| 热压烧结一步法制备C_f/Cu复合材料的组织和性能 |
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| 引用本文： | 刘桂香,黄向东,郑振环,李强.热压烧结一步法制备C_f/Cu复合材料的组织和性能[J].复合材料学报,2010,27(1):73-78. |
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| 作者姓名： | 刘桂香 黄向东 郑振环 李强 |
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| 作者单位： | 福州大学材料科学与工程学院,福州,350108 |
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| 基金项目： | 福州大学科技发展基金(2006-XQ-01);;福州大学人才基金(XJY-0305) |
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| 摘 要： | 为了简化工艺及提高性能,采用热压烧结一步法制备Cf/Cu复合材料。研究了Cf/Cu复合材料的界面反应原理、微观形貌及不同的Ti添加量对复合材料密度、硬度、强度等性能的影响。结果表明:Cu-C-Ti三元体系,在低于1100℃,碳纤维表面生成TiC层,该反应层降低了液态Cu与碳纤维的润湿角,改善了Cu与碳纤维的界面结合。探讨了TiC层的形成机制,提出了溶解在Cu液中的Ti原子与碳纤维接触生成TiC的微观反应模型。TiC层的形成有利于提高复合材料的性能。当Ti的质量分数为16.7%时,Cf/Cu复合材料的综合性能最好,其肖氏硬度高达HS66.94,抗弯强度为97.59 MPa。
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| 关 键 词： | 碳纤维 (C f) 复合材料 热压烧结 肖氏硬度 抗弯强度 |
| 收稿时间： | 2009-02-23 |
| 修稿时间： | 2005-05-12 |
Microstructure and properties of C_f/Cu composites prepared by one-step hot-pressing sintering |
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| LIU Guixiang,HUANG Xiangdong,ZHENG Zhenhuan,LI Qiang.Microstructure and properties of C_f/Cu composites prepared by one-step hot-pressing sintering[J].Acta Materiae Compositae Sinica,2010,27(1):73-78. |
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| Authors: | LIU Guixiang HUANG Xiangdong ZHENG Zhenhuan LI Qiang |
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| Affiliation: | College of Materials Science and Engineering;Fuzhou University;Fuzhou 350108;China |
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| Abstract: | For getting better properties and simplifying the process,the Cf/Cu composites were prepared by one-step hot-pressing sintering.The mechanism of the interface reaction between Cu and carbon fiber(Cf)and the microstructure of Cf/Cu composites were studied.The effects of different Ti contents on the density,hardness and bending strength of Cf/Cu composites were investigated.The results indicate that TiC layer surrounding Cf is generated in the ternary system of Cu-C-Ti and the TiC layer decreases the wetting ... |
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| Keywords: | carbon fiber(C_f) composite materials hot- pressed sintering shore hardness bending strength |
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