Abstract:
A porous inorganic additive manufactured article that is comprised of at least two layers of inorganic particulates bound together by a carbon binding phase throughout. The additive manufactured article may be formed by additive manufacturing using a mixture comprised of an organic reactive material and inorganic particulates, wherein the organic reactive material is subsequently reacted to form a thermoset material that forms carbon upon heating that binds the inorganic particulates together to form the porous inorganic additive manufactured article. The porous inorganic additive manufactured article may then be infiltrated with a liquid that is solidified to form a composite article or may be further heated in a differing atmosphere to form a further sintered or reacted porous inorganic article.
Abstract:
Thermoelectric materials based on tetrahedrite structures for thermoelectric devices and methods for producing thermoelectric materials and devices are disclosed.
Abstract:
A hard material which, when used as a material of a sintered material, makes it possible to obtain a sintered material with excellent abrasion resistance, a sintered material, a cutting tool including the sintered material, a method for manufacturing the hard material and a method for manufacturing the sintered material are provided. The hard material contains aluminum, nitrogen, and at least one element selected from the group consisting of titanium, chromium, and silicon, and has a cubic rock salt structure.
Abstract:
Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond compact includes at least saturating a sintering aid material with non-diamond carbon to form a carbon-saturated sintering aid material and sintering a plurality of diamond particles in the presence of the carbon-saturated sintering aid particles to form a polycrystalline diamond table.
Abstract:
A brake disc manufactured by a method of manufacturing a brake disc according to the present invention includes a carbon fiber Cf, silicon Si, silicon carbide Sic, and a silicon-copper alloy SixCuy. The carbon fiber Cf, silicon Si, carbon C, and silicon carbide SiC make a disc light and provide high thermal shock resistance, anti-oxidation, wear resistance, strength, and friction coefficient. The copper Cu and silicon-copper alloy SixCuy increase heat capacity at constant volume of a disc, so a large increase in temperature of the disc is prevented and a changing range of the friction coefficient is reduced in braking. Accordingly, the brake disc according to the present invention has all of the advantage of a brake disc made of a carbon fiber-reinforced ceramic composites without thermal deformation and deterioration of a pad, a hat part, and a caliper.
Abstract:
The present invention provides a Cu—In—Ga—Se powder containing Cu, In, Ga and Se in which cracks do not occur during sintering or processing, and a sintered body and sputtering target, each using the same. The present invention relates to a powder containing Cu, In Ga and Se, which contains a Cu—In—Ga—Se compound and/or a Cu—In—Se compound in an amount of 60 mass % or more in total. The powder of the present invention preferably contains an In—Se compound in an amount of 20 mass % or less and/or a Cu—In compound in an amount of 20 mass % or less.
Abstract:
The present invention relates to a silicate luminescent material and preparation method thereof. The silicate luminescent material has the following general chemical formula: (Ba1-yAy)2-xSiO4: Eux, Dz@Mn, wherein @ represents coating, Mn is a core, (Ba1-yAy)2-xSiO4: Eux, Dz is a shell; A is one or two of Sr, Ca, Mg or Zn; D is either F or Cl; M is at least one of Ag, Au, Pt, Pd and Cu metallic nanoparticles; the value range of x is 0.001
Abstract:
Embodiments of the invention relate to methods of fabricating a polycrystalline diamond compacts and applications for such polycrystalline diamond compacts. In an embodiment, a method of fabricating a polycrystalline diamond compact includes at least saturating a sintering aid material with non-diamond carbon to form a carbon-saturated sintering aid material and sintering a plurality of diamond particles in the presence of the carbon-saturated sintering aid particles to form a polycrystalline diamond table.
Abstract:
Ceramic nanocomposites and methods for manufacturing the ceramic nanocomposites are disclosed. One method includes introducing to a fired green ceramic body having a ceramic matrix submicron particles having coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one type of location-controlling dopant at an amount that is sufficient to cover the majority of the ceramic matrix grain boundaries. One ceramic nanocomposite includes a ceramic matrix with submicron particles dispersed in the ceramic matrix, the submicron particles having a coefficient of thermal expansion lower than the coefficient of thermal expansion of the ceramic matrix and at least one dopant that covers the majority of the ceramic matrix grain boundaries, at a concentration that does not exceed the bulk solubility limit of the dopant in the ceramic matrix at the ceramic nanocomposite sintering temperature.
Abstract:
The present invention provides a process for simply and easily producing fine metal particles or fine metal oxide particles in the form of a dry powder which can be used as extremely fine particles in a good dispersion state without causing coagulation for a long time even if not stored in a dispersion solvent. Fine metal particles or fine metal oxide particles in the form of a dry powder are prepared using a dispersion in which fine metal particles or fine oxide metal particles having a surface oxidation film are dispersed in an organic solvent in a stable state, while once covering the particle surface with covering agent molecules containing, at a terminal, a functional group having an oxygen atom, a nitrogen atom, or a sulfur atom as a group capable of forming a coordinative bond with metal, and by removing the dispersion solvent, washing and removing excess covering agent molecules with a polar solvent without damaging the covering agent molecule layer covering the fine particle surface, finally evaporating the polar solvent used for washing and drying.