Nitrided superhard composite material

Details Nitrided superhard composite material Nitrided superhard composite material

C - Chemistry, Metallurgy

04

B

25/140

C04B 33/34 (2006.01)

Patent

CA 1199781

ABSTRACT OF THE DISCLOSURE Sintered silicon carbide cutting tool compos- ites containing diamond crystals are described. They are made through a process comprising separately compacting carbon binder materials, one of which contains superhard crystals, into a cutting tool insert configuration when the crystals are concentrated in the cutting edges, in- filtrating the insert with liquid silicon and sintering and nitriding the insert to convert the silicon to silicon carbide and silicon nitride.

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