Electrochemical methods have been used to measure the solubility and diffusivity of hydrogen in amorphous $Ni sb{60}Zr sb{40}$ over a wide range of hydrogen concentrations. It is found that Sievert's law is not obeyed and that the concentration of hydrogen in the metallic glass varies as $P sp{1/4}$, P being the pressure of hydrogen. In the concentration range of hydrogen measured, the diffusion constant of hydrogen increases by more than a factor of ten. A Gaussian distribution of hydrogen binding energy was used to explain the concentration dependence of chemical potential. A possible explanation to the concentration dependence of diffusion coefficient was also given.
Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.59913 |
Date | January 1991 |
Creators | Zhao, Yi, 1965- |
Publisher | McGill University |
Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
Language | English |
Detected Language | English |
Type | Electronic Thesis or Dissertation |
Format | application/pdf |
Coverage | Master of Science (Department of Physics.) |
Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
Relation | alephsysno: 001237360, proquestno: AAIMM67466, Theses scanned by UMI/ProQuest. |
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