Ablation behavior of nose-shaped HfB 2 -SiC modified carbon/carbon composites exposed to oxyacetylene torch

Jia Ping Zhang, Jun Ling Qu, Qian Gang Fu

科研成果: 期刊稿件文章同行评审

56 引用 (Scopus)

摘要

Nose-shaped C/C-H fB 2 -SiC with good mechanical property were fabricated by PIP. During ablation in 2.38 MW/m 2 using oxyacetylene torch, the composites showed good ablation performance and structural stability. Because of the nose-shaped feature, protective ablation products including borosilicate glass, HfO 2 -glass and HfO 2 scale covered on the surface according to their distances to the nose tip, which were beneficial for enduring the heating conditions. As heat flux increased to 4.18 MW/m 2 , more serious ablation occurred, and the protective performance degradation of the ablation products accelerated, especially at the nose tip, the partly ruptured HfO 2 layer was difficult to withstand the enhanced denudation.

源语言英语
页(从-至)87-96
页数10
期刊Corrosion Science
151
DOI
出版状态已出版 - 1 5月 2019

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