摘要:
Methods, systems, and processes are used to prepare novel ceramic composite structures that are strong, durable, light-weight, high performance and suitable for a myriad of industrial applications. The low manufacturing costs of the processes disclosed provide cheaper, faster ways of producing ceramic matrix composites at lower temperatures and allow for the existence of composite materials and structures which currently are not available.
摘要:
A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.
摘要:
Methods and apparatuses for additive manufacturing are described. A method for additive manufacturing may include exposing a layer of material on a build surface to one or more projections of laser energy including at least one line laser having a substantially linear shape. The intensity of the line laser may be modulated so as to cause fusion of the layer of material according to a desired pattern as the one or more projections of laser energy are scanned across the build surface.
摘要:
본 발명은 이차전지의 음극재에 관한 것으로, 특히 실리콘 산화물을 이용한 이차전지 음극재와 이를 제조하는 방법에 관한 것이다. 본 발명은 실리콘 산화물(SiOx)과 탄소재를 준비하고, 상기 실리콘 산화물(SiOx)과 탄소재를 혼합하여, SiOx-C 복합상을 형성한 다음, 열처리하여 제조되는 이차전지 음극재를 제공한다.
摘要翻译:二次电池用阴极材料及其制造方法技术领域本发明涉及二次电池用阴极材料及其制造方法。 提供了通过制备氧化硅(SiO x)和碳材料制备的二次电池正极材料,将SiO x和碳材料混合以形成SiO x -C复合相,并且对SiO x -C复合相进行热处理。
摘要:
A composition having nanoparticles of a refractory-metal carbide or refractory-metal nitride and a carbonaceous matrix. The composition is not in the form of a powder. A composition comprising a metal component and an organic component. The metal component is nanoparticles or particles of a refractory metal or a refractory-metal compound capable of decomposing into refractory metal nanoparticles. The organic component is an organic compound having a char yield of at least 60% by weight or a thermoset made from the organic compound. A method of combining particles of a refractory metal or a refractory-metal compound capable of reacting or decomposing into refractory-metal nanoparticles with an organic compound having a char yield of at least 60% by weight to form a precursor mixture.
摘要:
A method of fabricating silicon carbide powder according to the embodiment comprises the steps of preparing a mixture by mixing a silicon source comprising silicon, a silicon carbide source and a carbone source comprising at least one of a solid carbon and a organic compound; and reacting the mixture.
摘要:
A membrane electrode assembly (MEA) for a fuel cell comprising a catalyst layer and a method of making the same. The catalyst layer can include a plurality of catalyst nanoparticles, e.g., platinum, disposed on buckypaper. The method can include the steps of placing buckypaper in a vessel with a catalyst-precursor salt and a fluid. The temperature and pressure conditions within the vessel are modified so as to place the fluid in the supercritical state. The supercritical state of the supercritical fluid containing the precursor salt is maintained for period of time to impregnate the buckypaper with the catalyst-precursor salt. Catalyst nanoparticles are deposited on the buckypaper. The supercritical fluid and the precursor are removed to form a metal catalyst impregnated buckypaper.
摘要:
Die vorliegende Erfindung betrifft ein Verbundmaterial enthaltend Partikel eines Lithiumübergangsmetallphosphats und Kohlenstoff mit einem Kohlenstoffgehalt von ≤ 1,4 Gew.-%. Weiter betrifft die vorliegende Erfindung eine Elektrode enthaltend das Verbundmaterial und eine Sekundärlithiumionenbatterie enthaltend eine Elektrode umfassend das Verbundmaterial.
摘要:
A method of forming a polycrystalline diamond comprises derivatizing a nanodiamond to form functional groups, and combining the derivatized nanodiamond with a microdiamond having an average particle size greater than that of the derivatized nanodiamond, and a metal solvent-catalyst. A polycrystalline diamond compact is prepared by adhering the polycrystalline diamond to a support, and an article such as a cutting tool may be prepared from the polycrystalline diamond compact.
摘要:
The present invention is directed to ceramic articles containing processed carbon nanotubes (preferably graphene nanoribbons resulting from subjecting nanotubes to pressure and/or temperature) and to a method for making such articles including mixing ceramic material (preferably alumina M) and nanotubes, and processing the mixture so that nanotubes become transformed material T.