Abstract
The dependence of the rate coefficients of gas—phase oxidation reactions of monatomic and diatomic refractory species on temperature is discussed. Examples given pertain primarily to Al and B species reactions in the 300–1900 K range. These reactions show a wide variety of ln k(T) vs. T—1 behavior patterns. It is shown that, because of this variety, it is not yet possible to make reliable predictions regarding reactions for which no experimental data on temperature dependence are available. However, some guidance is given toward making preliminary estimates. Quantitative kinetic data on the reactions are given and the importance of their thermochemistry is discussed. The experimental method (HTFFR) used to obtain these data is briefly reviewed.
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