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OALib Journal期刊
ISSN: 2333-9721
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熔融硅液相浸渍法制备c/c-sic复合材料
Abstract:
？采用熔融硅液相浸渍法制备了c/c-sic复合材料,反应生成的sic主要分布在层间孔和束间孔碳基体表面,少量分布在束内孔.1600℃渗硅2h,硅化深度约为2～4μm.由于液态硅与碳之间的润湿性很好,在碳基体表面形成了连续的sic层,局部有粗大的多面碳化硅颗粒生成;讨论了细晶粒连续sic层和sic粗晶粒形成机理.由于sic的加入,材料的抗氧化性能得到明显改善.
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