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OALib Journal期刊
ISSN: 2333-9721
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la1-xyxni4.8mn0.2合金的储氢性能*
Keywords: 金属材料,储氢,金属氢化物,金属氢化物压缩机
Abstract:
？研究了元素y(钇)对la1-xyxni4.8mn0.2(x=0.6,0.7,0.8)合金储氢性能的影响,结果表明:la1-xyxni4.8mn0.2合金为cacu5型六方结构;随着y含量的增加,晶格参数a和晶胞体积v减小,而c几乎不变,c/a线性增大;随着y含量的增加,合金的吸放氢平台压显著升高,吸氢量减少,吸放氢平台斜率sf和滞后系数hf略有增加,滞后系数hf与xrd(111)峰的半高宽(fwhm)值的变化有着很好的对应关系,抗粉化性能提高。当y含量x=0.8时,合金的吸放氢动力学综合性能最好。
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