Correlation of Structure and Photoelastic Response in Tin Phosphate Glass |
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| Authors: | Vincent Martin Ulrike Werner-Zwanziger Josef W Zwanziger Richard A Dunlap |
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| Affiliation: | 1. Department of Chemistry and Institute for Research in Materials, Dalhousie University, Halifax, NS, Canada NS B3H 4J3;2. Department of Physics and Atmospheric Sciences, College of Sustainability, Institute for Research in Materials, Dalhousie University, Halifax, NS, Canada B3H 3J5 |
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| Abstract: | Recently an empirical model was established to predict the photoelastic response of a glass based on its composition and the crystalline structure of its constituents. In the present work the model was tested in detail by comparing the local structure assessed by a combination of nuclear magnetic resonance and Mössbauer spectroscopy with the model predictions and the measured photoelastic response. The system investigated was (SnO)x(P2O5)1?x. It was found that while the original simple model based on data on the pure components predicted the composition of the zero stress-optic glass to within about 15 mol%, inclusion of data on mixed systems, more reflective of the true glass structure, gave substantial improvement of the prediction. This finding further confirms the relation of local bonding structure to the photoelastic response of glass. |
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