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首页> 外文会议>International astronautical congress >HEAT TREATMENT TEMPERATURE EFFECT ON THE THERMAL-PHYSICAL PROPERTIES OF CARBON/CARBON COMPOSITES
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HEAT TREATMENT TEMPERATURE EFFECT ON THE THERMAL-PHYSICAL PROPERTIES OF CARBON/CARBON COMPOSITES

机译：热处理温度对碳/碳复合材料热物理性能的影响

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摘要

Carbon fiber/carbon matrix (C/C) material is a carbon fiber reinforced carbon matrix composite, which has high strength and elastic modulus, good thermal conductivity, excellent characteristics of resistance to erosion and high chemical stability, mechanical strength at high temperature. It has been successfully used in the aviation engine nozzle and thermal assemblies of the firebox as well as brake discs for airplane in the aeronautical, astronautical, military, and civil fields. In this paper, C/C composites were treated by different temperatures (1800,2000,2200,2400,2600). The electrical and thermal properties at the range of RT—1300 of these C/C composites were studied. The results show that, when the C/C composites were treated by 1800,2000and 2200,the resistance and thermal conductivity decrease as the increasing of the testing temperature. The resistance and thermal conductivity of the C/C composite treated at 1800 have the largest decline. When the C/C composites were treated by 2400or2600, the resistance and thermal conductivity increase with the testing temperature in the range of RT—1300.
机译：碳纤维/碳基质（C / C）材料是一种碳纤维增强的碳基质复合材料，具有高强度和弹性模量，良好的导热性，优异的抗腐蚀性能和较高的化学稳定性以及高温下的机械强度。它已成功用于航空箱，火箱的热组件以及航空，航天，军事和民用领域的飞机制动盘。本文对C / C复合材料进行了不同的温度处理（1800,2000,2200,2400,2600）。研究了这些C / C复合材料在RT-1300范围内的电学和热学性质。结果表明，当1800、2000和2200分别对C / C复合材料进行处理时，随着试验温度的升高，电阻率和导热系数均降低。在1800℃处理的C / C复合材料的电阻和热导率下降最大。当C / C复合材料用2400或2600进行处理时，电阻和热导率会随着测试温度在RT-1300范围内的增加而增加。

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