Ablation behavior of nose-shaped HfB2-SiC modified carbon/carbon composites exposed to oxyacetylene torch

Nose-shaped C/C-H fB2-SiC with good mechanical property were fabricated by PIP. During ablation in 2.38 MW/m2 using oxyacetylene torch, the composites showed good ablation performance and structural stability. Because of the nose-shaped feature, protective ablation products including borosilicate glass, HfO2-glass and HfO2 scale covered on the surface according to their distances to the nose tip, which were beneficial for enduring the heating...