Abstract: The present invention relates to production of superhard materials.A carbon composition contains 18-38 wt. % of diamond having particle size of 40-120 .ANG. and graphite to make up 100 wt. % having particle size of 200-1000 .ANG..A process for producing the carbon composition consists in detonating a carbon-containing explosive having a negative oxygen balance, in a cooling medium containing 40-60 vol. % of carbon dioxide gas, not more than 2 vol. % of free oxygen, and a neutral gas to make up 100 vol. %.The present carbon composition will find predominant application as an abrasive for superfinish polishing.
Type:
Grant
Filed:
July 22, 1993
Date of Patent:
January 9, 1996
Assignee:
Anatoly Mikhailovich Staver
Inventors:
Viktor A. Guschin, Alexandr A. Zakharov, Alexei I. Lyamkin, Anatoly M. Staver