Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Infrared Spectroscopic Study of Al Oxides in Al-killed Steel
Fumihiro HONDAKichinosuke HIROKAWA
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JOURNAL OPEN ACCESS

1974 Volume 60 Issue 13 Pages 2013-2017

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Abstract
Aluminium oxides produced by deoxidation process of steel were examined interms of ir. absorption spectroscopy. Theta or the analogous phase of Al2O3 was found generally in Al-killed steel.
Absorption spectrum proves the tetrahedral sites in monoclinic Al2O3 are partially occupied by Al atom and the occupation probability ratio of tetrahedral site to octahedral site is not constant in deoxidized and killed steel by Al. The deoxidation product could be considered to be in the transitional structure from theta to alpha phase. Preliminary experiments show the theta crystal synthesized is partially soluble to acids compared with alpha-Al2O3. The solubility to acids may effect on the collecting yield of Al2O3 included in steel.
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© The Iron and Steel Institute of Japan

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