...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Thermophysics and Heat Transfer >In-Plane Thermal Conductivity in Thin Carbon Fiber Composites
【24h】

In-Plane Thermal Conductivity in Thin Carbon Fiber Composites

机译：薄碳纤维复合材料的面内导热系数

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The objective of this study was to determine whether fiber type, fiber angle, and filler material affected the in-plane thermal conductivity of thin (7-15 mils thickness) carbon fiber composites. Two sets of samples were tested: low thermal conductivity samples made with polyacrylonitrile-based fibers (k = 6.8 W/m·K) in Fiberglast epoxy resin, and high thermal conductivity samples fabricated with coal-pitch-based fibers (k = 620 W/m·K) in cyanate ester resin. Samples were fabricated from 0/90 woven cloths and warped to obtain a range of fiber-pattern angles from 25/ - 25 to 65/ - 65. The filler effect on thermal conductivity was evaluated on additional samples prepared with 10% volume fraction of graphite powder in the matrix. Thermal conductivity of the low thermal conductivity samples was in the range of 15-20 W/m·K and showed up to a 15% improvement when the angle of the fibers was varied. High thermal conductivity samples showed thermal conductivities between 60 and 150 W/m·K, with an improvement up to 60% when the angle of the fibers relative to the heat flux direction was changed from 0/90 to 25/ -25. The samples with graphite powder did not show any enhancement in thermal performance. As potential alternatives, unidirectional tape and eGraPs Spreadershield® foils were also tested, showing good thermal performance.
机译：这项研究的目的是确定纤维类型，纤维角度和填充材料是否影响薄（7-15密耳厚）碳纤维复合材料的面内导热率。测试了两组样品：由在Fiberglast环氧树脂中的聚丙烯腈基纤维（k = 6.8 W / m·K）制造的低导热率样品，以及由煤沥青基纤维制成的高导热率样品（k = 620 W） / m·K）。用0/90机织织物制成样品，并对其进行扭曲以获得25 /-25到65 /-65的纤维图案角度范围。对使用10％体积分数的石墨制备的其他样品评估了填料对导热系数的影响基质中的粉末。低热导率样品的热导率在15-20 W / m·K的范围内，并且当改变纤维的角度时，显示出高达15％的提高。高热导率样品的热导率在60至150 W / m·K之间，当纤维相对于热通量方向的角度从0/90变为25 / -25时，热导率提高了60％。石墨粉样品的热性能没有任何提高。作为潜在的替代品，还对单向胶带和eGraPsSpreadershield®箔进行了测试，显示出良好的热性能。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号