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The Solubility Limit of CaO in α-Alumina at 1600°C
Article first published online: 10 JUN 2013
© 2013 The American Ceramic Society
Journal of the American Ceramic Society
Volume 96, Issue 10, pages 3258–3264, October 2013
How to Cite
Akiva, R., Berner, A., Kaplan, W. D. (2013), The Solubility Limit of CaO in α-Alumina at 1600°C. Journal of the American Ceramic Society, 96: 3258–3264. doi: 10.1111/jace.12442
- Issue published online: 10 OCT 2013
- Article first published online: 10 JUN 2013
- Manuscript Accepted: 14 MAY 2013
- Manuscript Received: 17 MAR 2013
The solubility limit of Ca in 99.99% pure α-Al2O3 (alumina) was measured using a wavelength dispersive spectrometer mounted on a scanning electron microscope. Al2O3 samples were equilibrated at a concentration which ensured saturation of the Al2O3 grains with Ca, and were quenched in water from 1600°C. The results were compared with those from samples which were furnace cooled from 1600°C. For the quenched samples, the Ca solubility limit was found to be 51 ± 1 ppm, which is significantly larger than the solubility limit for samples which were furnace cooled (26 ± 1 ppm).