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Study of Onion-Like Carbon (OLC) Formation from Ultra Disperse Diamond (UDD)

Published online by Cambridge University Press:  15 February 2011

Vladimir L. Kuznetsov ,
Andrey L. Chuvilin ,
Yurii V. Butenko ,
Igor Yu. Mal'kov ,
Anton K. Gutakovskii ,
Sergey V. Stankus  and
Raschid A. Khairulin
Vladimir L. Kuznetsov
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
Andrey L. Chuvilin
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
Yurii V. Butenko
Affiliation:
Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
Igor Yu. Mal'kov
Affiliation:
Lavrentiev Institute of Hydrodynamics, Novosibirsk 630090, Russia
Anton K. Gutakovskii
Affiliation:
Lavrentiev Institute of Hydrodynamics, Novosibirsk 630090, Russia
Sergey V. Stankus
Affiliation:
Institute of Thermophysics, Novosibirsk 630090, Russia
Raschid A. Khairulin
Affiliation:
Institute of Thermophysics, Novosibirsk 630090, Russia
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Abstract

Measurements of diamond bulk density change of carbon powder in the annealing of UDD to OLC (293-2400 K) was performed by irradiating the samples with a narrow beam of gamma quanta (137Cs gamma-ray source). The intermediates of UDD to OLC transformation were registered by high resolution TEM. The annealing products were also characterized by true density and specific area adsorption measurements. The structural rearrangement of UDD begins from the surface towards a crystal bulk. UDD annealing proceeds via particles composed of semi-spherical shells enclosed one-to-one with the rest of diamond core and quasispiral carbon shells. The influence of particle size on the temperature of UDD to OLC transformation was found.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 359: Symposium G – Science and Technology of Fullerene Materials , 1994 , 105
Copyright
Copyright © Materials Research Society 1995

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References

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