The molecular dynamics computer simulation technique was used to determine the short-time dynamics behavior and resultant structures of ions at the surface of Li//2O multiplied by (times) 3SiO//2 and Na//2O multiplied by (times) 3SiO//2 glasses. Room temperature and elevated temperatures were used. The simulations indicate that a localized surface rearrangement occurs within picoseconds after formation of the free surface, creating a surface excess of alkali in the Na (and K) case, but not in the Li case. Elevated temperatures, even for brief times, enhance the observed surface excess of Na and K.
|Number of pages||4|
|Journal||Journal of the American Ceramic Society|
|Publication status||Published - Jul 1985|
ASJC Scopus subject areas
- Ceramics and Composites