Ablation behavior of ZrB2-SiC-ZrO2 ceramic composites by means of the oxyacetylene torch

作者：Zhou Shanbao; Li Weijie^*; Hu Ping; Hong Changqing; Weng Ling

来源：Corrosion Science, 2009, 51(9): 2071-2079.

DOI：10.1016/j.corsci.2009.05.035

• Ceramic matrix composites
• SEM
• Weight loss
• Oxidation

Ablation behavior of ZrB2-SiC-ZrO2 ceramics with two ZrO2 contents was investigated using oxyacetylene torch. Thermogravimetric analysis demonstrated that ceramic with 10vol% ZrO2 showed initial weight change at higher temperature than the one with 20 vol% ZrO2. After same ablation condition, lighter oxidized microstructure and lower weight loss and line gain were obtained from ceramic with 10 vol% ZrO2. Ablation mechanism revealed that excessive ZrO2 would

• 出版日期2009-9
• 单位哈尔滨工业大学; 哈尔滨学院