宇航计测技术

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HOTDISK在低导热材料测试中的重复性分析

辛春锁1;何小瓦1   

  1. 1、航天材料及工艺研究所, 北京 100076
  • 出版日期:2013-04-15 发布日期:2013-04-15
  • 作者简介:辛春锁(1977-),男,博士,主要研究方向:材料的热物理性能测试技术。

Analysis on Repeatability of Measuring the Material with Low Thermal Conductivity By the HOTDISK

XIN Chun-suo1;HE Xiao-wa1   

  1. 1、Aerospace research institued of materials & processing technology, Beijing 100076
  • Online:2013-04-15 Published:2013-04-15

摘要: HOTDISK在工程材料导热系数测试中有着广泛应用。通过用HOTDISK对气凝胶粉体、保温毯和保温绝热板的测试,对比了不同时间段测试结果的波动情况,根据数据波动规律给出了测试过程中需要注意的事项和相应的改进建议。

关键词: 重复性, 瞬态平面热源法, 测试

Abstract: HOTDISK is widely used in thermal conductivity measurements of engineering materials. A series of homogeneous materials with a low thermal conductivity, such as aerogel powder, insulation blanket and insulation board, are measured with HOTDISK. Measuremet results at different times are compared with each other, compounding cautions and advises based on data varied with time are given.

Key words: Repeatability, Transient plane source method, Measurement