Influence of CO on PCT Properties of LaNi_5, LaNi_(4.7)Al_(0.3) and MlNi_(4.5)Al_(0.5) Alloys  

作　　者：SANG Ge, TU Ming jing, YAN Kang ping, LI Quan an, CHEN Yun gui( Department of Metal Materials and Engeering, Sichuan University, Chengdu 610065, China ) 

出　　处：《Journal of Rare Earths》2000年第2期151-151,共1页稀土学报（英文版）

摘　　要：The PCT degradation behaviours of LaNi 5, LaNi 4.7 Al 0.3 and MINi 4.5 Al 0.5 alloys were investigated by measuring the difference between pure hydrogen and hydrogen containing CO. PCT plateaus are inclined after poisoning of all these alloys. LaNi 5 has no plateau. The plateaus of LaNi 4.7 Al 0.3 and MINi 4.5 Al 0.5 alloys are both lifted and inclined, the width of PCT cuve are shorter, and the absorbed hydrogen content is reduced drastically after poisoning. The resistance of alumiium substituted alloys to CO is therefore improved.The PCT degradation behaviours of LaNi 5, LaNi 4.7 Al 0.3 and MINi 4.5 Al 0.5 alloys were investigated by measuring the difference between pure hydrogen and hydrogen containing CO. PCT plateaus are inclined after poisoning of all these alloys. LaNi 5 has no plateau. The plateaus of LaNi 4.7 Al 0.3 and MINi 4.5 Al 0.5 alloys are both lifted and inclined, the width of PCT cuve are shorter, and the absorbed hydrogen content is reduced drastically after poisoning. The resistance of alumiium substituted alloys to CO is therefore improved.

关 键 词：rare earths CO hgdrogen storage alloys PCT POISON 

分 类 号：TG146[一般工业技术—材料科学与工程]