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 language | English (US) |
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Pages (from-to) | 432-434 |
Number of pages | 3 |
Journal | Journal of Alloys and Compounds |
Volume | 253-254 |
DOIs | |
State | Published - May 20 1997 |
Keywords
- Diffusion
- Metal hydrides
- Quasielastic neutron scattering
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry