| Autor: |
Alekseev, N. I., Khadutin, V. S., Khmel'nitskii, I. K. |
| Zdroj: |
Russian Journal of Physical Chemistry; Nov2021, Vol. 95 Issue 11, p2263-2272, 10p |
| Abstrakt: |
A study is performed of elementary processes that occur during the transformation of a standard gas mixture for the CVD synthesis of diamond upon a rapid rise in temperature. The analysis creates a basis for solving the problem of the nucleation of carbon nucleating agents, showing that a rapid rise in temperature stimulates the predominant nucleation of diamond (rather than graphite) nucleating agents. The reason for this at the level of elementary processes is the similarity of the evaporation of graphite and diamond nucleating agents and the considerable difference between oxidation processes, which in contrast manifest notably upon a rapid change in the conditions of nucleation. The study provides a way of synthesizing massive diamonds that does not require the use of high pressures or the technology of CVD in its traditional form. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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