REACTION OF HYDROGEN WITH MAGNESIUM ALLOYS AND MAGNESIUM INTERMETALLIC COMPOUNDS.

M. H. Mintz, Z. Gavra, G. Kimmel, Z. Hadari

Research output: Contribution to journalConference articlepeer-review

63 Scopus citations

Abstract

The hydrogenation characteristics of various dilute magnesium alloys and magnesium intermetallic compounds were studied. The rate of the reaction between hydrogen and activated magnesium containing small amounts of group IIIa metal additives (aluminum, gallium, indium) was investigated and was compared with the rate for pure (unalloyed) magnesium. The results are interpreted in terms of a three-dimensional diffusion mechanism in which magnesium cation vacancies are the more mobile species controlling the rate of the process. Thermodynamic and crystallographic studies of the hydride Mg//2NiH//4 revealed the presence of two allotropic forms of this compound. The solubility of hydrogen in Mg//2Ni (i. e. the alpha -phase region) was investigated and the relation between the lattice parameters and the hydrogen concentration was determined. Reactions of hydrogen with Mg-Al intermetallic compounds (Mg//2Al//3 and Mg//3Al//2) were studied.

Original languageEnglish
Pages (from-to)263-270
Number of pages8
JournalJournal of the Less-Common Metals
Volume74
Issue number2
DOIs
StatePublished - 1 Jan 1980
EventProc of the Int Symp on the Prop and Appl of Met Hydrides - Colorado Springs, CO, USA
Duration: 7 Apr 198011 Apr 1980

ASJC Scopus subject areas

  • General Engineering

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