Formation and structure of ionic (Na, Zn) sulfophosphate glasses

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Da N, Grassmé O, Nielsen KH, Peters G, Wondraczek L
Zeitschrift: Journal of Non-Crystalline Solids
Jahr der Veröffentlichung: 2011
Band: 357
Heftnummer: 10
Seitenbereich: 2202-2206
ISSN: 0022-3093


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.


FAU-Autoren / FAU-Herausgeber

Da, Ning
Professur für Werkstoffwissenschaften (Glas und Keramik)
Nielsen, Karsten Hansgaard
Lehrstuhl für Werkstoffwissenschaften (Glas und Keramik)
Wondraczek, Lothar Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Glas und Keramik)


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Autor(en) der externen Einrichtung(en)
Christian-Albrechts-Universität zu Kiel


Zitierweisen

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://dx.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.

BibTeX: 

Zuletzt aktualisiert 2019-16-03 um 16:23