A quantitative analysis of hydriding kinetics of magnesium in a Mg/Mg2Cu eutectic alloy

Jai Young Lee, H. H. Park, J. S. Han

Research output: Contribution to journalArticle

Abstract

Comparing the hydriding kinetic equations of magnesium derived from a theoretical model with the experiemental data published by Karty et al. [1], the kinetic mechanism of the hydriding reaction of magnesium in a Mg/Mg2Cu eutectic alloy is analysed. As the eutectic structure of the alloy has the uniform interlamellar spacing of 1 Μm, one-dimensional growth of the hydride phase is assumed for the Mg2Cu-catalysed magnesium. The concurrent hydriding reactions of the vapour-deposited pure magnesium as well as Mg2Cu-catalysed magnesium are discussed. In both cases, the diffusion of hydrogen through the hydride phase is the rate-controlling step. Quantitative equations for the reaction and the effective particle size of pure magnesium are given, which can be used for reactor design.

Original languageEnglish
Pages (from-to)3952-3956
Number of pages5
JournalJournal of Materials Science
Volume21
Issue number11
DOIs
Publication statusPublished - 1986 Nov

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Eutectics
Magnesium
Kinetics
Chemical analysis
Hydrides
Hydrogen
Particle size
Vapors

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "A quantitative analysis of hydriding kinetics of magnesium in a Mg/Mg2Cu eutectic alloy",
abstract = "Comparing the hydriding kinetic equations of magnesium derived from a theoretical model with the experiemental data published by Karty et al. [1], the kinetic mechanism of the hydriding reaction of magnesium in a Mg/Mg2Cu eutectic alloy is analysed. As the eutectic structure of the alloy has the uniform interlamellar spacing of 1 Μm, one-dimensional growth of the hydride phase is assumed for the Mg2Cu-catalysed magnesium. The concurrent hydriding reactions of the vapour-deposited pure magnesium as well as Mg2Cu-catalysed magnesium are discussed. In both cases, the diffusion of hydrogen through the hydride phase is the rate-controlling step. Quantitative equations for the reaction and the effective particle size of pure magnesium are given, which can be used for reactor design.",
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A quantitative analysis of hydriding kinetics of magnesium in a Mg/Mg2Cu eutectic alloy. / Lee, Jai Young; Park, H. H.; Han, J. S.

In: Journal of Materials Science, Vol. 21, No. 11, 11.1986, p. 3952-3956.

Research output: Contribution to journalArticle

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AB - Comparing the hydriding kinetic equations of magnesium derived from a theoretical model with the experiemental data published by Karty et al. [1], the kinetic mechanism of the hydriding reaction of magnesium in a Mg/Mg2Cu eutectic alloy is analysed. As the eutectic structure of the alloy has the uniform interlamellar spacing of 1 Μm, one-dimensional growth of the hydride phase is assumed for the Mg2Cu-catalysed magnesium. The concurrent hydriding reactions of the vapour-deposited pure magnesium as well as Mg2Cu-catalysed magnesium are discussed. In both cases, the diffusion of hydrogen through the hydride phase is the rate-controlling step. Quantitative equations for the reaction and the effective particle size of pure magnesium are given, which can be used for reactor design.

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