Mixed-alkali effect on Rayleigh scattering in K2O-Na2O-MgO-SiO2 glasses

Authors
Tsujikawa, K Ohashi, M
Citation
K. Tsujikawa et M. Ohashi, Mixed-alkali effect on Rayleigh scattering in K2O-Na2O-MgO-SiO2 glasses, J AM CERAM, 83(3), 2000, pp. 660-662
Citations number
18
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
83
Issue
3
Year of publication
2000
Pages
660 - 662
Database
ISI
SICI code
0002-7820(200003)83:3<660:MEORSI>2.0.ZU;2-4
Abstract
The Rayleigh scattering of the mixed-alkali glass system K2O-Na2O-MgO-SiO2 (KNMS) was investigated, both experimentally and theoretically. The lowest Rayleigh scattering coefficient (38% of that for pure SiO2 glass) was obtai ned when the glass composition was 22K(2)O-8Na(2)O-10MgO-60SiO(2) tin mol%) . These values are equal to or less than the minimum values reported for th e ternary sodium silicate glass Na2O-MgO-SiO2. The Rayleigh scattering caus ed by concentration fluctuation was believed to have been reduced greatly i n this KNMS glass, because the mobility of the alkali-metal ions was reduce d by the mixed-alkali effect.