高导热碳/碳复合材料的制备

doi:10.3969/j.issn.1007-2861.2013.07.045

上海大学学报(自然科学版) ›› 2014, Vol. 20 ›› Issue (1): 51-58.doi: 10.3969/j.issn.1007-2861.2013.07.045

高导热碳/碳复合材料的制备

冯志海, 樊桢, 孔清, 余立琼, 徐林

航天材料及工艺研究所先进功能复合材料技术重点实验室, 北京 100076

收稿日期:2013-12-24 出版日期:2014-02-28 发布日期:2014-02-28
通讯作者: 冯志海(1965—), 男, 研究员, 博士生导师, 研究方向为复合材料. E-mail:fengzhh2006@sina.com

Preparation of High Thermal Conductivity C/C Composite

FENG Zhi-hai, FAN Zhen, KONG Qing, YU Li-qiong, XU Lin

Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China

Received:2013-12-24 Online:2014-02-28 Published:2014-02-28

摘要/Abstract

摘要： 以中间相沥青和中间相沥青基碳纤维为原料, 采用碳布热压法、液相浸渍法制备了二维和三维高导热碳/碳复合材料, 且所制得复合材料的热导率分别高达443和340 W/(m·K). 依据碳/碳复合材料的热导率模型, 分析了不同结构特征参数对材料热导率的影响. 结果表明, 基体碳热导率、孔隙率以及界面相厚度均会在一定程度上影响材料的导热性能.

关键词: 高导热碳/碳复合材料, 中间相沥青, 中间相沥青基碳纤维

Abstract: 2D high thermal conductivity C/C composite and 3D high thermal conductivity C/C composite were produced through hot pressing and liquid impregnating method, with mesophase pitch-based carbon fiber and mesophase pitch as raw materials. Thermal conductivity as high as 443 W/(m·K) and 340 W/(m·K) was achieved for 2D high thermal conductivity C/C composite and 3D high thermal conductivity C/C composite, respectively. The effects of structure parameters on the thermal conductivity were analyzed according to the analytical thermal model of C/C composites. The results show that thermal conductivity of carbon matrix, porosity and interface have different effects on the thermal conductivity of composites.

Key words: high thermal conductivity C/C composite, mesophase pitch, mesophase pitch-based carbon fiber

中图分类号:

TQ 342^+.742

冯志海, 樊桢, 孔清, 余立琼, 徐林. 高导热碳/碳复合材料的制备[J]. 上海大学学报(自然科学版), 2014, 20(1): 51-58.

FENG Zhi-hai, FAN Zhen, KONG Qing, YU Li-qiong, XU Lin. Preparation of High Thermal Conductivity C/C Composite[J]. Journal of Shanghai University（Natural Science Edition）, 2014, 20(1): 51-58.

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高导热碳/碳复合材料的制备

Preparation of High Thermal Conductivity C/C Composite

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