Investigation of Aluminate and Al2O3 Crystals and Melts at High Temperature Using XANES Spectroscopy

Journal Article · Fri Feb 02 00:00:00 EST 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2644545· OSTI ID:21054643

Neuville, Daniel R; Roux, Jacques ^[1]; Cormier, Laurent ^[2]; Henderson, Grant S ^[3]; Ligny, Dominique de ^[4]; Flank, Anne-Marie; Lagarde, Pierre ^[5]; SLS, 5232 Villigen-PSI ^[6]

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1. Physique des Mineraux et des Magmas, IPGP-CNRS, 4 place Jussieu, 75005 Paris (France)
2. IMPMC, Universite Pierre et Marie Curie, Universite Denis Diderot, CNRS UMR 7590, 140 rue de Lourmel, 75015 Paris (France)
3. Dept of Geology, University of Toronto, 22 Russell St, Toronto (Canada)
4. LPCML, UCBL, 12 rue Ampere, 69622 Villeurbanne (France)
5. CNRS- UR1 SOLEIL, BP 48, 91192 Gif sur Yvette (France)
6. Switzerland

Using X-ray absorption at the Al K-edge at high temperature, structural information was determined on Al2O3, CaAl2O4 (CA), Ca3Al2O6 (C3A) and CaAl2Si2O8 (anorthite) in the crystalline and liquid states (2380 K). Important changes are observed for Al2O3 where all oscillation in the XANES spectra disappear above the liquidus temperature. For the three other compositions some modifications of the XANES spectra can be attributed to changes in the Al coordination.

• OSTI ID: 21054643
• Journal Information: AIP Conference Proceedings, Vol. 882, Issue 1; Conference: XAFS13: 13. international conference on X-ray absorption fine structure, Stanford, CA (United States), 9-14 Jul 2006; Other Information: DOI: 10.1063/1.2644545; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
ABSORPTION SPECTROSCOPY
ALUMINATES
ANORTHITE
CALCIUM SILICATES
CRYSTAL STRUCTURE
CRYSTALS
GLASS
MODIFICATIONS
OSCILLATIONS
TEMPERATURE DEPENDENCE
X-RAY SPECTRA
X-RAY SPECTROSCOPY