Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg

M. Zhu; W. H. Zhu; C. Y. Chung; Z. X. Che; Z. X. Li

doi:10.1016/S0925-8388(99)00406-5

Author(s)

M. Zhu
W. H. Zhu
C. Y. Chung
Z. X. Che
Z. X. Li

Detail(s)

Original language	English
Pages (from-to)	531-535
Journal / Publication	Journal of Alloys and Compounds
Volume	293
Publication status	Published - 20 Dec 1999

Conference

Title	Proceedings of the 1998 International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications (MH98)
City	Hangzhou, China
Period	4 - 9 October 1998

Link(s)

DOI	DOI https://doi.org/10.1016/S0925-8388(99)00406-5 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-0033285613&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(3b7d6edc-c55d-4369-b94c-a6d26f2f34f8).html

Abstract

In this work high energy ball milling was used to prepare composite hydrogen storage alloy in the MmNi_5-xM_x-Mg system. X-ray diffraction and TEM analysis were used to characterize the microstructure of the composite alloy obtained by ball milling. It has been shown that the grain size of MmNi_5-xM_x and Mg components were reduced to nanometre range after about 20 h of milling. Besides, a Mm₂Mg₁₇ phase of nanometre size was also formed in the milling process. Thus, a composite alloy, referred to as nano-phase composite here, composed of MmNi_5-xM_x, Mg and Mm₂Mg₁₇ phase of nanometre size was obtained. Hydrogen storage behaviour of the nano-phase composite was compared with that of conventional MmNi_5-xM_x alloy by measuring PCT and kinetics. It showed that the hydrogen absorption properties were improved.

Citation Format(s)

[ RIS ] [ BibTeX ]

Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg. / Zhu, M.; Zhu, W. H.; Chung, C. Y.; Che, Z. X.; Li, Z. X.

In: Journal of Alloys and Compounds, Vol. 293, 20.12.1999, p. 531-535.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Zhu, M, Zhu, WH, Chung, CY, Che, ZX & Li, ZX 1999, 'Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg', Journal of Alloys and Compounds, vol. 293, pp. 531-535. https://doi.org/10.1016/S0925-8388(99)00406-5

Zhu, M., Zhu, W. H., Chung, C. Y., Che, Z. X., & Li, Z. X. (1999). Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg. Journal of Alloys and Compounds, 293, 531-535. https://doi.org/10.1016/S0925-8388(99)00406-5

Zhu M, Zhu WH, Chung CY, Che ZX, Li ZX. Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg. Journal of Alloys and Compounds. 1999 Dec 20;293:531-535. https://doi.org/10.1016/S0925-8388(99)00406-5

Zhu, M. ; Zhu, W. H. ; Chung, C. Y. ; Che, Z. X. ; Li, Z. X. / Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg. In: Journal of Alloys and Compounds. 1999 ; Vol. 293. pp. 531-535.