Process for the manufacture of polycrystalline boron nitride

Details Process for the manufacture of polycrystalline boron nitride Process for the manufacture of polycrystalline boron nitride

C - Chemistry, Metallurgy

04

B

25/140

C04B 35/58 (2006.01)

Patent

CA 1142318

Abstract of the Disclosure The process comprises application of high pressures and temperatures to a charge containing boron nitride and high-melting compounds such as titanium nitride or titanium carbonitride with a particle size ranging from 50 to 1,000 .ANG.. The process according to the present invention can be employed in the manufacture of superhard materials useful in the production of tools for machining hardly processable alloys.

336088

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