Abstract
The diffusion of hydrogen in the α and β phases of vanadium hydride has been studied by neutron inelastic scattering. Samples of VH 0.198, VH 0.403 and VH 0.570 were used to determine the temperature and concentration dependence of the diffusion in the α-phase. An activation energy of 550 ± 50°K was derived from the temperature dependence of hydrogen diffusion in the VH 0.198 sample. The theoretical neutron scattering cross-section for jump diffusion among the octahedral and tetrahedral interstitial sites of body-centered cubic lattices has been derived and compared to the experimental results. No conclusions about the site occupation in the α-phase can be drawn from these results. The data for the β-phase of VH 0.570 indicate an abrupt decrease in the diffusion rate at the α → β transition.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
