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Science 9 June 1961:
Vol. 133. no. 3467, pp. 1821 - 1822
DOI: 10.1126/science.133.3467.1821
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Articles

Formation of Diamond by Explosive Shock

Paul S. DeCarli 1 and John C. Jamieson 2

1 Poulter Laboratories, Stanford Research Institute, Menlo Park, California
2 Department of Geology, University of Chicago, Chicago, Illinois

Samples of graphite have been recovered after exposure to explosive shocks of 300,000-atm estimated intensity. X-ray and electron-diffraction examinations prove the existence of diamond in this material. The mechanism proposed for the formation of diamond under these conditions is simple compression in the c-axis direction of the rhombohedral form of graphite.


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