Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5459931 | Journal of Alloys and Compounds | 2017 | 34 Pages |
Abstract
Ablation behavior of double-layer ZrB2-based ceramic coating for lightweight ZrB2 modified carbon-bonded carbon fiber (CBCFs/ZrB2) composites was tested under an oxyacetylene flame at elevate temperature (1500, 1600 and 1700 °C) for 600s. The results indicate that the ablation temperature has significant effect on the microstructure and ablation behavior of the coated CBCFs/ZrB2 composites. The as-prepared coating could efficiently protect CBCFs/ZrB2 composites against oxidation from 1500 to 1700 °C for 600s. The ZrB2-based ceramic coating had a good self-healing ability at 1500 °C and 1600 °C. With the increasing ablation temperature to 1700 °C, the coating exhibited severe ablation. However, the molten SiO2 from the coating seeped into the CBCFs/ZrB2 composites forming a coating layer on the carbon fibers surface which acted as an efficacious oxidation protective barrier.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Baosheng Xu, Rujie He, Changqing Hong, Yongbin Ma, Weibin Wen, Huimin Li, Tianbao Cheng, Daining Fang, Yazheng Yang,