On Dendritic Structures Caused by Contact between Iron and Silicon below Their Eutectic Temperatures

概要

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When iron and silicon were brought into contact by the method of vacuum evaporation and annealed at temperatures below their lowest eutectic points for various time periods, many indications of dendritic crystailization were observed on the specimen surfaces. The dendritic structures obtained in such a way were compared with those obtained at temperatures higher than the eutectic point. Both structures were so much alike that it was almost impossible to distinguish one from the other. Based on the well-known fact that dendritic growth takes place when the melt is supercooled, it follows that fusion or fusion-like phenomenon has occurred at a temperature below the lowest eutectic point. The cause of such anomaly was studied and explained by means of a metastable quasi-equilibrium state.
社団法人応用物理学会の論文
1974-03-05