摘要
将炭纤维毡体进行两组不同温度的高温热处理,然后采用化学气相沉积工艺制备炭/炭复合材料,考察了两组材料在不同温度、时间下的氧化失重率,利用X射线衍射技术分析了炭纤维的石墨化度,采用扫描电子显微镜观察了氧化前、后炭/炭复合材料的形貌,探讨了两组材料的氧化反应过程及其氧化行为差异的原因。
Carbon felt were heat treated at two different temperature, on subsequence the carbon/carbon composites were fabricated with chemical vapor deposition(CVD). The oxidation weight loss rates of the two kinds of samples at different temperature and time were investigated. Graphitization degree and mor-phlogy of the carbon fibers were analysed by X-ray diffraction,and SEM observaion was performed on the samples before and after the test. The oxidation process and the difference cause of oxidation behavior of the two samples were researched.
出处
《炭素》
2003年第4期19-22,共4页
Carbon
基金
国家自然科学基金(50082002)
