Nanocrystalline diamond synthesized from C60. Diam. Relat. Mater. 14(1), 16-22

Bayerisches Geoinstitut, Universität Bayreuth, Universittstrasse 30, 95440 Bayreuth, Germany
Diamond and Related Materials (Impact Factor: 1.92). 11/2010; 14(1):16-22. DOI: 10.1016/j.diamond.2004.06.017


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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    • "They are used as insets in cutting and wear-resistant tools, fabricated by Sumitomo Electric Industries, Ltd. and as anvils in multi-anvil (MA) apparatus and diamond anvil cells (DACs) in Earth and planetary and materials research [9] [10] [11]. Bulk nanocrystalline diamond (NCD), with mechanical properties competing with those of NPDs, was synthesized also from various carbon precursors first in a shape of small (mm-sized) rods [12] [13] [14]. "
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    • "Solid line from experimental data shows activation energy (temperatures) needed for the graphite–diamond conversions that fall with the increasing of pressure. activation energy (or needed temperature) [1] [6] [12] [20] [21] "
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