SiC_f/Al复合材料的界面性能及机制  

INTERFACE PROPERTIES OF SiC_f/AL COMPOSITE AND ITS MECHANISM

作　　者：朱祖铭[1] 郭延风[1] 石南林[1] 朱桂秋[1] 马通达[1] 

机构地区：[1]中国科学院金属研究所材料疲劳断裂国家重点实验室

出　　处：《材料研究学报》2002年第1期59-66,共8页Chinese Journal of Materials Research

基　　金：国家自然科学基金资助项目 59781005.

摘　　要：通过对ＳｉＣ纤维表面富Ｃ、富ＳｉＯ２和双涂层处理的ＳｉＣｆ／Ａｌ复合材料试样的不同热压制备工艺研究，发现热压温度和压力均对纤维表面改性后的界面性能有相当大的影响，温度和压力的提高改善了富ＳｉＯ２处理试样的界面性能，却使富Ｃ和双涂层处理试样的界面性能蜕化，研究了产生这种影响的机制．Study on various hot pressing technology of manufacturing SiCf/Al composite treated with rich C, rich SiO2 and double coating (first coated with C, then BN) has been carried out. It is found that temperature and pressure for preparing sample by hot pressing have an important influence on properties of interface between fiber and matrix. Interface properties of SiCf/Al treated with rich SiO2 has been improved, whereas interface properties of SiCf/Al treated with rich C degenerate at elevated temperature and pressure of hot pressing. Moreover, interface properties of SiCf/Al has been improved with double coating, but degenerate at over high temperature and pressure of hot pressing. The mechanism of effect of temperature and pressure on interface properties has been investigated. Interface products play an important role in interface properties.

关 键 词：SiCf/Al复合材料 热压温度 压力 界面性能 碳化硅纤维 硅基复合材料 

分 类 号：TB333[一般工业技术—材料科学与工程]