Discrepancies between classical kinetic rate law theory and experiment were quantitatively assessed and found to correlate with macromolecular amorphous separation in the sodium borosilicate glass system. A quantitative reinterpretation of static corrosion data and new SPFT data shows that a recently advanced protective surface layer theory fails to describe the observed dis-solution behavior of simple and complex silicate glasses under carefully controlled experimental conditions. The hypothesis is shown to be self-inconsistent in contrast with a phase separation model that is in quantitative agreement with experiments.
Revised: March 5, 2008 |
Published: July 1, 2002
Citation
McGrail B.P., J.P. Icenhower, and E.A. Cordova. 2002.Origins of Discrepancies Between Kinetic Rate Law Theory and Experiments in the Na2O-B2O3-SiO2 System. In Scientific basis for nuclear waste management XXV: Symposium held November 26-29, 2001, Boston, Massachusetts, USA, edited by McGrail, B.P. and Cragnolino, G. A., 713, 537-546. Warrendale, Pennsylvania:Materials Research Society.PNNL-SA-37364.