Structure of magnesium aluminosilicate glass
Mg is a chameleon-like element, which has the ability in oxide glasses to transform its identity from a network former to a network modifier via a change in the Mg-O coordination number. However, little is known about its structural role because it does not lend itself to techniques such as 25Mg NMR. We will use neutron diffraction to make a systematic investigation of the coordination environment of Mg in the model system MgO-Al2O3-SiO2. A wide range of compositions will be covered, the majority of which are compatible with a liquidus temperature that does not exceed 1650 deg C, with the aim of coaxing Mg into playing different coordination roles. The results will be used to improve structure-related models for Mg-containing oxide glass-forming materials that are important in basic science (e.g. geophysics) and technology (e.g. display glass).
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SALMON Philip Stephen; AITKEN Bruce G; BUSCEMI Michela; Henry E. Fischer; Lawrence Vincent Daniel Gammond and ZEIDLER Anita. (2018). Structure of magnesium aluminosilicate glass. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-05-988
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