Abstract
This paper describes the problem of the behavior of a mixture of small graphite particles with water in the conditions of shock-wave action at a pressure of 32 GPa and a temperature of up to 1200–1600 K. Graphite particles at these pressures and temperatures are capable of transforming into cubic diamonds or at least into their hexagonal form that is lonsdaleite. It is shown that, for sufficiently small graphite particles of the order of 1 μm, their mixture with water for about 10 μs can heat up to the above-mentioned temperatures and undergo phase transformation, remain in those conditions for about 50 μs, and then efficiently cool down during the next 50 μs to the temperatures below 300 K, while remaining in the diamond phase.
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Original Russian Text © L.V. Shurshalov, A.A. Charakhch’yan, K.V. Khishchenko.
Published in Fizika Goreniya i Vzryva, Vol. 53, No. 4, pp. 114–121, July–August, 2017.
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Shurshalov, L.V., Charakhch’yan, A.A. & Khishchenko, K.V. Numerous experiment on impact compression of a mixture of graphite and water. Combust Explos Shock Waves 53, 471–478 (2017). https://doi.org/10.1134/S0010508217040116
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DOI: https://doi.org/10.1134/S0010508217040116