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Chemical Stability of ZnO – Na 2 O – SO 3 – P 2 O 5 Glasses
Author(s) -
Sirotkin Sergey,
Meszaros Robert,
Wondraczek Lothar
Publication year - 2012
Publication title -
international journal of applied glass science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.383
H-Index - 34
eISSN - 2041-1294
pISSN - 2041-1286
DOI - 10.1111/j.2041-1294.2011.00076.x
Subject(s) - aqueous solution , chemical stability , phosphate , materials science , sulfate , ion , chemical engineering , inorganic chemistry , chemistry , organic chemistry , engineering , metallurgy
We report on chemical stability and corrosion behavior of highly depolymerized sulfophosphate glasses from the system ZnO – Na 2 O – SO 3 – P 2 O 5 in aqueous solution, providing data on weight loss, ion release rates, and modifications of surface topology as a function of time, temperature and pH value. Observations seem consistent with the previously developed structural model of chemical heterogeneity, where cations Na + and Zn 2+ cluster selectively in the vicinity of sulfate and phosphate anions, respectively.