Structure of magnesium aluminosilicate glass by neutron diffraction with isotope substitution
Magnesium is an essential element in vitreous aluminosilicate materials that have a variety of applications, ranging from commercial display glass to the proxies for dry basaltic melts. The structural role of Mg in oxide glasses is, however, largely unknown because of (i) its ability to change the Mg-O coordination number from 4 to 6, and (ii) the absence of definitive structural information from experiment. We will therefore employ the method of neutron diffraction with isotope substitution to give site-specific information on the coordination environment of Mg in three different glasses along the (MgO)x(Al2O3)50-x(SiO2)50 tie-line, with x = 15, 25 and 35. These compositions are chosen in order to highlight the response of the coordination environment of Mg to significant changes in the network structure that emerge, e.g., from the availability of bridging versus non-bridging oxygen atoms. The results will complement those obtained from 27Al and 29Si NMR, thus providing a complete structural picture for an important model system.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
SALMON Philip Stephen; AITKEN Bruce G; Henry E. Fischer; Lawrence Vincent Daniel Gammond; Rita Silva; Hesameddin Mohammadi and ZEIDLER Anita. (2019). Structure of magnesium aluminosilicate glass by neutron diffraction with isotope substitution. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-05-1002
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.