摘要
研究了Ti1+xCr1．2Mn0．8(x=0．0,0．1,0．2,0．3)系和Ti1+xCr1．2Mn0．8-yMy(M=Fe,Ni,Cu,V,VFe; x=0．0,0．1;y=0．1,0．3)系AB2型合金的储氢性能和晶体结构．XRD结果表明,合金主相为C14(MgZn2)型Laves 相,可以保证较高的吸、放氢量．通过A侧过化学计量以及B侧用Fe,Ni,Cu,V,VFe分别替代部分Mn,增加了点阵常数和晶胞体积,降低了P-C-T曲线的滞后．由相应数据寻找出适合于金属氢化物氢压缩机的高压端储氢合金．结果表明,合金 TiCr1．2Mn0．6Fe0．3与Ti1．1Cr1．2Mn0．5Cu0．3具有良好的储氢性能和压缩特性,可以作为性能优良的高压端储氢合金．
The hydrogen storage properties and crystal structures of Ti1＋xCr1.2Mn0.8（x=0.0,0.1,0.2,0.3）and Ti1＋xCr1.2Mn0.8-6My（M=Fe,Ni,Cu,V,VFe;x=0.0,0.1;y=0.1,0.3） have been studied systematically. XRD patterns proved that the two series of hydrogen storage alloys have the same crystal structure, C14（MgZn2） typed Laves phase, which is suitable for hydrogen absorption and desorption with great amount. The lattice parameter a, c and cell volume V increase with increasing Ti content and substitution of Mn by Fe, Ni, Cu, V and VFe, while the hysteresis factors of P-C-T curves decrease. In order to develop hydrogen storage alloys for the metal hydride hydrogen compressor （MHHC）, the effect of the substitution elements have been investigated, and the results show that both alloys, TiCr1.2Mn0.5Fe0.3 and Ti1.1Cr1.2Mn0.5Cu0.3 have high hydrogen storage capacities and high compression ratios.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第6期641-646,共6页
Acta Metallurgica Sinica
基金
国家建设部研究开发项目05-K4-3
甘肃省国际科技合作重点项目4WS054-A72-040
兰州交通大学光电技术与智能控制教育部重点实验室开放基金项目K04111资助
关键词
Ti—Cr基合金
储氢性能
晶体结构
压缩特性
Ti-Cr base hydrogen storage alloy, hydrogen storage property, crystal structure, compression property
