| 燃烧合成Cf/TiC-TiB2复合材料过程中碳纤维的损断机理 |
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| 引用本文： | 汪建利,朱云广,邓启超. 燃烧合成Cf/TiC-TiB2复合材料过程中碳纤维的损断机理[J]. 高科技纤维与应用, 2007, 32(2): 11-14,25 |
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| 作者姓名： | 汪建利 朱云广 邓启超 |
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| 作者单位： | 安徽工程科技学院,机械工程系,安徽,芜湖,241000 |
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| 基金项目： | 安徽省教育厅自然科学基金项目(批准号:KJ2007A049) |
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| 摘 要： | 采用燃烧合成结合准热等静压的方法制备了Cf/TiC-TiB2复合材料,详细分析了材料制备过程中碳纤维的损断机理。研究结果表明,在剪短、湿混以及加压过程中会造成纤维的物理损伤和断裂;Ti和O原子与碳纤维表面C原子反应会造成纤维的化学损伤;残余应力导致纤维的高温损伤和断裂。
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| 关 键 词： | 燃烧合成 碳纤维 Cf/TiC-TiB2复合材料 损伤和断裂机理 |
| 文章编号： | 1007-9815（2007）02-0011-04 |
| 修稿时间： | 2007-03-16 |
Damage and Fracture Mechanism of Carbon Fiber in the Preparation of Cf/TiC-TiB2 Composites Synthesized by Combustion Synthesis |
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| WANG Jian-li,ZHU Yun-guang,DENG Qi-chao. Damage and Fracture Mechanism of Carbon Fiber in the Preparation of Cf/TiC-TiB2 Composites Synthesized by Combustion Synthesis[J]. Hi-Tech Fiber & Application, 2007, 32(2): 11-14,25 |
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| Authors: | WANG Jian-li ZHU Yun-guang DENG Qi-chao |
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| Affiliation: | Department of mechanical engineering, anhui university of science and technology, Wuhu 241000 China |
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| Abstract: | Cf/TiC-TiB2 composites was produced by combustion synthesis and pseudo hot isostatic pressing.Mechanism of damage and fracture of carbon fiber in the preparation of product was analyzed in detail.The results showed that physical damage and fracture was caused during the process of sheeting,wet mixing and pressing;Chemical damage was induced by reaction between carbon atom of the surface of carbon fiber and titanium and oxygen atom;High temperature damage and fracture was arised from residual stress. |
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| Keywords: | combustion synthesis carbon fiber Cf/TiC-TiB2 composites mechanics of damage and fracture |
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