摘要:
Refractory compositions and methods of forming articles therefrom are provided that include a plurality of aggregate particles and a binder intermixed with the aggregate particles. The binder composition includes sintered crystalline chromium metaphosphate or chromium-aluminum metaphosphate, or combinations of the two distributed in the binder. The provided compositions are free of chromium oxide yet exhibit excellent slag resistance and are easily disposed of.
摘要:
A composition including (a) a lithiated oxide of transition metals containing at least nickel, cobalt and aluminum and (b) a lithiated phosphate of at least one transition metal, the surface of which is at least partially covered by a layer of carbon. In the composition, the proportion by mass of the lithiated oxide of transition metals containing at least nickel, cobalt and aluminum is less than or equal to 10% of the weight of the composition, and the proportion by mass of the lithiated phosphate of at least one transition metal is greater than or equal to 90% of the weight of the composition. A lithium-ion or lithium-polymer type accumulator including at least one positive electrode containing this composition.
摘要:
A sintering composition and calcined object which are precursors for a sintered zirconia. The burned surface of the sintered zirconia gives an X-ray diffraction pattern in which the ratio of the height of the peak present around the location where a [200] peak assigned to the cubic system is to appear to the height of the peak present around the location where a [200] peak assigned to the tetragonal system is to appear is 0.4 or more, and a region located at a depth of 100 μm or more from the burned surface gives an X-ray diffraction pattern in which the ratio of the height of the peak present around the location where a [200] peak assigned to the cubic system is to appear to the height of the peak present around the location where a [200] peak assigned to the tetragonal system is to appear is 0.3 or less.
摘要:
A sintered calcium sulfate ceramic material includes a plurality of major grains of calcium sulfate solid solutions, and a plurality of reaction grains located at boundaries of the major grains. Each of the reaction grains may be selected from the group consisting of calcium silicate and calcium phosphate. A. sinterable calcium sulfate ceramic material consisting of calcium sulfate and a sintering additive is also provided. The sintering additive comprises silica (SiO2).
摘要:
A method of making an object using mold casting, comprising the steps of applying a slip mixture into a mold fabricated by 3D printing or additive manufacturing technique, and firing the mold containing the slip mixture. A composition of a slip mixture for use with a mold fabricated by 3D printing or additive manufacturing technique, the composition comprising calcium aluminate, from 10% to 60% by weight, and a filler. Such method and composition can provide efficient and economically viable ways of fabricating objects having complex shapes and high density.
摘要:
Provided is a high-strength zirconia sintered body in which the progression of low-temperature degradation is inhibited. The zirconia sintered body contains partially-stabilized zirconia as a matrix phase and contains at least one element from among phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi). The content of the abovementioned element(s) in the zirconia sintered body ranges from 4×10−4 mol to 4×10−2 mol with respect to 1 mol of zirconium(IV) oxide. Preferably, the zirconia sintered body further contains 0.03% to 3% by mass of silicon dioxide.
摘要:
Disclosed is a composition for ferroelectric thin film formation which is used in the formation of a ferroelectric thin film of one material selected from the group consisting of PLZT, PZT, and PT. The composition for ferroelectric thin film formation is a liquid composition for the formation of a thin film of a mixed composite metal oxide formed of a mixture of a composite metal oxide (A) represented by general formula (1): (PbxLay)(ZrzTi(1-z))O3 [wherein 0.9
摘要翻译:公开了用于形成选自PLZT,PZT和PT的一种材料的铁电薄膜的铁电薄膜形成用组合物。 铁电薄膜形成用组合物是由通式(1)表示的复合金属氧化物(A):(PbxLay)(ZrzTi(Zr x Ti y))的混合物形成的混合复合金属氧化物的薄膜的液体组合物, 1)表示的复合氧化物(B)或羧酸(B),通式(2)表示的化合物(其中0.9
摘要:
A process for the synthesis of a bioceramic composition comprising calcium phosphosilicate (CPS, Ca10(PO4)4(SiO4)2), the process comprising: providing calcium or a calcium-containing compound, a phosphorus-containing compound and a silicon-containing compound; and forming a precipitate by reacting the compounds in an aqueous phase at an alkali pH.
摘要:
A process for manufacturing indium tin oxide (ITO) sputtering targets as described. The process includes the precipitation of indium and tin hydroxides, sintering in the absence of chloride ions, using the resultant oxide powders to prepare an aqueous slip with dispersing agent, binder, special high density promoting agents and compacting the slip in a specially surface coated porous mold using the method of slip casting followed by sintering the resultant compacted target body to yield high density ITO target.
摘要:
The group of inventions relates to the refractory materials industry, in particular to the production of refractory high-strength nonconductive articles of corundum and silicon carbide concretes on an aluminophosphate binder. The objective of the proposed group of inventions is to provide shaped thermoinsulative and thermoconductive concretes based on an aluminophosphate binder with high strength characteristics, enabling the concretes to be used as building and construction materials operating at high temperatures. According to the first variant, the thermoinsulative concrete based on an aluminophosphate binder includes a phosphate binder and a mixture, wherein orthophosphoric acid is used in a concentration of 65-75% as phosphate binder and a mixture of different fractions of 25A grade electrocorundum is used as the mixture. According to the second variant, the thermoconductive concrete based on an aluminophosphate binder comprises a phosphate binder and a mixture, wherein orthophosphoric acid in a concentration of 65-75% is used as phosphate binder, a mixture of 25A grade electrocorundum of 220 fraction and a mixture of 53C grade silicon carbide is used as an additional mixture. The technical result is high strength characteristics, enabling the concretes to be used as building and construction materials operating at high temperatures.