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This study investigates the structural changes in MgSiO3 glass at varying high pressure and temperature conditions, utilizing the radial distribution function (G(r)) analysis to examine the Si-Si and Mg-O-Si-O bonding. The research provides insights into the molecular arrangements and atomic interactions within the glass structure under extreme environments.
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The structural evolution of MgSiO3 glass at high pressure and temperature A. Yamada1, C.E. Lesher1, S.J. Gaudio1, T. Inoue2, K. Funakoshi3 1Department of Geology, University of California Davis, California 95616, USA 2Geodynamics Research Center, Ehime University, Matsuyama 790-8577, Japan 3Japan Synchrotron Radiation Institute, SPring-8, Hyogo 679-5198, Japan 20.1 GPa, 573 K 14.0 GPa, 573 K 9.2 GPa, 673 K Radial distribution function: G(r) 6.5 GPa, 773 K Si-Si 2.1 GPa, 863 K Mg-O Si-O O-O r / Å