Experimental estimation of the strength of the coke of a charring, rubber-like, heat-shield material

The results of an experimental estimation of the strength of the coke of a typical charring, rubber-like, heat-shield material are given. Based on numerical studies and experimental results, a temperature region in which the coke is least strong was found. Thermochemical and thermomechanical failure regimes were distinguished, and the coke failure mechanism was established.