Published February 2, 2007
| Version v1
Journal article
The Silicon Environment in Silica Polymorphs, Aluminosilicate Crystals and Melts: An In Situ High Temperature XAS Study
Creators
- 1. IMPMC, Universite Pierre et Marie Curie, Universite Denis Diderot, CNRS UMR 7590, 140 rue de Lourmel, 75015 Paris (France)
- 2. Physique des Mineraux et des Magmas, CNRS, IPGP, 4 place Jussieu, 75005 Paris (France)
- 3. LPCML, UCBL, 12 rue Ampere, 69622 Villeurbanne (France)
- 4. Department of Geology, University of Toronto, 22 Russell Street, Toronto, M5S 3B1 Ontario (Canada)
- 5. Synchrotron SOLEIL, L'Orme des Merisiers, BP48, 91192 Gif-sur-Yvette cedex (France)
Description
High temperature X-ray absorption spectroscopy at the Si K-edge has been used to obtain in situ information on SiO2 phase transitions upon heating. Important modifications are observed for the XANES spectra of the high temperature polymorphs, in relation to disordering of the SiO4 tetrahedra beyond the short-range correlations. This paper also presents the XANES spectra of anorthite (CaAl2Si2O8) from room temperature up to the melt (1900 K). This study shows the possibilities for determining the Si environment in crystals and glasses up to the liquid state using in situ XANES measurements
Additional details
Identifiers
- DOI
- 10.1063/1.2644544;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 882
- Journal Issue
- 1
- Journal Page Range
- p. 416-418
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 13. international conference on X-ray absorption fine structure
- Acronym
- XAFS13
- Dates
- 9-14 Jul 2006
- Place
- Stanford, CA (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39071642
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ABSORPTION SPECTROSCOPY; ALUMINIUM SILICATES; ANORTHITE; CALCIUM SILICATES; CORRELATIONS; CRYSTAL STRUCTURE; CRYSTALS; GLASS; HEATING; LIQUIDS; MODIFICATIONS; PHASE TRANSFORMATIONS; SILICA; SILICON; TEMPERATURE DEPENDENCE; X-RAY SPECTRA; X-RAY SPECTROSCOPY
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ALUMINIUM COMPOUNDS; CALCIUM COMPOUNDS; ELEMENTS; FELDSPARS; FLUIDS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; SEMIMETALS; SILICATE MINERALS; SILICATES; SILICON COMPOUNDS; SPECTRA; SPECTROSCOPY
Optional Information
- Notes
- (c) 2007 American Institute of Physics