Effect of Fluorine on the Structure of Phosphate Glass

Author

Richard K. Brow, Missouri University of Science and TechnologyFollow
David R. Tallant
Z. A. Osborne
Y. Yang
D. E. Day, Missouri University of Science and TechnologyFollow

Abstract

We have used x-ray photoelectron and Raman spectroscopies to characterise the effect of the incorporation of F on the short range structure of Na-P-O and Na-Al-P-O glasses. The incorporation of F into NaPO₃ depolymerises the glass structure by preferentially replacing bridging oxygen with chain terminating P-F bonds. The addition of AlF₃ to NaPO₃ modifies the phosphate network primarily by linking Al(O,F) polyhedra with P(O,F)4 tetrahedra. Remelting these latter glasses with NH₄HF₂ increases their F contents and depolymerises the structure through the formation of additional P-F and Al-F bonds at the expense of the bridging POAl bonds. Changes in glass properties are sensitive to these structural modifications.

Recommended Citation

R. K. Brow et al., "Effect of Fluorine on the Structure of Phosphate Glass," Physics and Chemistry of Glasses, Society of Glass Technology, Oct 1991.

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

0031-9090

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1991 Society of Glass Technology, All rights reserved.

Publication Date

01 Oct 1991