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

doi:10.1016/S0925-8388(96)02888-5

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 journal › Article

6 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 TaV₂H_0.6 and TaV₂H_1.1 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)
Pages (from-to)	432-434
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	253-254
DOIs	https://doi.org/10.1016/S0925-8388(96)02888-5
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

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10.1016/S0925-8388(96)02888-5

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

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 {\AA}-1 is consistent with the model of H jumps between six [Ta2V2] sites on a ring with radius r≈1.0 {\AA}. 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.",

keywords = "Diffusion, Metal hydrides, Quasielastic neutron scattering",

author = "Skripov, {A. V.} and Cook, {J. C.} and C. Karmonik and R. Hempelmann",

year = "1997",

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doi = "10.1016/S0925-8388(96)02888-5",

language = "English (US)",

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T1 - Localized motion of hydrogen in C15-type TaV2

T2 - Nuclear magnetic resonance and neutron scattering study

AU - Skripov, A. V.

AU - Cook, J. C.

AU - Karmonik, C.

AU - Hempelmann, R.

PY - 1997/5/20

Y1 - 1997/5/20

N2 - 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.

AB - 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.

KW - Diffusion

KW - Metal hydrides

KW - Quasielastic neutron scattering

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