Localized motion of hydrogen in C15-type TaV2: Nuclear magnetic resonance and neutron scattering study

A. V. Skripov, J. C. Cook, C. Karmonik, R. Hempelmann

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The localized motion of hydrogen in TaV2 revealed by nuclear magnetic resonance experiments has been studied by quasielastic neutron scattering measurements on TaV2H0.6 and TaV2H1.1 in the temperature range 10-300 K. The behaviour of the elastic incoherent structure factor in the Q range 0.09-3.69 Å-1 is consistent with the model of H jumps between six [Ta2V2] sites on a ring with radius r≈1.0 Å. This model is also supported by neutron diffraction measurements. The hopping rate of hydrogen is found to depend strongly on H concentration, decreasing with increasing H content.

Original languageEnglish (US)
Pages (from-to)432-434
Number of pages3
JournalJournal of Alloys and Compounds
Volume253-254
DOIs
StatePublished - May 20 1997

Keywords

  • Diffusion
  • Metal hydrides
  • Quasielastic neutron scattering

ASJC Scopus subject areas

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

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