Thermophoresis: The mass transfer mechanism in modified chemical vapor deposition
作者:
P. G. Simpkins,
S. Greenberg‐Kosinski,
J. B. MacChesney,
期刊:
Journal of Applied Physics
(AIP Available online 1979)
卷期:
Volume 50,
issue 9
页码: 5676-5681
ISSN:0021-8979
年代: 1979
DOI:10.1063/1.326744
出版商: AIP
数据来源: AIP
摘要:
The mass transfer of particulates of silica and germania is characteristic of the MCVD process for preparing optical fiber preforms. Here, after considering a number of alternatives, it is suggested that the dominant mechanism of mass transfer is thermophoresis, i.e., diffusion due to a large temperature gradient. Analytical arguments are given which support this assertion and compare favorably with experiments carried out in a MCVD apparatus.
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