稀有金属材料与工程
稀有金屬材料與工程
희유금속재료여공정
RARE METAL MATERIALS AND ENGINEERNG
2011年
1期
14-17
,共4页
许斌%金滔%李聪航%汤珂%陈立新%陈国邦
許斌%金滔%李聰航%湯珂%陳立新%陳國邦
허빈%금도%리총항%탕가%진립신%진국방
Er3Ni%氢化%氢化物%吸氢量
Er3Ni%氫化%氫化物%吸氫量
Er3Ni%경화%경화물%흡경량
Er3Ni%hydrogenation%hydride%hydrogen adsorption capacity
采用Er3Ni吸氢反应装置对样品进行充分活化后,分析粒度、反应温度和反应平衡压力对Er3Ni氢化反应的孕育时间和吸氢量的影响,分析同反应条件下Er3Ni的氢化反应过程及产物特性,为探索其作为低温制冷机新型回热材料的可行性创造条件.
採用Er3Ni吸氫反應裝置對樣品進行充分活化後,分析粒度、反應溫度和反應平衡壓力對Er3Ni氫化反應的孕育時間和吸氫量的影響,分析同反應條件下Er3Ni的氫化反應過程及產物特性,為探索其作為低溫製冷機新型迴熱材料的可行性創造條件.
채용Er3Ni흡경반응장치대양품진행충분활화후,분석립도、반응온도화반응평형압력대Er3Ni경화반응적잉육시간화흡경량적영향,분석동반응조건하Er3Ni적경화반응과정급산물특성,위탐색기작위저온제랭궤신형회열재료적가행성창조조건.
In order to better understand the mechanism of the reaction characteristics of Er3Ni hydrogenation, a self-built hydrogen-adsorption experimental apparatus was used to study the effects of particle size, reaction temperature and pressure on the induction time of Er3Ni hydrogenation reaction and the hydrogen adsorption capacity, based on which the hydrogenation characteristics of Er3Ni were then discussed. The results show mat activation has a great effect on hydrogen absorption capacity of Er3Ni. The influence of particle size of Er3Ni is mainly on the induction time. Lower reaction temperature needs longer induction time of accumulating energy to overcome the energy barrier of hydrogenation. The value x in Er3NiHx is insensitive to the reaction equilibrium pressure. Hydrides Er3NiHx reaches equilibrium at an extremely low pressure, about 10 kPa.
