| 引用本文: | 陈朝辉,张长瑞,冯春祥,等.聚碳硅烷先驱体制备SiC基复合材料的性能研究.[J].国防科技大学学报,1992,14(4):111-115.[点击复制] |
| Chen Zhaohui,Zhang Changrui,Feng Chunxiang,et al.Study on the Properties of Polycarbosilane Precurser SiC Matrix Composite[J].Journal of National University of Defense Technology,1992,14(4):111-115[点击复制] |
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| 聚碳硅烷先驱体制备SiC基复合材料的性能研究 |
| 陈朝辉, 张长瑞, 冯春祥, 张凌, 刘成民 |
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(材料科学与应用化学系)
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| 摘要: |
| 本文以聚碳硅烷 (PCS) 为先驱体，SiC晶须，SiC微粉或 C纤维为增强剂，热解转化制得 SiC/SiC或 C/SiC复合材料，研究其制备工艺过程对材料的力学和热物理性能的影响。结果表明: PCS 在 1300℃下转化为β-SiC微晶并将未烧结的增强剂网络在一起形成SiC/SiC或 C/SiC复合材料。该SiC基复合材料具有较好的常温和高温机械强度，优异的耐热疲劳和抗热震性能，在1300℃空气中具有良好的抗氧化性。 |
| 关键词: SiC陶瓷基复合材料，聚碳硅烷先驱体，力学与热物理性能 |
| DOI： |
| 投稿日期：1992-04-28 |
| 基金项目: |
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| Study on the Properties of Polycarbosilane Precurser SiC Matrix Composite |
| Chen Zhaohui, Zhang Changrui, Feng Chunxiang, Zhang Ling, Liu Chengmin |
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(Department of Materials Science and Applied Chemistry)
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| Abstract: |
| By using polycarbosilane as precursor and SiC whisker，SiC powder or carbon fiber as reinforcer，the SiC/SiC or C/SiC composite was fabricated. The influences of the properties of mechanics and thermal physics were investigated. The results showed that at 1300℃ polycarbosilane was transformed into β-SiC mic-crystal which linked the reinforcer to form the SiC/SiC or C/SiC composite. The composite has good mechanical properties at both room temperature and high temperature，excellent thermal shock resistance and thermal fatigur resistance，and good oxidation resistance at 1300℃ in air. |
| Keywords: SiC matrix composite,polycarbosilane precurser,property of mechanics and thermal physics |
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