학술논문
Long-term dissolution rate of nuclear glasses in confined environments: does a residual chemical affinity exist?
Document Type
Article
Source
Journal of Materials Science; July 1990, Vol. 25 Issue: 7 p3048-3052, 5p
Subject
Language
ISSN
00222461; 15734803
Abstract
An experimental procedure based on static leach tests of a combination of glass powder and a finely polished monolith is proposed to determine the long-term corrosion rate of nuclear glasses in confined environments. Solution analyses and detailed characterization of the monolith surface with MeV ion-beam techniques show a drastic decrease of the corrosion rate with reaction progress. It is concluded that the residual affinity model, based on a control of the final rate by dissolved silica, cannot account for our observations.