Unravelling the chameleon-like nature of Mg in silicate glasses
The coordination environment of magnesium in the silicate glasses A2O·MgO·2SiO2, 1.5A2O·MgO·2.5SiO2 and 2A2O·MgO·3SiO2, where A = Na or K, will be measured by neutron diffraction. The objective is to stabilise magnesium in a four-fold coordination environment by increasing the Na2O or K2O to MgO ratio. The results will (i) reveal the influence of the glass composition and alkali cation field strength on the Mg coordination environment; (ii) test whether four-fold coordinated magnesium plays a predominantly network-forming or network-modifying role in silicate glasses; and (iii) guide in the interpretation of 25Mg solid-state nuclear magnetic resonance experiments. Magnesium is a key component in amorphous silicates that have widespread applications ranging from commercial display glass to the models for magmatic materials in the geosciences.
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The recommended format for citing this dataset in a research publication is in the following format:
SALMON Philip Stephen; CUELLO Gabriel; ECKERT Hellmut; GIRON LANGE Esther; Hesameddin Mohammadi and ZEIDLER Anita. (2023). Unravelling the chameleon-like nature of Mg in silicate glasses. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-05-1054
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