人工晶体学报2024，Vol.53Issue(3)：503-510,550,9.
大尺寸金刚石激光闪射法热导率测试研究
Thermal Conductivity Test of Large-Size Diamond by Laser Flash Method
摘要
Abstract
In order to solve the problem of thermal conductivity test of large-size diamond,theφ100 mm sample holder of vertical mode and In-Plane mode was designed for the NETZSCH LFA467 HyperFlash instrument.The test results of theφ100 mm sample holder are proved to be credible from both principle and test results.From the theoretical analysis,it is concluded that the change of sample boundary conditions brought by the new sample holder has little effect on the test results.The thermal conductivity test results of theφ100 mm sample holder in the In-Plane mode are 6.5％higher than that of the standard sample holder,and the thermal conductivity test results of theφ100 mm sample holder in the vertical mode are 3.6％higher than that of the standard sample holder.The test results are still within the acceptable range.Theφ100 mm sample holder designed in this paper can testφ100 mm samples at most,which helps to protect the integrity of samples.In this paper,the non-destructive testing of thermal conductivity of large-size diamond by laser flash method is realized.关键词
金刚石/激光闪射法/热导率/大尺寸/热扩散系数Key words
diamond/laser flash method/thermal conductivity/large-size/thermal diffusivity分类
化学化工引用本文复制引用
张雅淋,安晓明,葛新岗,姜龙,李义锋..大尺寸金刚石激光闪射法热导率测试研究[J].人工晶体学报,2024,53(3):503-510,550,9.基金项目
国家磁约束核聚变能发展研究专项资助(2019YFE03100300) （2019YFE03100300）
河北省科学院科技计划项目重点学科提升工程资金(23A10) （23A10）
