Properties and Structure of Lead Fluorosilicate Glasses |
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| Authors: | JEFFREY COON &# ,JAMES E. SHELBY &# |
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| Affiliation: | Institute of Glass Science and Engineering, New York State College of Ceramics at Alfred University, Alfred, New York 14802 |
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| Abstract: | An extensive glass-forming region has been determined for the lead fluorosilicate system. These glasses have a very high anionic (fluorine) conductivity. The value of 2 x 10-4ω-1.cm-1 at slightly less than 200°C found for one glass is the highest anionic conductivity reported to date in a glass. Glass transition temperatures, thermal expansion coefficients, and UV-visible spectra were also measured. Results of these measurements and melt-history studies will be discussed and related to a proposed structural model for the lead fluorosilicate glasses. |
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