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NF3 decomposition behind shock waves

✍ Scribed by V.M. Doroshchenko; N.N. Kudriavtsev; A.M. Sukhov; D.P. Shamshev

Publisher: Elsevier Science
Year: 1992
Tongue: English
Weight: 239 KB
Volume: 193
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(92)85664-v

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✦ Synopsis

The rate constant of the NF3 dissociation reaction in a helium mixture in the low-pressure limit was directly measured in a shock tube by a UV absorption method. The rate constant may be expressed as K= 10'4~3s~0~07 exp{-[36600+2100 (cal/mol)]/ RT) cm3/mol s in the temperature range 1050-1600 K. Levels of the NFs stationary dissociation fraction were also measured as a function of the initial temperature of the mixture behind the shock wave. It increases monotonically with temperature and reaches 50% of the value at 1600 K, which corresponds to high NFI concentration up to 2 x 10" cme3.

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