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Issue 24, 1996
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Heat resistance of a shock-synthesized B–C–N heterodiamond

Tamikuni Komatsu,  Youzo Kakudate  and  Shuzo Fujiwara 

Abstract

The heat resistance of a B–C–N heterodiamond (c-BC2.5N) has been investigated and compared with that of the starting material (h-BC2.5N), graphite, diamond, c-BN and h-BN. With regard to thermogravimetry c-BC2.5N showed partial pyrolysis up to 1300 °C and its thermal oxidation resistance lay between that of diamond and c-BN. The TG-residue of c-BC2.5N contained significant amounts of unchanged c-BC2.5N. This was due to coverage of c-BC2.5N by pyrolytically produced B2O3. The structure transition temperatures of the three cubic materials were in the range 1800–2000 °C at atmospheric pressure and increased in the order: c-BN ≲ C-BC2.5N < diamond. These characteristics of c-BC2.5N can be related to its diamond-type structure composed of hetero atoms.

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Article type: Paper
DOI: 10.1039/FT9969205067
Citation: J. Chem. Soc., Faraday Trans., 1996,92, 5067-5071
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    Heat resistance of a shock-synthesized B–C–N heterodiamond

    T. Komatsu, Y. Kakudate and S. Fujiwara, J. Chem. Soc., Faraday Trans., 1996, 92, 5067
    DOI: 10.1039/FT9969205067

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