Linear Ablation of Composites

For composites under gradient heating up to very high temperatures 1500 – 2000 °C, linear (surface) ablation must be considered in addition to volumetric ablation. The definitions and classification of linear ablation processes were given in paragraph 1.2. The purpose of the present chapter is to establish relationships for the calculation of the linear rate D for different types of surface ablation: combustion, sublimation, melting and thermomechanical erosion of composites.