Nd含量对快淬纳米晶和非晶(Mg24Ni10Cu2)100-xNdx（x=0～20）合金电化学性能的影响（英文）

被引：12

作者：

张羊换 ^{[1
,2
]}

杨泰 ^{[2
]}

卜文刚 ^{[1
,2
]}

蔡颖 ^{[1
]}

张国芳 ^{[1
]}

赵栋梁 ^{[2
]}

机构：

[1] 内蒙古科技大学内蒙古自治区白云鄂博矿多金属资源综合利用重点实验室

[2] 钢铁研究总院功能材料研究所

来源：

TransactionsofNonferrousMetalsSocietyofChina | 2013年 / 23卷 / 12期

关键词：

贮氢; 合金; Mg2Ni型合金; Nd; 快淬; 相结构;

D O I：

暂无

中图分类号：

TG146.22 [];

学科分类号：

080502 ;

摘要：

采用快淬技术制备Mg2Ni型纳米晶和非晶(Mg24Ni10Cu2)100-xNdx(x=0,5,10,15,20)合金,研究快淬速度对合金相结构和电化学性能的影响。结果表明,快淬态无Nd合金为纳米晶结构,而添加Nd元素的快淬态合金为纳米晶和非晶结构,表明添加Nd元素可促进Mg2Ni型合金的非晶形成能力。当快淬速度从0增加至40 m/s时,x=0合金的放电容量从42.5增加至100.6 mA·h/g;x=10合金的放电容量从86.4增加至452.8 mA·h/g。与此同时,x=0合金的循环稳定性(S20)也由40.2%增加到41.1%,而x=10合金的S20值由53.2%增加到89.7%。

引用

页码：3668 / 3676

页数：9

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