Jpn. J. Appl. Phys. 20 (1981) pp. 1041-1045 |Next Article| |Table of Contents|
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Dendritic Structures Developed on Fe-FeSi Eutectic Thin Films below the Eutectic Point
Department of Physics, Faculty of Science and Technology, Science University of Tokyo
(Received November 6, 1980; accepted for publication March 20, 1981)
When Fe-FeSi eutectic thin films are maintained at temperatures below the eutectic point for various periods of time, and then cooled at suitable rates, dendritic structures appear on the specimen surfaces. According to electron microscopic observation, the dendritic structures obtained in such a way are quite similar to those obtained at the eutectic point. Considering that dendritic growth usually takes place when a melt is supercooled, it is concluded from the above fact that the eutectic point of Fe-FeSi eutectic thin film is lower than that of the bulk eutectic alloy.
The nature of this phenomenon was studied to see whether it could be explained by existing theory.
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