Formation and structure of ionic (Na, Zn) sulfophosphate glasses
Da N, Grassmé O, Nielsen KH, Peters G, Wondraczek L (2011)
Publication Type: Journal article
Publication year: 2011
Journal
Book Volume: 357
Pages Range: 2202-2206
Journal Issue: 10
DOI: 10.1016/j.jnoncrysol.2011.02.037
Abstract
Supercooled ortho- and pyrophosphate melts of the type P2O5-EO-A2O (E~=~Zn2+, Ca2+, Sr2+, Ba2+, Mg2+, Mn2+; A~=~Li+, Na+, K+) exhibit unusually high sulfate solubility. This enables facile fabrication of low-melting sulfophosphate glasses with SO3 content of up to 25~mol.%. Sulfur is incorporated into those glasses practically exclusively in the form of isolated SO42- groups. The Q-group distribution of phosphate species is dominated by Q1 and Q0 groups, whereby replacing P2O5 with SO3 results in increasing depolymerization. In this way, the glass forming region can readily be extended to compounds with an average number of bridging oxygen per phosphate anion of less than 0.5. In ionic (Na, Zn) sulfophosphate glasses, cations Zn2+ and Na2+ appear to cluster distinctively around PO43- and SO42- groups, respectively.
Authors with CRIS profile
Ning Da
Professur für Werkstoffwissenschaften (Glas und Keramik)
Karsten Hansgaard Nielsen
Lehrstuhl für Glas und Keramik (WW3)
Lothar Wondraczek
Professur für Werkstoffwissenschaften (Glas und Keramik)
Additional Organisation(s)
Involved external institutions
Germany (DE)How to cite
APA:
Da, N., Grassmé, O., Nielsen, K.H., Peters, G., & Wondraczek, L. (2011). Formation and structure of ionic (Na, Zn) sulfophosphate glasses. Journal of Non-Crystalline Solids, 357(10), 2202-2206. https://doi.org/10.1016/j.jnoncrysol.2011.02.037
MLA:
Da, Ning, et al. "Formation and structure of ionic (Na, Zn) sulfophosphate glasses." Journal of Non-Crystalline Solids 357.10 (2011): 2202-2206.
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