An equation for time evolution of glass corrosion in a closed system is proposed. Examples of fitting this equation to vapor-hydration test (VHT) and product consistency test data are shown. It is argued that the stage of accelerated corrosion of waste glass is a temporary spike caused by a transition to a different mechanism (not associated solely with high-alumina content in glass) and followed by slower steady corrosion. The effect of temperature and glass composition on the VHT rate of corrosion is evaluated. Results of different corrosion tests are compared. Progress towards a frame-indifferent rate equation is outlined.
Revised: July 1, 2009 |
Published: May 21, 2003
Citation
Hrma P.R., J.D. Vienna, and J.D. Yeager. 2003.Waste Glass Corrosion: Some Open Questions. In Environmental Issues and Waste Management Technologies in the Ceramic and Nuclear Industries VIII; Proceedings. Ceramic Transactions, edited by SK Sundaram, DR Spearing, JD Vienna, 143, 245-252. Westerville, Ohio:American Ceramic Society.PNNL-SA-36494.