Fe_(0.85)Mn_(0.15)Ti_(0.9)M_(0.1)(M=Zr,V,Ca)合金的贮氢性能  

Hydrogen Storage Capabilities of the Alloys Fe_(0.85)Mn_(0.15)Ti_(0.9)M_(0.1) ( M=Zr,V,Ca)

作　　者：马建新[1] 潘洪革[1] 李寿权[1] 王新华[1] 陈长聘[1] 

机构地区：[1]浙江大学,杭州310027

出　　处：《稀有金属材料与工程》2000年第2期137-140,共4页Rare Metal Materials and Engineering

基　　金：国家"863"高技术资助项目!(批准号:715-010-011)

摘　　要：系统地研究了 Fe0 .85 Mn0 .1 5 Ti0 .9M0 .1 (M=Zr,V,Ca)合金的贮氢性能。研究结果表明 :Fe0 .85 Mn0 .1 5 Ti0 .9Zr0 .1 合金在室温下经几分钟的孕育期就可吸氢 ,但合金在氢化过程中形成了氢含量很高的α相 ,导致合金的贮氢量降低 ,同时还使 p- c- T曲线的平台特性变差 ;Fe0 .85 Mn0 .1 5 Ti0 .9V0 .1 合金的活化性能进一步得到改善 ,在室温下几乎不需要孕育期就可以吸氢 ,但同时要降低合金的贮氢量 ,而对合金的 p- c- T曲线平台特性影响不明显 ;用 Ca取代 Fe0 .85 Mn0 .1 5 Ti合金中的部分 Ti则对合金的贮氢性能影响不明显。通过 XRD分析认为 。The hydrogen storage capabilities of the alloys Fe 0 85 Mn 0 15 Ti 0 9 M 0 1 ( M =Zr,V,Ca) have been studied systematically. Compared with the alloy Fe 0 85 Mn 0 15 Ti , the alloy Fe 0 85 Mn 0 15 Ti 0 9 Zr 0 1 has good activation behavior, it can absorb hydrogen at room temperature after a short incubation period without previous thermal treatment. Because high hydrogen containing α phase was formed during hydrogenating, the hydrogen storage capacity of the modified alloy decreases, and the plateau characteristic of p c T curve of the alloy become worse. The activation behavior of the alloy Fe 0 85 Mn 0 15 Ti 0 9 V 0 1 is further improved. It can be hydrogenated at room temperature without any incubation period. The hydrogen capacity of the alloy also decreases slightly, while the plateau characteristic have no remarkable variation. The hydrogen storage capability of the alloy Fe 0 85 Mn 0 15 Ti is not changed appreciably when a small amount of Ti is replaced by Ca.XRD analysis results indicate that the hydrogen storage capability is related to the second phase when a small amount of Ti is replaced by other elements in the alloy Fe 0 85 Mn 0 15 Ti.

关 键 词：贮氢合金 贮氢性能 活化性能 氢化物 

分 类 号：TG139.7[一般工业技术—材料科学与工程]