用扫描电子显微镜、电子能谱仪和X射线衍射仪对SiC/Fe3Al界面固相反应区的成分分布、微结构及相组成等进行分析研究.结果表明:在1 050℃和1 100℃的热处理温度下经10 h扩散反应后,SiC/Fe3Al界面固相反应区由Fe3Si、石墨态C和Fe-Si-Al三元化合物(FeSiAl5及FeSi3Al9)构成,SiC/Fe3Al界面固相反应区由调整的C沉积物区(M-CPZ)和均匀的C沉积物K(R-CPZ)(从SiC侧至Fe3Al侧)构成,调整的C沉积物区的形成归冈于SiC的不连续分解.
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