采用包埋和涂刷法制备出一种新型的炭/炭复合材料抗氧化涂层,它由自愈合内涂层、热膨胀系数匹配过渡层、氧阻挡层三层复合而成.用SEM,XRD对它的组分和形貌进行了表征,同时测试了涂层在1 000,1 300和1 400℃下的抗氧化性能和抗热震性能.实验结果表明:该涂层能在1 400℃下有效保护炭/炭材料达50 h以上,经过20次室温到1 400℃的热震循环后,涂层仍然完整致密.
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