Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering
Abstract
Small angle x-ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 A{sup -1} for supercooled yttria-alumina melts using a laser-heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 A{sup -1} at the foot of the inter-atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.
- Authors:
-
- Centre for Advanced Functional Materials and Devices Institute of Mathematics and Physics, Aberystwyth University, Aberystwyth SY23 3BZ (United Kingdom)
- Ecole nationale Superieure de Chemie de paris, 11 rue Pierre et marie Curies, 75231, Paris (France)
- CNRS-CRMHT, 1d avenue de la Rechereche Scietifique, 45071 Orleans cedex 9 (France)
- Publication Date:
- OSTI Identifier:
- 21260237
- Resource Type:
- Journal Article
- Journal Name:
- AIP Conference Proceedings
- Additional Journal Information:
- Journal Volume: 1092; Journal Issue: 1; Conference: 6. international conference on synchrotron radiation in materials science, Campinas (Brazil), 20-23 Jul 2008; Other Information: DOI: 10.1063/1.3086239; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINATES; ALUMINIUM OXIDES; COMPRESSIBILITY; DENSITY; DENSITY FUNCTIONAL METHOD; FLUCTUATIONS; FURNACES; LASERS; SMALL ANGLE SCATTERING; STRUCTURE FACTORS; SYNCHROTRON RADIATION; X-RAY DIFFRACTION; YTTRIUM OXIDES
Citation Formats
Greaves, G Neville, Wilding, Martin C, Vu Van, Quang, Majerus, Odile, and Hennet, Louis. Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. United States: N. p., 2009.
Web. doi:10.1063/1.3086239.
Greaves, G Neville, Wilding, Martin C, Vu Van, Quang, Majerus, Odile, & Hennet, Louis. Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering. United States. https://doi.org/10.1063/1.3086239
Greaves, G Neville, Wilding, Martin C, Vu Van, Quang, Majerus, Odile, and Hennet, Louis. 2009.
"Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering". United States. https://doi.org/10.1063/1.3086239.
@article{osti_21260237,
title = {Characterising density fluctuations in liquid yttria aluminates with small angle x-ray scattering},
author = {Greaves, G Neville and Wilding, Martin C and Vu Van, Quang and Majerus, Odile and Hennet, Louis},
abstractNote = {Small angle x-ray scattering (SAXS) has been measured in the wavevector range 0.01<Q<1 A{sup -1} for supercooled yttria-alumina melts using a laser-heated aerodynamic furnace. SAXS intensity rises gradually with temperature reflecting density fluctuations deriving from isothermal compressibility. With decreasing Q a minimum is located close to 0.1 A{sup -1} at the foot of the inter-atomic structure factor, below which SAXS rises, suggesting scatter from longer range fluctuating volumes.},
doi = {10.1063/1.3086239},
url = {https://www.osti.gov/biblio/21260237},
journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1092,
place = {United States},
year = {Thu Jan 29 00:00:00 EST 2009},
month = {Thu Jan 29 00:00:00 EST 2009}
}
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