Specialized metallurgical processes – compositions for use therei – Compositions – Consolidated metal powder compositions
Patent
1988-08-09
1990-03-27
Lechert, Jr., Stephen J.
Specialized metallurgical processes, compositions for use therei
Compositions
Consolidated metal powder compositions
75241, 75244, 419 12, 419 13, 419 16, 419 18, 419 23, 419139, 419 48, C22C 2904
Patent
active
049117564
ABSTRACT:
A sintered compact is obtained by sintering a mixture containing about 50 to 75 percent by volume of cubic boron nitride and about 25 to 50 percent of a binder under cBN-stable superhigh pressure conditions. The binder contains about 20 to 50 percent by weight of Al and one or more Ti compounds selected from the group consisting of TiN.sub.z, Ti(C,N).sub.z, TiC.sub.2, (Ti,M)C.sub.z, (Ti,M) (C,N).sub.z and (Ti,M)N.sub.z, wherein M indicates a transition metal of the group IVa, Va or VIa of the periodic table excepting Ti, and wherein z is within a range of 0.5.ltoreq.z.ltoreq.0.85. The atomic ratio of the content of Ti to that of the transition metal M in the binder is within the range of about
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patent: 4693746 (1987-09-01), Nakai et al.
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Japanese Patent Abstract No.: JP-A-58/164750, vol. 7, No. 285 (C-201) [1430] Dec. 20, 1983.
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Japanese Patent Abstract No.: JP-A-58/113349, vol. 7, No. 219 (C-188) [1364 Sep. 29, 1983.
Goto Mitsuhiro
Nakai Tetsuo
Bhat Nina
Fasse W. G.
Kane, Jr. D. H.
Lechert Jr. Stephen J.
Sumitomo Electric Industries Ltd.
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