Radiation-Induced Transformation of Graphite to Diamond

Journal Article · Sat Nov 01 04:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.3680· OSTI ID:545009

Zaiser, M; Banhart, F ^[1]

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1. Max-Planck-Institut fuer Metallforschung, Heisenbergstr.1, D-70569 Stuttgart (Germany)

It is demonstrated theoretically that particle irradiation may lead to a destabilization of graphitic structures with respect to low-pressure growth of diamond. This is due to the large difference in the cross sections for irradiation-induced displacements of carbon atoms in diamond and graphite. A nonequilibrium phase diagram is calculated that shows the stability of graphite and diamond as a function of the displacement rate of atoms. The theoretical results are related to the experimentally observed transformation of spherical graphitic onions to diamond under electron irradiation. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 545009
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 79; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ATOMIC DISPLACEMENTS
CRYSTAL STRUCTURE
DIAMONDS
GRAPHITE
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
RADIATION EFFECTS
STABILITY