改进后光声压电技术对低活性铁素体/马氏体钢热扩散率的测量研究  

Thermal diffusivity of reduced activation ferritic/martensitic steel studied by modified photoacoustic piezoelectric technique

作　　者：赵斌兴[1] 王亚非[1] 高椿明[1] 王平怀[2] 顾体波[1] 刘丽娴[1] 孙启明[1] 

机构地区：[1]电子科技大学光电信息学院,成都610054 [2]核工业西南物理研究院,成都610041

出　　处：《核聚变与等离子体物理》2013年第3期283-288,共6页Nuclear Fusion and Plasma Physics

基　　金：四川省青年基金人才培养计划资助项目(2011JQ0025);中央高校基本科研业务费资助项目(E022050205);国家自然科学基金资助项目(50506006;61107078)

摘　　要：利用改进后的光声压电技术开展了对聚变堆用结构材料-低活性铁素体/马氏体钢(RAFM)CLF-1热扩散率的测量研究。首先,介绍了改进后的光声压电理论模型,并分析确定了高精度测量热扩散率的实验条件;其次,搭建实验系统,通过对参考样品镍的热扩散率检测,完成了测试系统的校准;最后,对RAFM钢CLF-1的热扩散率进行了测量研究。研究表明,RAFM钢CLF-1具有好的热扩散特性,是一种具有优质导热性的聚变堆结构材料。改进后的光声压电技术可以有效确定RAFM钢CLF-1的热扩散率,为聚变堆用结构材料的热物理特性研究提供了一种有效手段。Thermal diffusivity of reduced activation ferritic/martensitic （RAFM） steel CLF-1 has been determined by the modified photoacoustic piezoelectric （PAPE） technique. Firstly, the modified PAPE theoretical model is introduced and the experimental condition with high measurement precision are identified; Secondly, the experimental system is set up and calibrated by investigating the thermal diffusivity of nickel; Finally, the thermal diffusivity of RAFM steel CLF-1 is measured by the modified PAPE method. The results show that the RAFM steel CLF-1 has good thermal diffusion properties and is a fusion reactor structural material with excellent heat conductivity. The modified PAPE technique can determine the thermal diffusivity of RAFM steel CLF-leffectively, and provides an effective way to investigate the thermal-physical property of fusion reactor structural material.

关 键 词：热扩散率 低活性铁素体 马氏体钢(RAFM)改进后光声压电技术 

分 类 号：O436[机械工程—光学工程]