Synthesis of Sr2AlH7 by ball milling followed by hydrogenation

Q. A. Zhang, E. Akiba

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The hydride Sr2AlH7 was synthesized by ball milling of the alloy consisting of Sr and Al (2:1) under hydrogen at 150 rpm for 10 h followed by hydrogenation or sintering at 533 K for 2 days. The yield of Sr 2AlH7 in the hydrogenated product was 66 wt.%, which is larger than that in the sintered product. However, the mass fraction of Al in the milled samples decreased largely when the Sr2Al alloy was milled at 300 rpm for 50 h or longer. In such a case, the Sr2AlH7 hydride cannot be obtained during the subsequent hydrogenation.

Original languageEnglish
Pages (from-to)308-311
Number of pages4
JournalJournal of Alloys and Compounds
Volume394
Issue number1-2
DOIs
Publication statusPublished - May 17 2005

All Science Journal Classification (ASJC) codes

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

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