Low-temperature preparation of C/C-W-Cu composites with enhanced particle impact and ablation resistance

Zhijie Dong, Bing Liu, Dou Hu, Qiangang Fu

科研成果: 期刊稿件文章同行评审

2 引用 (Scopus)

摘要

Herein, C/C-W-Cu composites were innovatively developed by a molten salt assisted reactive infiltration method, with the preparation temperature of only 1300 ℃, far lower than the traditional infiltration temperatures. The as-prepared C/C-W-Cu composites exhibited better particle erosion and high-temperature ablation resistance than C/C composites, with a linear variation rate decrease of 99.5 % and 80.3 % under particle impact (70 m/s, 10 s) and oxyacetylene ablation (2.4 MW/m2, 120 s) conditions, respectively. The improved protection performance can be attributed to the synergistic effects of ductile deformation of the surface W-Cu metal layer and transpiration cooling of the filled Cu phase, which prevents serious carbon fiber damage and ensures a low response of surface ablation temperature (∼1400 ℃).

源语言英语
文章编号177605
期刊Journal of Alloys and Compounds
1010
DOI
出版状态已出版 - 5 1月 2025

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