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

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

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

26 Citations (Scopus)

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.

Original language	English
Pages (from-to)	531-535
Journal	Journal of Alloys and Compounds
Volume	293
DOIs	https://doi.org/10.1016/S0925-8388(99)00406-5
Publication status	Published - 20 Dec 1999
Event	Proceedings of the 1998 International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications (MH98) - Hangzhou, China Duration: 4 Oct 1998 → 9 Oct 1998

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@article{3b7d6edcc55d4369b94ca6d26f2f34f8,

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

abstract = "In this work high energy ball milling was used to prepare composite hydrogen storage alloy in the MmNi5-xMx-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 MmNi5-xMx 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 MmNi5-xMx, Mg and Mm2Mg17 phase of nanometre size was obtained. Hydrogen storage behaviour of the nano-phase composite was compared with that of conventional MmNi5-xMx alloy by measuring PCT and kinetics. It showed that the hydrogen absorption properties were improved.",

author = "M. Zhu and Zhu, \{W. H.\} and Chung, \{C. Y.\} and Che, \{Z. X.\} and Li, \{Z. X.\}",

year = "1999",

month = dec,

day = "20",

doi = "10.1016/S0925-8388(99)00406-5",

language = "English",

volume = "293",

pages = "531--535",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

note = "Proceedings of the 1998 International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications (MH98) ; Conference date: 04-10-1998 Through 09-10-1998",

}

TY - JOUR

T1 - Microstructure and hydrogen absorption properties of nano-phase composite prepared by mechanical alloying of MmNi5-x(CoAlMn)x and Mg

AU - Zhu, M.

AU - Zhu, W. H.

AU - Chung, C. Y.

AU - Che, Z. X.

AU - Li, Z. X.

PY - 1999/12/20

Y1 - 1999/12/20

N2 - In this work high energy ball milling was used to prepare composite hydrogen storage alloy in the MmNi5-xMx-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 MmNi5-xMx 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 MmNi5-xMx, Mg and Mm2Mg17 phase of nanometre size was obtained. Hydrogen storage behaviour of the nano-phase composite was compared with that of conventional MmNi5-xMx alloy by measuring PCT and kinetics. It showed that the hydrogen absorption properties were improved.

AB - In this work high energy ball milling was used to prepare composite hydrogen storage alloy in the MmNi5-xMx-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 MmNi5-xMx 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 MmNi5-xMx, Mg and Mm2Mg17 phase of nanometre size was obtained. Hydrogen storage behaviour of the nano-phase composite was compared with that of conventional MmNi5-xMx alloy by measuring PCT and kinetics. It showed that the hydrogen absorption properties were improved.

UR - https://www.scopus.com/pages/publications/0033285613

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0033285613&origin=recordpage

U2 - 10.1016/S0925-8388(99)00406-5

DO - 10.1016/S0925-8388(99)00406-5

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 293

SP - 531

EP - 535

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

T2 - Proceedings of the 1998 International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications (MH98)

Y2 - 4 October 1998 through 9 October 1998

ER -

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

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