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Science 6 October 1972:
Vol. 178. no. 4056, pp. 54 - 56
DOI: 10.1126/science.178.4056.54
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Articles

Carbon: A Suggested New Hexagonal Crystal Form

A. Greenville Whittaker 1 and Gerard M. Wolten 1

1 Materials Sciences Laboratory, Aerospace Corporation, El Segundo, California 90245

Evidence for a new polymorphic form of carbon, similar to but distinct from chaoite, has been discovered. It is trigonal, with a0 = 5.33 angstroms and c0 = 12.24 angstroms. It is produced along with chaoite on the surfaces of graphitic carbons under free-vaporization conditions at low pressures, with temperatures above approximately 2550°K.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Carbyne Forms of Carbon: Do They Exist?.
P. P. K. Smith, P. P. K. SMITH, and P. R. BUSECK (1982)
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Carbynes: Carriers of Primordial Noble Gases in Meteorites.
A. G. Whittaker, A. G. WHITTAKER, E. J. WATTS, R. S. LEWIS, and E. ANDERS (1980)
Science 209, 1512-1514
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Carbynes in Meteorites: Detection, Low-Temperature Origin, and Implications for Interstellar Molecules.
R. Hayatsu, R. HAYATSU, R. G. SCOTT, M. H. STUDIER, R. S. LEWIS, and E. ANDERS (1980)
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