| 高导热碳/碳复合材料的制备 |
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| 引用本文： | 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. |
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| 作者姓名： | 冯志海 樊桢 孔清 余立琼 徐林 |
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| 作者单位： | 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 |
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| 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.
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| 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 |
| 收稿时间： | 2013-12-24 |
Preparation of High Thermal Conductivity C/C Composite |
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| 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),2014,20(1):51-58. |
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| Authors: | FENG Zhi-hai FAN Zhen KONG Qing YU Li-qiong XU Lin |
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| Institution: | Key Laboratory of Advanced Functional Composite Materials, Aerospace Research Institute of Materials & Processing Technology, Beijing 100076, China |
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| 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. |
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| Keywords: | high thermal conductivity C/C composite mesophase pitch mesophase pitch-based carbon fiber |
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