液态金属磁流体发电机中固液金属界面接触电阻的研究  

Research on the Contact Resistance on the Solid-liquid Metal Interface of a LMMHD Generator

作　　者：刘艳娇[1,2] 夏琦[1] 李然[1] 赵凌志[1] 彭燕[1] 

机构地区：[1]中国科学院电工研究所,北京100190 [2]中国科学院大学北京100190

出　　处：《电测与仪表》2014年第22期110-114,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(51177158);国家海洋可再生能源专项资金(GHME2011BL05)

摘　　要：液态金属磁流体(Liquid Metal Magnetohydrodynamic,LMMHD)发电机是磁流体波浪能直接发电系统的一个关键部件。液态金属发电工质与固体电极间的电接触性能,直接影响LMMHD发电机的输出特性和发电效率。文中首先分析了LMMHD发电机的接触电阻及其影响因素,提出了一种固液金属界面接触电阻的测量方法,并实验研究了液态镓合金和固体紫铜电极间的静态接触电阻。A Liquid Metal Magnetohydrodynamic（ LMMHD）generator is a key component of the MHD wave energy direct generating system. The electrical-contact performance between the liquid metal and solid electrodes directly af-fects the output characteristics and power efficiency of the LMMHD generator. This paper analyzed the contact resist-ance of the LMMHD generator and its affecting factors first. Then a new measurement method of the contact resistance on the solid-liquid metal interface was put forward and experiments were conducted to study the static contact resist-ance between the liquid gallium alloy and the solid copper electrodes.

关 键 词：波浪能 液态金属磁流体的 固液金属界面 接触电阻 测量 

分 类 号：TM201[一般工业技术—材料科学与工程]