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Science 11 June 1971:
Vol. 172. no. 3988, pp. 1132 - 1134
DOI: 10.1126/science.172.3988.1132
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Articles

Sintered Diamond Compacts with a Cobalt Binder

Howard Katzman 1 and W. F. Libby 1

1 Department of Chemistry and Institute of Geophysics and Planetary Physics, University of California, Los Angeles 90024

Diamond powder can be successfully cemented with cobalt. At 62 kilobars the sintering occurs over the temperature range from 1570° to 1610°C. The maximum microhardness of the compact (rang 3000 kilograms per square millimeter on the Knoop scale) is obtained with a mixture of 20 percent cobalt (by volume) and a diamond particle size of 1 to 5 micrometers.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Sintered Superhard Materials.
R. H. Wentorf, R. C. DeVries, and F. P. Bundy (1980)
Science 208, 873-880
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