论文部分内容阅读
在新能源材料研究中,LaNi_5型贮氢材料引起人们的极大兴趣,尤其重视研究第三元素取代后的LaNi_(5-x)Mx(M为过渡族元素)合金的贮氢性能。本文研究以Fe代Ni后含La16.7at.-％的Ni-Fe-La三元合金状态图及合金成分与贮氢性能的关系。一、实验部分熔制合金所用的原料是纯度为99.9at.-％的Fe和Ni,纯度为99.5at.-％的La,按照LaNi_(5-x)Fe_x的不同化学组分配制,在非自耗真空电弧炉内充高纯Ar保护熔炼。共制备15个样品,每个样品重量约为30g,每种合金经6次以上反复熔炼。熔制后的试样
In the research of new energy materials, LaNi_5 type hydrogen storage material has drawn great interest, with particular emphasis on the hydrogen storage properties of the LaNi_ (5-x) Mx (M is a transitional element) after the substitution of the third element. In this paper, the Ni-Fe-La ternary alloy containing La16.7at .-% after Ni-Fe-Ni was prepared and the relationship between alloy composition and hydrogen storage properties was studied. First, the experimental part of the molten alloy used in the raw material is 99.9at .-% Fe and Ni purity of 99.5at .-% of La, according LaNi_ (5-x) Fe_x different chemical composition, Consumption of vacuum arc furnace filled with high purity Ar protection melting. A total of 15 samples were prepared, each sample weighing about 30g, each alloy by more than 6 repeated melting. After melting the sample