Registration Number
0210U000244,
0107U000037
, R & D reports
Title
Realization of diffusion-controlled processes of phase transformations and doping under high-shock compression of graphite-like structures
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Head
Kurdyumov Aleksandr Vyacheslavovich, Britun Viktor Fedorovich,
Registration Date
29-01-2010
Organization
Frantzevich Insitute for Materials Science Problems of the Ukranian National Academy of Sciences
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The work concems research on regularities in diffusion transformations in boron nitride (BN) and carbon under shock compression, and examination of possibility to form solid solutions of various elements in dense modifications of BN. The turbostratic carbon structures (carbon black, coal) were shown to transform into diamond via amorphous phase with density intermediate between that of graphite and diamond. The structure of amorphous carbon phase is characterized by three-dimensional distribution of sp2bonds. In contrast to carbon, the turbostratic BN transforms into cubic modification directly without formation of any intermediate structures. The concentration of solid solutions in cubic BN is always higher than in wurtzite BN. In dense phases formed under shock compression conditions the concentration of solid solutions in cubic BN is essentially less than in phases formed under static high-pressure conditions.
Product Description
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Балан Т.Р.
Боримчук М.І.
Бочко А.В.
Верещака В.М.
Громико С.М.
Даниленко А.І.
Заулічний Я.В.
Зелявський В.Б.
Ляшенко В.І.
Онопрієнко О.О.
Седінкін В.О.
Седляр Г.О.
Хижун О.Ю.
Ярош В.В.
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2020-04-02
