Optimization of the Electrochemical Hydrogen Permeation Technique.
Abstract
An electrochemical hydrogen permeation cell incorporating improved geometrical and other design features has been developed and tested. Results on iron samples indicate the need for palladium coating of hydrogen entry and exit surfaces if internal transport rates of hydrogen in the metal are to be determined. Electrodeposition and vapor deposition of palladium coatings have been shown to be unsatisfactory. Samples vacuum coated by ion deposition in an argon-ion plasma at reduced pressure proved to be satisfactory. Results obtained in this study indicate that substantially longer times to obtain steady states are needed than have previously been reported by some researchers. This would indicate that hydrogen transport rates would be lower than have been reported. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1976
- Accession Number
- ADA033597
Entities
People
- Jason C. Jones
- R. Heidersbach
Organizations
- University of Rhode Island