Hydriding properties of ordered-/disordered-Mg-based ternary Laves phase structures

Nobuko Hanada, Shin Ichi Orimo, Hironobu Fujii

研究成果: Conference article査読

21 被引用数 (Scopus)


Ternary Laves phase structures with compositions MgYNi4, MgCaNi4 and CaYNi4 were prepared, and the relationship between the structures and hydriding properties was studied in detail. Only in MgYNi4 are Mg and Y found to be ordered and a plateau pressure is clearly observed in the P-C isotherm during the dehydriding process. In MgCaNi4, however, Mg and Ca are disordered, and hydrogen content of MgCaNi4 is ~30% larger than that of MgYNi4. Control of their order/disorder in Laves phase structures may provide the hydriding properties with higher hydrogen concentrations and flatter plateau regions.

ジャーナルJournal of Alloys and Compounds
出版ステータスPublished - 2003 8 11
イベントProceedings of the Eight International Symposium on Metal Hyd (MH 2002) - Annecy, France
継続期間: 2002 9 22002 9 6

ASJC Scopus subject areas

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

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