High pressure x-ray diffraction measurements on Mg2SiO4 glass

BENMORE, C. J., SOIGNARD, E., GUTHRIE, M., AMIN, S. A., WEBER, J. K. R., MCKIERNAN, K., WILDING, Martin and YARGER, J. L. (2011). High pressure x-ray diffraction measurements on Mg2SiO4 glass. Journal of Non-Crystalline Solids, 357 (14), 2632-2636.

Full text not available from this repository.
Official URL: https://www.sciencedirect.com/science/article/pii/...
Link to published version:: https://doi.org/10.1016/j.jnoncrysol.2010.12.064

Abstract

The structure factors of Mg2SiO4 glass have been measured using high energy x-ray diffraction up to pressures of 30.2 GPa, and the equation of state measured up to 12.8 GPa. The average Mg–O coordination numbers were extracted from the experimental pair distribution functions assuming two cases (i) there is no change in Si–O coordination number with pressure and (ii) the average Si–O coordination number increases the same as for pure SiO2 glass. Both analyses give similar results and show a gradual increase in the average Mg–O coordination number from 5.0 at ambient pressure to ~ 6.6(6) at 30.2 GPa. There is good qualitative agreement between the experimental structure and equation of state data for the glass compared to several recent molecular dynamics simulations carried out on liquid Mg2SiO4.

Item Type: Article
Additional Information: 11th International Conference on the Structure of Non-Crystalline Materials (NCM 11), Paris, FRANCE, JUN 28-JUL 02, 2010
Research Institute, Centre or Group: Materials and Engineering Research Institute > Engineering Research
Departments: Faculty of Science, Technology and Arts > Department of Engineering and Mathematics
Identification Number: https://doi.org/10.1016/j.jnoncrysol.2010.12.064
Depositing User: Martin Wilding
Date Deposited: 03 Jul 2018 13:59
Last Modified: 03 Jul 2018 13:59
URI: http://shura.shu.ac.uk/id/eprint/21481

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics