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Transformations of C60 fullerite under high-pressure high-temperature conditions

 a,  b
a Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russian Federation
b Institute for High Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow, Russian Federation

Depending on pressure-temperature conditions, fullerite crystals can transform as to the well-known carbon phases, graphite and diamond, and to new metastable crystalline and amorphous modifications. The mechanical properties, density and structural data of the latter are reviewed. It is concluded that the crystalline C60 phases possess mechanical characteristics 2-3 times lower than that for the diamond; amorphous states of carbon with a large share of the sp3 -configurations have mechanical properties close to those of the diamond. The analysis of current literature enables us to conclude that the diamond has the highest elastic moduli among the carbon materials studied up to date.

Text can be downloaded in Russian. English translation is available on IOP Science.
PACS: 36.40.Ei, 61.46.+w (all)
DOI: 10.1070/PU1996v039n08ABEH000163
URL: https://ufn.ru/en/articles/1996/8/e/
Citation: Brazhkin V V, Lyapin A G "Transformations of C60 fullerite under high-pressure high-temperature conditions" Phys. Usp. 39 837–840 (1996)
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Оригинал: Бражкин В В, Ляпин А Г «Превращения фуллерита C60 при высоких давлениях и температурах» УФН 166 893–897 (1996); DOI: 10.3367/UFNr.0166.199608e.0893

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