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Fusion temperatures of SiO2-P2O5 binary glasses

Fusion temperatures of SiO2-P2O5 binary glasses
Fusion temperatures of SiO2-P2O5 binary glasses
Experimental measurements of fusion temperatures against glass composition for binary phosphosilicate glasses, as used in optical fibres, were made. The glasses were prepared in layers within a silica tube by chemical vapour deposition. Using a model based on the fraction of P-O to Si-O bonds and the known viscosity of vitreous silica and glassy P2O5, theoretical calculations of fusion temperatures were made and compared with experiment. Good agreement was obtained. The model was also applied to the fusion temperatures of binary SiO2-GeO2 and SiO2-B2O3 glasses, and agreement with qualitative experimental measurement was found. Viscosity-temperature data for glasses in these three systems may also be calculated from the same model.
41-42
Hammond, C.R.
80fd62f1-2ed0-4018-b6ae-2c4a46de8525
Hammond, C.R.
80fd62f1-2ed0-4018-b6ae-2c4a46de8525

Hammond, C.R. (1978) Fusion temperatures of SiO2-P2O5 binary glasses. Physics and Chemistry of Glasses, 19 (3), 41-42.

Record type: Article

Abstract

Experimental measurements of fusion temperatures against glass composition for binary phosphosilicate glasses, as used in optical fibres, were made. The glasses were prepared in layers within a silica tube by chemical vapour deposition. Using a model based on the fraction of P-O to Si-O bonds and the known viscosity of vitreous silica and glassy P2O5, theoretical calculations of fusion temperatures were made and compared with experiment. Good agreement was obtained. The model was also applied to the fusion temperatures of binary SiO2-GeO2 and SiO2-B2O3 glasses, and agreement with qualitative experimental measurement was found. Viscosity-temperature data for glasses in these three systems may also be calculated from the same model.

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Published date: 1978

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Local EPrints ID: 78708
URI: http://eprints.soton.ac.uk/id/eprint/78708
PURE UUID: 4e86fd05-4a4b-4100-9a6b-086e1a791a0a

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 17:39

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Author: C.R. Hammond

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