Determination of the hydrogen site occupation in the α phase of zirconium hydride and in the α and β phases of titanium hydride by inelastic neutron scattering

Inelastic neutron scattering measurements have been used to determine the site occupied by hydrogen in alpha Zr-H and alpha and beta Ti-H. The measured optical peak frequencies were only consistent with hydrogen being located on the tetrahedral sites in all cases. The significance of the energy shift between the hydride phase and the solid-solution phase is discussed.

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