金属学报  1986, Vol. 22 Issue (5): 106-111

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混合稀土金属(Mm)和MmNi_5的相关系及其吸氢性能的研究

车广灿;梁敬魁;俞育德

中国科学院物理研究所;中国科学院物理研究所;中国科学院物理研究所

STUDIES OF PHASE RELATIONS BETWEEN MISCHMETAL (Mm) AND MmNi_5 TOGETHER WITH THEIR HYDROGEN ABSORPTION PROPERTIES

CHE Guangcan; LIANG Jingkui; YU Yude (Institute of Physics; Academia Sinica; Beijing)

车广灿;梁敬魁;俞育德. 混合稀土金属(Mm)和MmNi_5的相关系及其吸氢性能的研究[J]. 金属学报, 1986, 22(5): 106-111.
, , . STUDIES OF PHASE RELATIONS BETWEEN MISCHMETAL (Mm) AND MmNi_5 TOGETHER WITH THEIR HYDROGEN ABSORPTION PROPERTIES[J]. Acta Metall Sin, 1986, 22(5): 106-111.

摘要 参考文献 相关文章 Metrics 全文: PDF(453 KB)   摘要: <正> LaNi_5是一个性能良好、具有使用价值的吸氢材料。为了降低它的成本,用混合稀土金属代替La,国内外都做了一些工作,但从相图角度,弄清楚MmNi_5的相关系以及MmNi_5的组成对其性能的影响的研究尚不多,也欠系统。我们曾进行了LaNi_5-CeNi_5,LaNi_5-NdNi_5,LaNi_5-LaCu_5系相图及其吸氢性能的研究。本文主要研究混合稀土金属的相关系,MmNi_5的相结构及组成对吸氢性能的影响。 Abstract：X-ray diffraction, DTA and other methods were used to determine the phase relations between native mischmetal (Mm) and MmNi_5 as well as the phase diagram of LaNi_5-PrNi_5 pseudo-binary system. The hydrogen desorption capacities and hydrogen adsorption plateau pressure of LaNi_5-PrNi_5 (CeNi_5, NdNi_5) system varied with the compositions of specimens and the hydrogen absorption properties of La-rich and Ce-rich MmNi_5 were also studied. The free energy, △Z, the enthalpy, △H, and the entropy, △S, of the hydride of La-rich MmNi_5 were estimated to be 6.14 kJ/mol H_2,-20.92 kJ/mol H_2 and-90.8 J/K.mol H_2 respectively. 收稿日期: 1986-05-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 车广灿 梁敬魁 俞育德 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1986/V22/I5/106 1 车广灿;俞育德;梁敬魁,物理学报,33(1984) ,770． 2 梁敬魁;王朝果,金属学报,18(1982) ,592． 3 Che Guangcan (车广灿), Proc. of Beijing Int. Symp. on Hydrogen Systems, Pergamon Press New York, 1985． p. 56． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed