| C/SiC复合材料的制备及性能研究 |
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| 引用本文： | 王晓君 刘凤荣. C/SiC复合材料的制备及性能研究[J]. 复合材料学报, 1991, 8(2): 77-83 |
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| 作者姓名： | 王晓君 刘凤荣 |
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| 作者单位： | 南京航空学院，国防科技大学，国防科技大学 210016 |
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| 摘 要： | 本文对聚碳硅烷化学转化法制备碳纤维增强碳化硅复合材料的生产工艺进行了研究,探讨了工艺参数对材料性能的影响.研究结果表明,聚碳硅烷分子量是影响材料性能的重要参数,纤维和基体间热膨胀系数的不匹配可通过向基体内加少量二氧化锆进行改善.材料的力学和热学性能测试结果表明,C/SiC复合材料具有较好的综合性能,其断裂韧性比未增强的单一陶瓷提高较多.利用电镜分析了弯曲试样的断口形貌.
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| 关 键 词： | 聚碳硅烷 C/SiC复合材料 三点弯曲实验 断裂韧性 |
| 收稿时间： | 1990-01-15 |
STUDY ON THE FABRICATION AND PROPERTIES OF C/SiC COMPOSITE |
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| Xiao jun WangDept.of Materials Sci., Engin.,Nanjing Aeronautical Institute,ChinaFongrong Liu and Changrui ZhangDept.of Materials Sci., Engin.,National University of Defence Technology,China. STUDY ON THE FABRICATION AND PROPERTIES OF C/SiC COMPOSITE[J]. Acta Materiae Compositae Sinica, 1991, 8(2): 77-83 |
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| Authors: | Xiao jun WangDept.of Materials Sci.& Engin. Nanjing Aeronautical Institute ChinaFongrong Liu Changrui ZhangDept.of Materials Sci.& Engin. National University of Defence Technology China |
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| Affiliation: | 1. Dept. of Materials Sci. & Engin., Nanjing Aeronautical Institute, China;2. Dept. of Materials Sci. & Engin., National University of Defence Technology, China |
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| Abstract: | The processing of silicon carbide reinforced with carbon fibre by means of polycarbosilane (PC) chemical transformation was studied in this work.The mismatch of thermal expansion coefficient between carbon fibre and silicon carbide matrix was alleviated by the addition of a small amount of zirconia to the matrix.The composite material possesses much improved toughness due to the fibre incorporation.The results of mechanical and thermal experiments show that the composite has good comprehensive properties. |
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| Keywords: | polycarbosilane C/SiC composite three-point bending test frac- ture toughness |
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