【摘要】 测试和分析了新型超声气体雾化双相复合 ＭｌＮｉ３．７Ａ１０．４Ｃｕ０．４微晶贮氢合金的微观组织结构 及电化学活化性能结果表明，这种贮氢合金的微观结构为双相复合结构，基体为ＡＢ５（Ａ＝Ｌａ，Ｃｅ，Ｎｄ， Ｐｒ， Ｂ＝Ｎｉ， Ａｌ， Ｃｕ）相，富稀土的 ＡＢ相在基体中呈不连续网状分布，在相界面存在淬火裂纹。电化学 活化性能优越，活化次数仅为 １～３次。更多还原

【Abstract】 Microstructure and activation properties of a new microcrystalline MINi3.7AIo.4Cuo.4 hydrogen－storage alloy prepared by gas atomization was investigated in this paper. The it was shown that there exists eutectic double－phase structure consisting of ABS base phase and AB second phase along grain boundaries. The activating property measured was in an advantageous position with only 1-3 cycles, which was attributed to the appearance of large quantities of fresh surfaces within powder particle as a result of the difference in hydrogen--absorbing ability between AB5 and AB phases.更多还原