V系储氢合金及其合金化  

V Based Hydrogen Storage Alloys and Alloying Research

作　　者：裴沛[1] 张沛龙[1] 张蓓[2] 宋西平[1] 

机构地区：[1]北京科技大学新金属材料国家重点实验室,北京100083 [2]北京科技大学应用学院物理系,北京100083

出　　处：《材料导报》2006年第10期123-127,共5页Materials Reports

基　　金：北京市自然科学基金(2042015)

摘　　要：概述了V系储氢合金的研究现状,涉及V系储氢合金的氢化物相结构、合金化元素及第二相对合金吸、放氢性能的影响:V系储氢合金随吸氢量的增加,氢化物结构发生bcc→bct→fcc转变,同时其稳定性呈降低趋势;合金元素通过改变V与H的亲和力以及氢化物的稳定性来影响合金的储氢性能;第二相的出现对合金电化学性能、吸放氢动力学有明显的影响作用。在上述分析的基础上,对V系bcc固溶体储氢合金今后的研究进行了展望。This article summarizes the status of research in V based hydrogen storage alloys. Hydride of V based alloy,alloying elements and the secondary phase are discussed. The structure of hydrides in the V based alloys changes from bcc to bct to fcc with the increasing of hydrogen content,while its stability becomes more unstable; alloying elements change the properties of hydrogen storage alloys by modifying the affinity of V and H and by modifying stability of hydride; secondary phase has a significant effect on electrochemical characteristics and kinetic characteristics of this kind of alloy. According to the analysis above, further research on this kind of alloys are predicted.

关 键 词：储氰材料 储氧合金 V合金 V-Ti合金 

分 类 号：TG142.45[一般工业技术—材料科学与工程]