Hard materials

Details Hard materials Hard materials

C - Chemistry, Metallurgy

01

B

23/7

C01B 35/14 (2006.01) C01B 21/082 (2006.01) C04B 35/563 (2006.01) C04B 35/5831 (2006.01) C09K 3/14 (2006.01)

Patent

CA 1091424

ABSTRACT OF DISCLOSURE This invention relates to a novel hard material which may be used as an abrasive and a method of making the material. The material consists essentially of BxCyNz, wherein x,y and z can have any value greater than 1, in tetrahedral form. The preferred material is BCN. The material is made by sub- jecting an appropriate source of boron, nitrogen and carbon to conditions of temperature and pressure sufficient to produce the material. The preferred method is to subject boron carbonitride in hexagonal or amorphous form in the presence of an appropriate solvent for the substance such as an aluminium/iron alloy to a pressure exceeding 50 kilobars and simultaneously a temperature exceeding 1300°C.

296973

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