Nanocrystalline diamond synthesized from C60

Bayerisches Geoinstitut, Universität Bayreuth, Universittstrasse 30, 95440 Bayreuth, Germany
Diamond and Related Materials (Impact Factor: 1.57). 11/2010; DOI: 10.1016/j.diamond.2004.06.017

ABSTRACT A bulk sample of nanocrystalline cubic diamond with crystallite sizes of 5–12 nm was synthesised from fullerene C60 at 20(1) GPa and 2000 °C using a multi-anvil apparatus. The new material is at least as hard as single crystal diamond. It was found that nanocrystalline diamond at high temperature and ambient pressure kinetically is more stable with respect to graphitisation than usual diamonds.

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