以Cf/SiC复合材料为基体,采用浆料浸涂法和脉冲CVD法制备了SiC/(ZrB2-SiC/SiC)4涂层,借助XRD、扫描电镜及能谱对涂层的结构及组成进行了分析研究,并初步考查了其高温抗氧化性能.结果表明,涂层总厚度约100μm,主要由ZrB2-SiC涂层与脉冲CVD SiC涂层交替覆盖而成.在1500℃空气中氧化25h,未涂层试样失重明显;脉冲CVD SiC涂层试样氧化失重率为5.1%;而SIC/(ZrB2-SiC/SiC)4涂层试样出现增重现象,增重率达2.5%,表现出优异的抗氧化性能.
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