Lee Minyoung (Schenectady NY) Szala Lawrence E. (Scotia NY) DeVries Robert C. (Burnt Hills NY)
출원인 / 주소
General Electric Company (Schenectady NY 02)
인용정보
피인용 횟수 :
53인용 특허 :
5
초록▼
A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure be
A mass of diamond crystals in contact with a mass of eutectiferous silicon-rich alloy and a silicon carbide ceramic substrate are disposed in a container and placed within a pressure transmitting powder medium. Pressure is applied to the powder medium resulting in substantially isostatic pressure being applied to the container and its contents sufficient to dimensionally stabilize the container and its contents. The resulting shaped substantially isostatic system of powder-enveloped container is hot-pressed whereby fluid eutectiferous silicon-rich alloy is produced and infiltrated through the interstices between the diamond crystals and contacts the contacting face of the silicon carbide substrate sufficiently producing, upon cooling, an adherently bonded integral composite.
대표청구항▼
A composite consisting essentially of a polycrystalline diamond body integrally bonded to a substrate of polycrystalline silicon carbide, said polycrystalline diamond body consisting essentially of a mass of diamond crystals adherently bonded together by a bonding medium consisting essentially of si
A composite consisting essentially of a polycrystalline diamond body integrally bonded to a substrate of polycrystalline silicon carbide, said polycrystalline diamond body consisting essentially of a mass of diamond crystals adherently bonded together by a bonding medium consisting essentially of silicon carbide and a carbide and/or silicide of a metal component which forms a silicide with silicon and which forms a eutectiferous alloy with silicon, said metal component of said metal silicide being selected from the group consisting of cobalt, chromium, iron, hafnium, manganese, molybdenum, nickel, palladium, platinum, rhenium, rhodium, ruthenium, tantalum, thorium, titanium, uranium, vanadium, tungsten, yttrium, zirconium, and alloys thereof, said metal component of said metal carbide being selected from the group consisting of chromium, hafnium, titanium, zirconium, tantalum, vanadium, tungsten, molybdenum, and alloys thereof, said diamond crystals ranging in size from about 1 micron to about 1000 microns, the volume of said diamond crystals ranging from at least about 70% by volume up to about but less than 90% by volume of said body, said bonding medium being present in an amount ranging up to about 30% by volume of said body, said bonding medium being distributed at least substantially uniformly throughout said body, the portion of said bonding medium in contact with the surfaces of said diamond crystals being at least in a major amount silicon carbide, said diamond body being at least substantially porefree, said substrate consisting essentially of a hot-pressed or sintered polycrystalline silicon carbide body wherein the silicon carbide grains are bonded directly to each other ranging in density from about 85% to about 100% of the theoretical density of silicon carbide and containing silicon carbide in an amount of at least 90% by weight of said substrate and being free of constituents which have a significant deleteriouseffect on the mechanical properties of said composite, said polycrystalline diamond body forming an interface with said silicon carbide substrate wherein said bonding medium extends from said polycrystalline diamond body into contact with said silicon carbide substrate at least substantially filling any pores throughout said interface so that said interface is at least substantially pore-free.
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이 특허에 인용된 특허 (5)
Lee ; Minyoung ; Szala ; Lawrence E., Composite of bonded cubic boron nitride crystals on a silicon carbide substrate.
Slutz David E. (Worthington OH) Gigl Paul D. (Worthington OH) Flood Gary M. (Canal Winchester OH) Smith Gary W. (New Albany OH), Brazed thermally-stable polycrystalline diamond compact workpieces.
Lillo, Thomas M.; Chu, Henry S.; Harrison, William M., Composite materials and bodies including silicon carbide and titanium diboride and methods of forming same.
Schmitz, Kurtis; Scott, Danny E., Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same.
Karandikar, Prashant G.; Salamone, Sam; McCormick, Allyn L.; Aghajanian, Michael K.; Evans, Glen, Diamond-reinforced composite materials and articles, and methods for making same.
Nazmy Mohamed (Gebenstorf CHX) Singer Robert (Untersiggenthal CHX), Method for the application of a corrosion-protection layer containing protective-oxide-forming elements to the base body.
Lauvinerie Jean-Pierre (Crespieres FRX) LeFeuvre Annick (Elancourt Maurepas FRX), Method of forming a diamond tooth insert for a drill bit and a diamond cutting element formed thereby.
Gordeev,Sergey Konstantinovitch; Zhukov,Sergey Germanovitch; Danchukova,Lija Vladimirovna; Ekstr철m,Thommy, Method of manufacturing a diamond composite and a composite produced by same.
Bertagnolli, Kenneth E.; Vail, Michael A., Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor.
Lee Minyoung (Schenectady NY) Szala Lawrence E. (Scotia NY), Process for cementing diamond to silicon-silicon carbide composite and article produced thereby.
Dyer Henry B. (28 George Street ; Bryanston Transvaal ZAX) Phaal Cornelius (34 Rutland Avenue ; Craighall Park Transvaal ZAX) Brunand Richard P. (39 Constantia Avenue ; Alan Manor Transvaal ZAX), Thermally stable diamond abrasive compact body.
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