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The Effects of Aluminium Fluoride on the Thermal Behaviour of Kaolin

Published online by Cambridge University Press:  14 March 2018

A. Bien  and
W. L. De Keyser
A. Bien
Affiliation:
Université Libre de Bruxelles, Belgium
W. L. De Keyser
Affiliation:
Université Libre de Bruxelles, Belgium
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Abstract

A systematic study has been made of the effects of aluminium fluoride on the thermal behaviour of kaolin, using differential thermal, thermogravimetric, X-ray and electron microscope techniques. It is shown that mullite can be formed at a temperature as low as 600°C; that in the presence of aluminium fluoride the exothermic reaction occurs at a lower temperature and is reduced in size; that the size of the mullite crystals is increased as a result of pretreatment with aluminium fluoride.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 5 , Issue 28 , December 1962 , pp. 80 - 89
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1962

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References

De keyser, W. L., 1953a. Nature, Lond., 172, 364.Google Scholar
De keyser, W. L., 1953b. Bull. Soc. franc. Céram., No. 20.Google Scholar
De keyser, W. L., 1959. Silicates Industr., 24, 117, 190.Google Scholar