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.

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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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