Abstract:
A method of manufacturing a composite material, the method comprising: (i) providing a ceramic powder comprising ceramic agglomerates, the agglomerates having an intra-agglomerate void volume space; (ii) providing a polymer; (iii) mixing the polymer with the ceramic powder to form a mixture comprising the agglomerates at least partially impregnated with the polymer, wherein the volume of polymer in the mixture is at least 80% of the total intra-agglomerate void volume space, but less than 130% of the total intra-agglomerate void volume space; (iv) optionally shaping the mixture to form a preform; (v) and treating the mixture to provide ceramic agglomerates which are at least partially impregnated with solid polymer.
Abstract:
A moldable heat insulating composition, a shaped heat insulator using the composition, and a method for manufacturing the heat insulator are disclosed. The composition can provide a heat insulator with heat resistance and heat insulating ability against a thermal equipment elevating to high temperatures thanks to high heat insulating ability of silica aerogel, and attachable to complicated shaped equipments. The composition comprises (A) silica aerogel having a porosity of 60% or more, (B) starting material liquid for forming a ceramic crystal via hydrothermal reaction (starting material liquid for hydrothermal synthesis), (C) surfactant, and (D) reinforcing fiber.
Abstract:
Thin film composite electrolyte structures are disclosed that are preferably ionically conductive but not electronically conductive and are therefore suitable for use in electrochemical cells, such as secondary batteries based on sodium and sulfur. Vehicles including the electrochemical cells are also disclosed.
Abstract:
Molten grains include titanium suboxides of the formulation TinO2n-1, in which the phases are principally Ti5O9 or Ti6O11 or a mixture of these two phases, the phases Ti5O9 and/or Ti6O11 representing, in total, more than 60% of the weight of the grains, the grains further including less than 30% by weight of Ti4O7.
Abstract translation:熔融颗粒包括制剂TinO2n-1的低价低氧化物,其中相主要是Ti 5 O 9或Ti 6 O 11,或这两相的混合物,Ti5O9和/或Ti6O11相的总和大于60重量% 晶粒,进一步包含少于30重量%的Ti 4 O 7。
Abstract:
A method for preparing ceramic powders in the presence of a carbon powder including a step which consists in homogenizing a mixture of particles capable of resulting in a ceramic by heat treatment. Said method can be carried out in the presence of an accelerated solvent and provides, at reduced energy consumption, carbon-coated ceramic powders and then ceramics.
Abstract:
The present invention is a process for producing an aluminum titanate-based ceramics comprising a step of firing a starting material mixture containing a titanium source powder, an aluminum source powder, and a copper source.
Abstract:
A multiphase thermoelectric material includes a titania-based semiconducting phase and a half-metal conducting phase. The multiphase thermoelectric material is advantageously a nanocomposite material wherein the constituent phases are uniformly distributed and have crystallite sizes ranging from about 10 nm to 800 nm. The titania-based semiconducting phase can be a mixture of sub-stoichiometric phases of titanium oxide that has been partially reduced by the half-metal conducting phase. Methods of forming a multiphase thermoelectric material are also disclosed.
Abstract:
A porous sintered compact of titanium oxide of the present invention is characterized in that it has a porosity of 20 to 65% and a hardness of 60 (HV) or higher, or characterized in that it has a porosity of 20 to 65%, a specific surface area of 0.1 to 5.0 m2/cm3, a volume ratio of pores with 0.3 to 100 μm diameter to be 10% or higher to the total pore volume and a hardness of 60 (HV) or higher. Using this porous sintered compact as an electrolytic raw material in the method in which titanium oxide is reduced by electrolysis with an electrolyte composed of a molten salt enables efficiently obtaining metallic titanium. The electrolytic process using a molten salt is attracting attention as a process capable of directly obtaining metallic titanium from titanium oxide with lower cost than in conventional processes, and the employment of the above porous sintered compact would promote its realization remarkably.
Abstract translation:本发明的多孔氧化钛烧结体的特征在于,其孔隙率为20〜65%,硬度为60(HV)以上,或其特征在于其孔隙率为20〜65%,a 比表面积为0.1〜5.0μm2 / cm 3,直径为0.3〜100μm的孔的体积比为总孔体积的10%以上, 硬度为60(HV)以上。 在使用由熔融盐构成的电解质进行电解而还原氧化钛的方法中,使用该多孔质烧结体作为电解原料能够有效地得到金属钛。 使用熔融盐的电解方法作为能够以比常规方法更低成本从钛氧化物直接获得金属钛的方法引起注意,并且使用上述多孔烧结体将显着地促进其实现。
Abstract:
Molten grains include titanium suboxides of the formulation TinO2n-1, in which the phases are principally Ti5O9 or Ti6O11 or a mixture of these two phases, the phases Ti5O9 and/or Ti6O11 representing, in total, more than 60% of the weight of the grains, the grains further including less than 30% by weight of Ti4O7.
Abstract:
Doped and partially-reduced oxide (e.g., SrTiO3-based) thermoelectric materials. The thermoelectric materials can be single-doped or multi-doped (e.g., co-doped) and display a thermoelectric figure of merit (ZT) of 0.2 or higher at 1050K. Methods of forming the thermoelectric materials involve combining and reacting suitable raw materials and heating them in a graphite environment to at least partially reduce the resulting oxide. Optionally, a reducing agent such as titanium carbide, titanium nitride, or titanium boride can be incorporated into the starting materials prior to the reducing step in graphite. The reaction product can be sintered to form a dense thermoelectric material.