Ceramic-metallic composites are disclosed along with the processes for their manufacture. The present invention improves high temperature strength of Al.sub.2O.sub.3—Al composites by displacing aluminum in the finished product with other substances that enhance the high temperature strength. Each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes Al.sub.2O.sub.3, aluminum and another substance.

A method for manufacturing a machine component made of metal-based material is described. The method comprises the steps of: providing a powder blend comprising at least one metal-containing powder material and at least one strengthening dispersor in powder form, wherein the strengthening dispersor in powder form has an average grain size less than an average grain size of the metal-containing powder material; and forming the machine component by an additive manufacturing process using the powder blend.

Ceramic-metallic composites are disclosed along with the equipment and processes for their manufacture. The present invention improves the densities of these composites by eliminating porosity through the use of a unique furnace system that applies vacuum and positive gas pressure during specific stages of processing. In the fabrication of Al.sub.2O.sub.3—Al composites, each process commences with a preform initially composed of at least 5% by weight silicon dioxide, and the finished product includes aluminum oxide and aluminum, and possibly other substances.

Provided herein are nanocrystalline materials comprising, e.g., a matrix including one or more metals; and nanostructures dispersed in the matrix, wherein the matrix is polycrystalline and includes grains having an average size of about 1μm or less. Also provided herein are manufacturing methods of a nanocrystalline materials.

Provided is an FePt based magnetic material sintered compact, comprising BN and SiO.sub.2 as non-magnetic materials, wherein Si and O are present in a region where B or N is present at a cut surface of the sintered compact. A high density sputtering target is provided which enables production of a magnetic thin film for heat-assisted magnetic recording media, and also reduces the amount of particles generated during sputtering.

The present disclosure relates to tubular welding electrodes that have a metallic sheath surrounding a granular core, wherein the metallic sheath comprises a metal matrix composite (MMC) that includes a ceramic material and aluminum or an aluminum alloy. The ceramic material may be in the form of microparticles or nanoparticles. The present disclosure also relates to method for making such tubular welding electrodes.

Provided is an FePt-oxide-BN-based sintered compact for a high-density sputtering target that can suppress generation of particles during sputtering.

The FePt-oxide-BN-based sintered compact for a sputtering target has a mass ratio of N to B (N/B) in a range of 1.300.1.

There is provided a BN-containing ferromagnetic material sputtering target which is capable of suppressing generation of particles during sputtering. A sputtering target containing from 1 to 40 at. % of B and from 1 to 30 at. % of N and comprising a structure including at least one ferromagnetic metal-containing metal phase and at least one nonmagnetic material phase, wherein an X-ray diffraction profile obtained by analyzing the structure with an X-ray diffraction method exhibits a diffraction peak derived from cubic boron nitride.

A method for manufacturing an alloy formed from a boride of a precious metal, the method involving reacting a source of the precious metal with a source of boron in a salt or a mixture of salts in the molten state. The present invention also relates to an alloy formed from a boride of a precious metal, the alloy including crystalline nanoparticles of M.sub.xB.sub.y with M which is a precious metal, distributed in an amorphous matrix of B or in an amorphous matrix of B and of M.sub.zB.sub.a.

Molybdenum composites containing silicon and boron for environmental resistance are combined so as to minimize the silicon solid solution in the molybdenum phase. The composites include ratios of molybdenum, silicon, and boron to form three phase mixtures of molybdenum, A15 (Mo.sub.3Si), and T2 (Mo.sub.5SiB.sub.2) or molybdenum, SiO.sub.2, and T2 (Mo.sub.5SiB.sub.2). Beneficial additives, including manganese and strontium aluminosilicate, are included to improve the composite's properties. Manufacturing processes to produce these composites as either powders or solid parts are included.