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...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。展开更多
The growth characteristic of intermetallics during the reaction of solid (Cu,Ag,Au,Fe,Co,Ni,etc) with liquid (Sn,Sb,Bi,Zn) within a very short time of 1～ 2 s at different temperatures has been studied by metallograph...The growth characteristic of intermetallics during the reaction of solid (Cu,Ag,Au,Fe,Co,Ni,etc) with liquid (Sn,Sb,Bi,Zn) within a very short time of 1～ 2 s at different temperatures has been studied by metallographic method for explaining the process in the fillet during soldering. It is indicated that the incongruent compourds often grow up as bamboo shoot form. But congruent compounds grow up basically just by spreading out as a layer along the solid border. Base on these facts,the influence of intermetallics in the fillet during soldering has been discussed.展开更多
文摘液态金属磁流体(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。
文摘The growth characteristic of intermetallics during the reaction of solid (Cu,Ag,Au,Fe,Co,Ni,etc) with liquid (Sn,Sb,Bi,Zn) within a very short time of 1～ 2 s at different temperatures has been studied by metallographic method for explaining the process in the fillet during soldering. It is indicated that the incongruent compourds often grow up as bamboo shoot form. But congruent compounds grow up basically just by spreading out as a layer along the solid border. Base on these facts,the influence of intermetallics in the fillet during soldering has been discussed.
