Abstract
Abstract International simple glass (ISG) is a six-component boroaluminosilicate glass recently developed as a reference benchmark glass for international collaborative studies on high level nuclear waste encapsulation. In this work, structure and elastic properties of the ISG in response to temperatures up to 700 °C and pressure up to 5.5 GPa were studied by in-situ Raman and Brillouin light scattering. Structural integrity of the ISG was evidenced from room temperature to 550 °C by negligible changes in its Raman spectra and elastic moduli. Raman and Brillouin light scattering measurements showed that the ISG was only elastically deformed throughout the tested pressure range.
Published Version
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