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材料工程  2018, Vol. 46 Issue (6): 101-105    DOI: 10.11868/j.issn.1001-4381.2017.001159
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
碳纤维表面涂层对碳纤维增强锂铝硅玻璃陶瓷复合材料热导率的影响
于长清1,2, 陈利1, 裴雨辰2
1. 天津工业大学 复合材料研究所 先进纺织复合材料教育部 重点实验室, 天津 300387;
2. 中国航天科工集团 航天 特种材料及工艺技术研究所, 北京 100074
Effect of Carbon Fiber Coating on Thermal Conductivity of Carbon Fiber Reinforced Lithium Alumina Silicate Glass-ceramics Composites
YU Chang-qing1,2, CHEN Li1, PEI Yu-chen2
1. Key Laboratory of Advanced Textile Composites, Institute of Composite Materials, Tianjin Polytechnic University, Tianjin 300387, China;
2. Institute of Aerospace Special Materials and Processing Technology, China Aerospace Science & Industry Corp., Beijing 100074, China
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摘要 通过溶胶浸渍的方法在碳纤维表面涂覆锂硅溶胶,在高温热处理后,在碳纤维表面形成了二阶和四阶石墨插层化合物。采用涂层处理后碳纤维制备碳纤维增强锂铝硅(Cf/LAS)玻璃陶瓷复合材料。结果表明,碳纤维表面石墨插层化合物的形成,显著提高了Cf/LAS复合材料的热传导能力,提高热压烧结温度有利于热导率的提高。碳纤维表面无涂层处理的Cf/LAS复合材料的热导率在1.1~1.3W/(m·K)之间,碳纤维表面经过涂层处理后,Cf/LAS复合材料的热导率从1.3W/(m·K)提高到2.2W/(m·K),提高了70%。
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于长清
陈利
裴雨辰
关键词 碳纤维锂铝硅玻璃陶瓷复合材料热导率    
Abstract:The carbon fibers with two and four order graphite intercalation were fabricated by high temperature heat treatment of carbon fibers coated by lithium-silicate sol using sol impregnation method. After that, the as-prepared carbon fibers were applied to synthesize carbon fiber reinforced lithium alumina silicate (Cf/LAS) glass-ceramic composites. The results indicate that the increase of sintering temperature and the formation of graphite intercalated compounds on the surface of carbon fibers can significantly improve the thermal conductivity of Cf/LAS composites. Compared to the Cf/LAS composites without coatings 1.1-1.3W/(m·K), the thermal conductivity of Cf/LAS composites with coating treatment increases from 1.3W/(m·K) to 2.2W/(m·K), with the increase of 70%.
Key wordscarbon fiber    LAS    glass-ceramics composites    thermal conductivity
收稿日期: 2017-09-17      出版日期: 2018-06-14
中图分类号:  TB332  
通讯作者: 于长清(1980-),男,高级工程师,博士研究生,主要从事陶瓷基复合材料研究,联系地址:北京市丰台区云岗北里40号院(100074),E-mail:yuchangqing1980@163.com     E-mail: yuchangqing1980@163.com
引用本文:   
于长清, 陈利, 裴雨辰. 碳纤维表面涂层对碳纤维增强锂铝硅玻璃陶瓷复合材料热导率的影响[J]. 材料工程, 2018, 46(6): 101-105.
YU Chang-qing, CHEN Li, PEI Yu-chen. Effect of Carbon Fiber Coating on Thermal Conductivity of Carbon Fiber Reinforced Lithium Alumina Silicate Glass-ceramics Composites. Journal of Materials Engineering, 2018, 46(6): 101-105.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.001159      或      http://jme.biam.ac.cn/CN/Y2018/V46/I6/101
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