In-situ x-ray structure measurements on aerodynamically levitated high temperature liquids

WEBER, Richard, BENMORE, Christopher, MEI, Qiang and WILDING, Martin (2009). In-situ x-ray structure measurements on aerodynamically levitated high temperature liquids. In: Synchrotron radiation in materials science: 6th international conference on synchrotron radiation in materials science. AIP Conference Proceedings, 1092 . American Institute of Physics.

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High energy, high flux X‐ray sources enable new measurements of liquid and amorphous materials in extreme conditions. Aerodynamic levitation in combination with laser beam heating can be used to access high purity and non‐equilibrium liquids at temperatures up to 3000 K. In this work, a small aerodynamic levitator was integrated with high energy beamline 11 ID‐C at the Advanced Photon Source. Scattered X‐rays were detected with a Mar345 image plate. The experiments investigated a series of binary in the CaO‐Al2O3, MgO‐SiO2, SiO2‐Al2O3 metal oxide compositions and pure SiO2. The results show that the liquids exhibit large changes in structure when the predominant network former is diluted. Measurements on glasses with the same compositions as the liquids suggest that significant structural rearrangement consistent with a fragile‐strong transition occurs in these reluctant glass forming liquids as they vitrify.

Item Type: Book Section
Additional Information: 6th International Conference on Synchrotron Radiation in Materials Sciences, Campinas, BRAZIL, JUL 20-23, 2008 ISSN 0094-243X
Research Institute, Centre or Group: Materials and Engineering Research Institute > Engineering Research
Departments: Faculty of Science, Technology and Arts > Department of Engineering and Mathematics
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Depositing User: Martin Wilding
Date Deposited: 25 Oct 2018 13:24
Last Modified: 25 Oct 2018 13:24

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