Investigation of Aluminate and Al2O3 Crystals and Melts at High Temperature Using XANES Spectroscopy
Abstract
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.
- Publication:
-
X-ray Absorption Fine Structure - XAFS13
- Pub Date:
- February 2007
- DOI:
- Bibcode:
- 2007AIPC..882..419N
- Keywords:
-
- 61.10.Ht;
- 61.43.Fs;
- 61.20.-p;
- X-ray absorption spectroscopy: EXAFS NEXAFS XANES etc.;
- Glasses;
- Structure of liquids