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碳/碳复合材料的宽温域自愈合抗氧化
Authors
张伟刚
Publication date
1 January 2011
Publisher
Abstract
在前期碳材料自愈合抗氧化研究的基础上,提出了通过多元陶瓷基体改性赋予碳/碳复合材料在较宽温度范围内实现自愈合抗氧化的基本原理和技术方案,分析了B4C—SiC、ZrC—SiC和ZrB2-ZrC—SiC等多元陶瓷的抗氧化机理,并采用新近合成的ZrB2-ZrC—SiC三元复相陶瓷有机前驱体,通过PIP技术制备了一系列超高温复相陶瓷改性的碳/碳复合材料,研究了该类复合材料在2200℃以下高速气流冲蚀环境中的协同抗氧化和抗烧蚀性能,发现材料表面生成的复合氧化物层能够在一定条件下赋予复合材料自愈合抗氧化能力
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Last time updated on 11/04/2021