Zr基AB_2型储氢合金组织结构及电化学性能的研究  

Study on microstructures and electrochemical properties of zr -based AB_2 hydrogen storage alloys

作　　者：刘红[1] 白金兰[1] 张睿[1] 侯波[2] 

机构地区：[1]沈阳航空工业学院,沈阳110034 [2]沈阳工业学院,沈阳110016

出　　处：《机械设计与制造》2004年第6期91-92,共2页Machinery Design & Manufacture

摘　　要：采用XRD物相分析、扫描电镜分析、透射电镜分析及电化学性能测试等方法，分别对铸态及快淬态Laves相Zr基AB_2型储氢合金进行了组织结构及电化学性能方面的研究，结果表明，铸态合金由C15-Laves相，C14-Laves相及非Laves相Zr_9Ni_(11)(AB_2-1中)、Zr(Ni，Mn)Sn_(0.35)(AB_2-2和AB_2-3中)组成，AB_2-1的电化学性能明显好于另外两种合金。合金经过快淬处理后，由于部分非晶化，对电极的放电容量和活化性能都有严重的不良影响。The microstructures and electrochemical properties of as - cast and quenched Laves phase Zrbased AB_2 hydrogen storage alloys were investigated by XRD、SEM、TEM and electrochemical properties testing in this paper. The result indicates that the as - cast alloy is composed of cubic C15 Laves phase, hexagon C14 Laves phase and non - Laves phases such as Zr_9Ni_11 ( in AB_2 - 1 )、Zr(Ni, Mn) Sn_(0.35)( in AB_2 - 2 and AB_2 - 3 ) The electrochemical properties of AB_2 - 1 alloy is better than AB_2 - 2 and AB_2 - 3 alloys' . The electrochemical properties of quenched alloys are poor because of part amorphous existence.

关 键 词：锆基AB2型储氢合金 铸态合金 快淬态合金 组织结构 电化学性能 

分 类 号：TG113.1[金属学及工艺—物理冶金]