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中文摘要：
采用扫描电镜分析了制备态及热暴露条件下国产涂碳SiC纤维增强Ti-6Al-4V复合材料的界面特性。研究发现,C涂层可以有效阻止Si元素向界面反应层或基体扩散,界面反应层厚度随热暴露时间的延长不断增加,但界面层厚度的不均匀性先增加后减小,在900℃/40 h热暴露后界面反应层厚度不均匀性最大呈现明显的锯齿状。
英文摘要：
Interface characteristics of SiCf/C/Ti-6Al-4V composites in as-deposited state and thermal exposure con-dition are observed by Scanning Electron Microscopy. The research shows that diffusion of Si atoms into interfacial reaction layer and matrix is prevented by carbon coating. In addition, interface layer thickness increases with pro-longing exposure time, but the difference between maximum thickness and minimum thickness first increases and then decreases, and ultimately reaches the maximum with saw tooth interface after heat exposure at 900℃ for 40 h.
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