采用稀土CeO2改性镁铝硅玻璃(MAS)作为中间层,对碳/碳(C/C)复合材料和锂铝硅玻璃陶瓷(LAS)进行热压连接,研究了稀土氧化物CeO2的掺杂对连接接头性能的影响.利用扫描电子显微镜(SEM)、能谱(EDS)对稀土改性的MAS中间层、连接界面的形貌及成分进行分析,利用万能试验机测试C/C-LAS连接接头的剪切强度.研究结果表明:与未添加CeO2改性的MAS中间层相比较,改性后MAS中间层表面较致密,孔洞缺陷少,MAS中间层的厚度约为150 μm,未改性MAS中间层的厚度为50 μm;稀土CeO2改性后的连接接头平均剪切强度为25.37MPa,比未改性的连接接头强度提高约为30％.
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