Compositional control of the photoelastic response of silicate glasses |
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| Affiliation: | 1. Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung 46123, Indonesia;2. Department of Physics, Institut Teknologi Sumatera, Lampung Selatan 35365, Indonesia;3. Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand;4. Physics Program, Faculty of Science and Technology, Nakhon Pathom Rajabhat University, Nakhon Pathom 73000, Thailand;5. Physics Program, Faculty of Science and Technology, Muban Chombueng Rajabhat University, Ratchaburi 70150, Thailand;1. Department of Chemistry, Missouri University of Science and Technology, Rolla, MO 65409, USA;2. Department of Material Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA;3. Center for Biomedical Science and Engineering, Missouri University of Science and Technology, Rolla, MO 65409, USA;4. Center for Single Nanoparticle, Single Cell, and Single Molecule Monitoring, Missouri University of Science and Technology, Rolla, MO 65409, USA;2. Univ. Lille, CNRS, UMR 8516 – LASIR- Laboratoire de Spectrochimie Infrarouge et Raman, Lille F-59000, France;1. Missouri University of Science & Technology, Department of Materials Science & Engineering, Rolla, MO 65409, USA;2. Corning, Inc., Corning, NY 14831, USA;3. Rockwell Collins, Inc., Cedar Rapids, IA 52498, USA;4. The Ohio State University, Department of Materials Science & Engineering, Columbus, OH 43210, USA;5. Rutgers University, Department of Materials Science & Engineering, Piscataway, NJ 08854, USA |
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| Abstract: | The stress-induced birefringence (termed photoelastic response) in oxide glasses has important consequences for several applications. In this work, we provide new insights into the structural origins of the photoelastic response of silicate glasses by determining the composition dependence of the stress optic coefficient (C) of forty-nine silicate glasses containing different alkali and alkaline earth oxides. We find that the value of C decreases with increasing modifier-to-silica ratio and increases with alumina-to-silica ratio. The scaling of stress optic coefficient with composition can be predicted based on the average ratio of bond metallicity to cation coordination number in the glass, which varies as a function of composition. This is evidence that the details of the glass network structure need to be considered in order to account accurately for the composition dependence of C, a result that is consistent with a previously proposed empirical model and with topological constraint theory. Our results enable an improved control of the photoelastic response of silicate glasses through compositional design. |
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| Keywords: | Photoelastic response Stress optic coefficient Silicate glass Bond metallicity Composition dependence |
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