Mechanical alloying of MgNi compounds under hydrogen and inert atmosphere

J. Huot, Etsuo Akiba, T. Takada

Research output: Contribution to journalArticle

103 Citations (Scopus)

Abstract

The effect of milling atmosphere on the nature and composition of milled products was investigated. Pure magnesium and the mixture 2Mg + Ni were milled in a planetary ball mill under hydrogen atmosphere. The mixture 2Mg + Ni was also milled under argon atmosphere. X-ray powder diffraction, SEM and DSC measurements were taken at certain intervals during the milling process. When milled under hydrogen, pure magnesium formed MgH2. DSC measurement indicated that the onset temperature of MgH2 decomposition was 440.7°C. Magnesium hydride was also formed when the mixture 2Mg + Ni was milled under hydrogen. The presence of nickel lowered the onset temperature of MgH2 decomposition to 225.4°C. By milling the mixture 2Mg + Ni under argon, Mg2Ni was produced. The presence of Mg2Ni slowed the decomposition kinetics of MgH2.

Original languageEnglish
Pages (from-to)815-819
Number of pages5
JournalJournal of Alloys and Compounds
Volume231
Issue number1-2
DOIs
Publication statusPublished - Dec 15 1995

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Mechanical alloying
Hydrogen
Magnesium
Argon
Decomposition
Ball mills
Nickel
Hydrides
X ray powder diffraction
Temperature
Scanning electron microscopy
Kinetics
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Mechanical alloying of MgNi compounds under hydrogen and inert atmosphere. / Huot, J.; Akiba, Etsuo; Takada, T.

In: Journal of Alloys and Compounds, Vol. 231, No. 1-2, 15.12.1995, p. 815-819.

Research output: Contribution to journalArticle

Huot, J. ; Akiba, Etsuo ; Takada, T. / Mechanical alloying of MgNi compounds under hydrogen and inert atmosphere. In: Journal of Alloys and Compounds. 1995 ; Vol. 231, No. 1-2. pp. 815-819.
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