Gas-Phase Nucleation of Diamond Clusters upon a Sharp Rise in Temperature under Conditions of CVD Synthesis
2021 ◽
Vol 95
(12)
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pp. 2444-2453
Keyword(s):
Abstract It is shown that the predominant nucleation of diamond nuclei (instead of graphite ones) in plasma or hot-filament assisted CVD technology is due to a sharp increase in the temperature of the region of the initial gas mixture’s motion. The nucleation of diamond nuclei then occurs immediately in the gas phase. The reason for such predominant nucleation is high oversaturation by small hydrocarbon fragments in the gas mixture, due to a rapid change in temperature and substantial differences between the desorption of such fragments from the surfaces of nuclei and the oxidation of nuclei. A way is described of synthesizing massive diamonds without the use of high pressures and CVD technology in its traditional form.
1998 ◽
Vol 3
(1)
◽
pp. 41-47
Keyword(s):
2016 ◽
Vol 869
◽
pp. 721-726
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Keyword(s):
1999 ◽
Vol 61-62
◽
pp. 176-178
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Keyword(s):
1994 ◽
Vol 25
(1)
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pp. 15-21
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2009 ◽
Vol 48
(11)
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pp. 118003
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Keyword(s):
1972 ◽
Vol 326
(1566)
◽
pp. 315-330
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1984 ◽
Vol 57
(4)
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pp. 1055-1068
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