Abstract

For the reaction mechanism generally assumed in the literature as a model of boron particle ignition, an analysis of the ignition phenomenon is carried out. It is shown that for a boron particle residing in a stagnant oxidizing atmosphere, the model assumptions made by previous authors entail a very high critical ambient temperature for ignition. As this is in agreement with experiment, it is concluded that an alteration of the experimental conditions (e.g., a change to higher total pressures and a reduction of the particle size) should be made in order to obtain critical phenomena of a different kind at lower ambient temperatures.

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