Crystal structure of two hydrides formed from a Ti-V-Mn BCC solid solution alloy studied by time-of-flight neutron powder diffraction - a NaCl structure and a CaF2 structure

Yumiko Nakamura, Ken Ich Oikawa, Takashi Kamiyama, Etsuo Akiba

研究成果: Contribution to journalArticle査読

52 被引用数 (Scopus)

抄録

We investigated the crystal structures of two hydrides formed from a BCC solid solution alloy Ti1.0V1.1Mn0.9 by means of neutron and X-ray powder diffraction. The mono-hydride (Ti1.0V1.1Mn0.9)D2.0 has a pseudo-cubic NaCl structure. The lattice constants are a′ = 0.41278(4) nm and c′ = 0.37685(6) nm, where the c′-axis is 9% shorter than the a′-axis. In this phase the hydrogen atoms occupy octahedral (O) sites surrounded by six metal atoms. The di-hydride (Ti1.0V1.1Mn0.9)D5.4 has the CaF2 structure (a = 0.431935(5) nm) with hydrogen atoms occupying tetrahedral (T) sites. The mono-hydride found in this study is classified into a new category: `a NaCl-type mono-hydride formed from BCC solid solution'.

本文言語英語
ページ(範囲)284-289
ページ数6
ジャーナルJournal of Alloys and Compounds
316
1-2
DOI
出版ステータス出版済み - 3 2 2001
外部発表はい

All Science Journal Classification (ASJC) codes

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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