利用聚合物前驱体陶瓷工艺制备了Si-Al-C-N陶瓷,并对陶瓷氧化和腐蚀特性进行了研究.结果表明:掺入少量的Al将极大地提高Si-Al-C-N陶瓷的抗氧化和抗腐蚀能力.含1.4at%Al的Si-Al-C-N陶瓷的氧化速率较文献报道硅基材料的低10倍,并且在1200℃,50 h观察不到任何腐蚀.还讨论了Si-Al-C-N陶瓷的抗氧化与腐蚀的机理.
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