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AssigneesThe Ishizuka Research Institute, Ltd., Mitsue Koizumi, Manshi Ohyanagi, Moscow Steel and Alloys Institute, SHS-Center
InventorsMitsue Koizumi, Manshi Ohyanagi, Satoru Hosomi, Evgeny A. Levashov, Alexander V. Trotsue, Inna P. Borovinskaya
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This invention provides a composite product and an effective method for producing the same, based on an SHS or intense heat producing process. Said composite essentially comprises either (1) one or more skeletal structures of three dimensionally joined pieces of at least one ceramic material selected from carbide, boride, nitride and silicide of titanium, zirconium, tantalum, niobium, silicon, chromium, tungsten, and molybdenum, and metallic material of alloy and/or intermetallic compound which fills the gaps within each and between adjacent skeletal structures, or (2) a matrix consisting of SHS products of metallic and/or ceramic substances, and particles of superabrasive selected from diamond and high pressure polymorphism of boron nitride, which are held and distributed in the matrix in the whole, in the surface or surface area comprising the portion corresponding to the end working face. Also effective is the use of superabrasive particles coated with metallic and/or non-metallic materials by some specific techniques.
A sintered composite with superabrasive particles of superabrasive material that are distributed in a matrix of an optical-microscopically poreless structure, said matrix comprising a block of refractory compound in skeletal construction with internal gaps among and around said skeletal structure that is formed in an SHS process and metallic phase, said refractory compound being selected from the group consisting of carbide, boride and nitride of each of titanium and zirconium, silicon carbide, silicon nitride and boron carbide, said internal gaps being filled with said metallic phase, which consists of molten-and-solidified metallic material, said superabrasive material being selected from diamond and high pressure polymorphism of boron nitride, and said particles being spread over an area including a working surface of the matrix.
Dependencies are inferred from the claim text.