniquely or pseudo-symmetrical arrangement in the z-axis of the laminate.
摘要:
The invention relates to a composite material which includes a ceramic body incorporating ceramic particles bonded in a glass matrix and which is reinforced by continuous metal fibres configured to provide tensile constraint within the material. The invention also relates to processes of casting, fuse-casting and forming such a composite. The invention further relates to armour and building material formed from the composite material.
摘要:
Disclosed is a paste composition which enables to adequately obtain a desired BSF effect without lowering the mechanical strength or adhesion of an electrode (8) even when a silicon semiconductor substrate (1) is thin. This paste composition also enables to suppress deformation (warping) of the silicon semiconductor substrate (1) after firing. Also disclosed are an electrode (8) formed by using such a paste composition, and a solar cell device comprising such an electrode (8). Specifically disclosed is a paste composition for forming an electrode on a silicon semiconductor substrate (1) which contains an aluminum powder, an organic vehicle, and a whisker which is insoluble or poorly soluble in the organic vehicle. The whisker is mixed with the aluminum powder and the organic vehicle in advance. Also specifically disclosed is a solar cell device comprising an electrode (8) which is formed by applying such a paste composition on a silicon semiconductor substrate (1) and then firing the applied paste composition.
摘要:
A glass ceramic composition for sealing adjacent metal cassettes in an SOFC stack. The seal composition comprises an alumina-silicate glass ceramic matrix and a ceramic fiber aggregate dispersed in the matrix. Preferably, the fiber is selected from the group consisting of zirconium oxide fiber, alumina fiber, and combinations thereof. Preferably, the fiber is present at 1-60 weight percent with respect to the weight of glass ceramic, preferably about 30 weight percent. Preferably, the zirconia is stabilized by up to about 10% yttria. Alumina fiber may substitute for a portion of the zirconia fiber. Preferably, a green seal is die cut from a green tape sheet formed by extrusion of a slurry comprising water and a latex binder. The green seal is sintered during the final SOFC stack assembly process to form the final stack seal.
摘要:
It is an object of the present invention to provide an inorganic fiber article that has low particle generating properties, high heat insulation properties and an improved durability. The inorganic fiber article according to the present invention is an inorganic fiber article comprising an inorganic coating layer having foams, the inorganic coating layer formed on at least a portion of the surface of an inorganic fiber molded body
摘要:
A refractory material comprising a strontium aluminate refractory fibre and an inorganic binder comprises when fired greater than 35wt% strontium oxide and/or Al2O3 = aluminium oxide content of strontium aluminate fibre ± 65wt%, SiO2 = silicon oxide content of strontium aluminate fibre ± 20wt%
摘要:
L'objet de l'invention est un procédé d'élaboration d'un matériau d'interphase à partir d'oxydes présentant des porosités, prévu pour être disposé entre un matériau de renfort céramique, notamment des fibres, et une matrice verre, céramique ou vitrocéramique, caractérisé en ce qu'il consiste à : choisir une composition sensiblement identique à celle de la matrice et/ou du matériau de renfort, en sorte de limiter la diffusion et de disposer de coefficients de dilatation sensiblement identiques mais ayant une température de fusion supérieure à celle de la matrice, ajouter à ladite composition un auxiliaire générateur de porosité,
dépose de ladite composition sur le matériau de renfort.
L'invention couvre aussi le matériau obtenu, le procédé de traitement d'une fibre céramique de renfort avec ce matériau d'interphase et le procédé fabrication d'un matériau thermostructural associé.