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研究了Zr部分替代稀土RE对RE(NiCoMnTi)。合金的相结构及电化学性能的影响.结果表明,在0<x≤0.3的组成范围内. RE1-xZrx(NiICoMnTi)5合金中均出现 ZrNi。相,且其含量随 Zr替代量。的增加而增多; LaNi。主相的晶胞体积随。的增加而增大,而zrm。相的晶胞体积则逐渐减小因ZrNi5第二相的形成,RE1-xZrx(NiCoMnTi)。合金的最大放电容量随 Zr替代量x的增加而降低. ZrNis相以连续网状沿 LaNi5主相的晶界分布,对贮氢合金晶粒起了微包覆的保护作用,减轻了充放电循环过程中合金的粉化和氧化,从而显著提高了合金的循环稳定性.
The partial substitution of Zr for RE (NiCoMnTi) was studied. Phase Structure and Electrochemical Properties of Alloys. The result shows that it is within the composition range of 0
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