Surface-bulk uptake of hydrogen by niobium
- 15 September 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 26 (6) , 2715-2719
- https://doi.org/10.1103/physrevb.26.2715
Abstract
Photoemission spectroscopy and electrical resistivity have been used to measure both the surface and the bulk concentrations of H incident on Nb. It is difficult to understand both the uptake data and the surface-coverage results on the basis of a dilute hydrogen phase on the surface in equilibrium with the bulk. A model is proposed here in which at high surface concentration a hydride layer forms on the surface. Both the surface-coverage data and the bulk-uptake results are analyzed using this model.Keywords
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