ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Regular Article
Thermodynamic Properties of the CaO–AlO1.5–CeO1.5 System
Ryo KitanoMakoto IshiiMotohiro UoKazuki Morita
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2016 Volume 56 Issue 11 Pages 1893-1901

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Abstract

In this study, the thermodynamic properties of the CaO–AlO1.5–CeO1.5 system have been investigated. The chemical compositions and crystal structures of ternary intermediate compounds in this system, which have not been fully studied before, have been clarified. In addition, the isothermal phase relationships of the CaO–AlO1.5–CeO1.5 system have been investigated at temperatures of 1823 K and 1873 K by using a chemical equilibrating technique. The activities of CaO, AlO1.5, and CeO1.5 were measured by a chemical equilibrating technique by using molten silver as a reference metal. For some measurements of AlO1.5 activity, copper was used as an alternative reference. In addition, the molten iron composition has been calculated using the activities of each component of the CaO–AlO1.5–CeO1.5 system obtained in the present study.

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© 2016 by The Iron and Steel Institute of Japan
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