Oscillating convective effects in SF6-Ar laser-heated mixtures

S. Ruschin, S. H. Bauer*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


Periodic temperature variations were observed in vertical absorption cells which were filled with mixtures of SF6 and Ar. The cells were irradiated from below with a continuous CO2 laser beam of moderate intensity (3-15 W). The onset of oscillations and their dependence on mixture composition and laser irradiation intensity were measured. A qualitative model is proposed to account for this periodic behavior. Allowance for temperature oscillations must be made in developing thermochemical or kinetic parameters from laser-powered homogeneous pyrolysis experiments.

Original languageEnglish
Pages (from-to)5042-5048
Number of pages7
JournalJournal of Physical Chemistry
Issue number21
StatePublished - 1984


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