Abstract
The process of formation and growth of carbon protrusions of various shapes up to 0.3 mm in size on the surface of graphite samples kept at a temperature of ~3 kK for ~103 s in argon at a pressure of ~50 kPa is described. Possible mechanisms for the formation of protrusions (spherules) are discussed; it is assumed that an important role in these processes can be played by the emission of carbon microparticles from the sample.
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ACKNOWLEDGMENTS
The authors are grateful to G.E. Valyano, who took photographs of the samples with an electron microscope.
Funding
The experiments presented in this work were carried out with partial financial support from the Russian Foundation for Basic Research (grants no. 01-02.16537 and no. 06-08-00056a).
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Polishchuk, V.P., Samoylov, I.S., Amirov, R.K. et al. The Growth of Submillimeter Spherules on a Graphite Surface Under Prolonged Heating. High Temp 60, 513–522 (2022). https://doi.org/10.1134/S0018151X22030154
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DOI: https://doi.org/10.1134/S0018151X22030154