Acta Metall Sin  1998, Vol. 34 Issue (1): 45-50    DOI:

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PHASE COMPOSITION OF ZrM_2(M=Mn, V, Ni)HYDROGEN STORAGE ALLOYS

LEI Yongquan;ZHANG Wenkui;YANG Xiaoguang;WANG Qidong (Department of Materials Science and Engineering; Zhejiang University; Hangzhou 310027)LU Guanglie (Central Laboratory; Hangzhou University; Hangzhou 310028)

LEI Yongquan;ZHANG Wenkui;YANG Xiaoguang;WANG Qidong (Department of Materials Science and Engineering; Zhejiang University; Hangzhou 310027)LU Guanglie (Central Laboratory; Hangzhou University; Hangzhou 310028). PHASE COMPOSITION OF ZrM_2(M=Mn, V, Ni)HYDROGEN STORAGE ALLOYS. Acta Metall Sin, 1998, 34(1): 45-50.

Abstract References Related Articles Recommended Metrics Download:  PDF(490KB)  Export:  BibTeX | EndNote (RIS)       Abstract  The phase component and abundance in Zr(Mn0.45-xNi0.55)2 (x=0.10-0.40)Laves phase hydrogen storage alloy were investigated by X-ray multiphase Rietveld analysis. The results of Rietveld analysis showed that all the alloys were composed of C15, C14 type Laves phase and the residual phases such as Zr9M11 and ZrM phase. Laves phase and Zr9M11 phase existed in the studied composition range, however, ZrM phase only appeared in the range of x=0.20-0.40. When x=0.05 - 0.15, the alloys consisted of C15, C14 and Zr9 M11 phase, in which the main phase was of C15 type. At x=0.20-0.40, the alloys consisted of C15, C14, Zr9 M11 and ZrM, in which the main phase was the mixture of C15 and C14 phase. The phase abundance of Zr9 M11 had a little variation in the whole range, however, that of ZrM phase showed a bigger fluctuation. The lattice parameters of each phase appeared in alloys showed a tendency to increase as V content increases. On the basis of the calculation of averaged numbers of outer electrons, the occurrence of Laves phase was found to have correlation with electron factors. Key words:  X-ray diffraction      Rietveld analysis      Laves phase      hydrogen storage alloys      Received:  18 January 1998      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1998/V34/I1/45 1 Nakano H,Wakao S.J Alloys Comp,1995; 231:587 2 Ovshinsky S R,Fetcenko M A.Ross J Science,1993;260:176 3 Rietveld H M.Acta Crystallogr,1967;22:15 4 Malmros G,Thomas J O.J Appl Crystallogr,1977; 10:7 5 Young R A;Mackie P E,Von Dreele R B J Appl Crystallogr,1977; 10: 2629 6 Huot J,Akiba E,Ogura T,Ishido Y Denki Kauaku,1993; 12:1424 7 Huot J, Akiba E,Ogura T,Ishido Y.J Alloys Comp,1995,218:101 8 Huot J,Akiba E,Iba H.J Alloys Comp;1995; 228: 181 9 Yoshida M, Akiba M.J Alloys Comp,1995; 224: 121 10 吕光烈,刘顺洪,陈林深,吴红丽,雷永泉,于进云,杨晓光,王启东金属学报,1996;32:779(Lu Guanglie,Liu Shunhong,Chen Linshen;Wu Hongli; Lei Yongquan, Yu Jinyun, Yang Xiaoguang,Wang Qidong.Acta Metall Sin, 1996; 32: 779) 11 Zhang W K,Let Y Q,Yang X G,Wang Q D.Trans Nonferr Met Soc Chin,1997;4(in press) 12 Elliott R P,Rostoker W.Trans ASM,1958; 6: 617 [1] LI Shilei, LI Yang, WANG Youkang, WANG Shengjie, HE Lunhua, SUN Guang'ai, XIAO Tiqiao, WANG Yandong. 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