Simulation of thermochemical ablation of modified C/SiC-ZrC composites

doi:10.19936/j.cnki.2096-8000.20240628.003

Abstract

Abstract: Ultra-high temperature ceramic matrix composites prepared based on matrix modification of C/SiC composites are an effective way to meet the higher requirements for thermal protection system materials required by hypersonic aircrafts. The ablation model of C/SiC-ZrC composites is constructed based on thermochemical equilibrium theory, and two sets of C/SiC-ZrC composites with different volume fractions under the same preparation method in the literature were selected, and the dimensionless ablation rates of the two sets of materials were calculated using MATLAB, and then numerical simulations were established in COMSOL multiphysics field analysis software, and the simulation results were compared with the experimental results in the literature, and the errors were 8.7%~16.9% and 1.05%~11.07%, respectively, which verifies the validity of the model.

Key words: C/SiC-ZrC composite materials, matrix modification, ablation, thermochemical equilibrium, numerical simulations

CLC Number:

TB332

ZHANG Chuandian, CHEN Tao, DUAN Zhenyan, LIU Fengyu. Simulation of thermochemical ablation of modified C/SiC-ZrC composites[J]. COMPOSITES SCIENCE AND ENGINEERING, 2024, 0(6): 22-28.

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