温度对铜碲硒铁合金热导率的影响  

Effect of Temperature on Thermal Conductivity of CuTeSeFe Alloy

作　　者：王继东[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004

出　　处：《机械工程材料》2009年第4期26-28,共3页Materials For Mechanical Engineering

摘　　要：采用光学显微镜、热分析仪、X射线衍射仪、扫描电镜、能谱仪及热常数测试仪等测试分析了铜碲硒铁合金在25－400℃温度范围内的显微组织、物相组成及热导率的变化情况。结果表明：铜碲硒铁合金在25－400℃温度范围内组织较稳定，无新相生成；在25－400℃温度范围内该合金的热导率随温度变化不大，在200℃时，热导率最小为5．497W·cm^-1·K^-1，而在25℃时，热导率最大为5．898W·cm^-1·K^-1。The microstructure, phase composition and thermal conductivity of CuTeSeFe alloy in the temperature range of 25--400 ℃ were measured and analyzed by optical microscopy, DSC, XRD, SEM/EDS and thermal constant tester. The results show that CuTeSeFe alloy in the temperature range of 25--400 ℃ possessed reletively good microstructure stability and no new phases formed. The thermal conductivity of CuTeSeFe alloy changed a little with the temperature in the range of 25-400℃, and reached its lowest value of 5. 497 W · cm^-1· K^-1 at 200℃ and its highest value of 5. 898 W ·cm^-1 · K^-1 at 25℃.

关 键 词：铜碲硒铁合金 热导率 温度 

分 类 号：TG146.1[一般工业技术—材料科学与工程]