Email this article Luminescence of Trivalent Chromium Ions in Mullite During Firing of Kaolin
- Authors: Igo A.V.1, Kozhevin A.E.1
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Affiliations:
- Ul’yanovsk State University
- Issue: Vol 74, No 1-2 (2017)
- Pages: 23-25
- Section: Article
- URL: https://journals.rcsi.science/0361-7610/article/view/244766
- DOI: https://doi.org/10.1007/s10717-017-9920-5
- ID: 244766
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Abstract
The luminescence spectra in samples of fired kaolin are investigated. It is shown that the obtained radiation corresponds to the luminescence of Cr3+ ions in mullite. The effect of the firing temperature and mass content of chromium oxide on the emission spectra is studied. The activation energy of mullite formation is determined from the experimental dependences to be Ea = 144 ± 6 kJ/mole and the maximum solubility of Cr2O3 in mullite equals 0.33%.
About the authors
A. V. Igo
Ul’yanovsk State University
Author for correspondence.
Email: igoalexander@mail.ru
Russian Federation, Ul’yanovsk
A. E. Kozhevin
Ul’yanovsk State University
Email: igoalexander@mail.ru
Russian Federation, Ul’yanovsk
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