江西科学2011，Vol.29Issue(6)：740-744,5.
Cu含量及纯度对Mo-Cu合金热物理性能的影响
Effect of Cu Content and Purity on Thermal Properties of Mo-Cu Alloy
摘要
Abstract
The effect of the different Cu content and purity on the thermal properties of Mo-Cu alloy was studied. The results show that the thermal conductivity （TC） of the alloys increases obviously with the increasing of Cu content, and the measured values of the TC are all lower than the calculated ones ,and the deviation ratio between two values is also different, this is mainly because that the process of sintering and relative density are also different when the adding Cu contents are different. Cu phase purity is the quite sensitive factor for the TC of alloys, and the TC decline evidently when the purity of copper are changing only within 99.8% ~ 97%. The coefficient of thermal expansion （CTE） of Mo-Cu alloy increase in corresponding with the adding of Cu ,but Cu purity have slightly impact on the changing Cu purity,and all below strate. of the CTE, and the CTE value is a little rising with the downgrading of the 10 × 10-6/K, so as to match the sealing requirements for heat sink sub-关键词
Mo—Cu合金/热导率/热膨胀系数Key words
Mo-Cu Alloy/Thermal conductivity/Coefficient of thermal expansion分类
通用工业技术引用本文复制引用
邹爱华,邹晋,董应虎,周贤良..Cu含量及纯度对Mo-Cu合金热物理性能的影响[J].江西科学,2011,29(6):740-744,5.基金项目
江西省铜钨新材料重点实验室开放基金资助 （）
江西省教育厅基金 （）
航空材料热加工技术重点实验室开放基金 （）
江西省自然科学基金（2010GZC0163）. （）
