EFFECTS OF MECHANICAL ALLOYING ON THE HYDROGEN STORAGE CHARACTERISTICS OF MG-XWT-PERCENT NI (X=0, 5, 10, 25 AND 55) MIXTURES
EFFECTS OF MECHANICAL ALLOYING ON THE HYDROGEN STORAGE CHARACTERISTICS OF MG-XWT-PERCENT NI (X=0, 5, 10, 25 AND 55) MIXTURES
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DOI：
10.1016/0360-3199(94)e0024-s
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发表时间：
1995-03-01
影响因子：
7.2
通讯作者：
SONG, MY
中科院分区：
文献类型：
--
作者：
SONG, MY
镁与镍在行星轧机中机械合金化。不含镍的镁也在相同条件下处理。研究了这些材料的吸放氢性能。机械合金化Mg-xwt % Ni（x = 5，10，25和55）混合物沿着循环放氢过程中Mg 2Ni相的形成。机械合金化和循环放氢的主要效果是增加了活性形核位置和减小了有效颗粒尺寸。在本实验条件下，机械合金化和放氢循环对Mg-25wt%Ni合金中Mg的放氢和放氢反应的影响最大。
Magnesium is alloyed mechanically with nickel in a planetary mill. Magnesium without nickel is also treated under the same conditions. The hydriding and dehydriding properties of these materials are investigated. The Mg2Ni phase develops in the mechanically alloyed Mg-xwt % Ni (x = 5, 10, 25 and 55) mixtures along with hydriding-dehydriding cycles. The principal effects of mechanical alloying and hydriding-dehydriding cycling are the augmentation in the active nucleation sites and the decrease in the effective particle size. The effects of mechanical alloying and hydriding-dehydriding cycling on the hydriding and dehydriding reactions of Mg in the mixtures are most important in Mg-25wt % Ni under our experimental conditions.