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Nitrogen/Oxygen Substitution within PO4 Tetrahedra: A Right Answer to the Poor Chemical Durability of Phosphate Glasses

Published online by Cambridge University Press:  16 February 2011

A. Le Sauze ,
L. Montagne ,
G. Palavit  and
R. Marchand
A. Le Sauze
Affiliation:
Laboratoire “Verres et Céramiques”, UMR CNRS 6512, Université de Rennes, 35042 RENNES Cedex
L. Montagne
Affiliation:
Laboratoire de Cristallochimie et Physicochimie du Solide, ENSCL, 59655 VILLENEUVE D'ASCQ Cedex
G. Palavit
Affiliation:
Laboratoire de Cristallochimie et Physicochimie du Solide, ENSCL, 59655 VILLENEUVE D'ASCQ Cedex
R. Marchand
Affiliation:
Laboratoire “Verres et Céramiques”, UMR CNRS 6512, Université de Rennes, 35042 RENNES Cedex
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Abstract

By using both alumina addition and nitrogen/oxygen substitution within PO4 tetrahedra, it is possible to prepare durable phosphate glasses without affecting their specific properties such as low melting temperatures and high thermal expansion coefficients. In particular, “LiKMgAlPON” nitrogen-rich glass compositions have a chemical durability on the same order as soda lime window glass, associated with a glass processing temperature as low as 800°C.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 547: Symposium DD – Solid-State Chemistry of Inorganic Materials II , 1998 , 395
Copyright
Copyright © Materials Research Society 1999

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