Formation of Well Alligned Rod Type Eutectic Structure for Bulk -FeSi2 by Solid Reaction and Its Orientation Analysis@
Isamu YAMAUCHI, Akio MISHINA, Tomohiko AKAHORI and Yasufumi FUJIWARA
Abstract:A few problems are still remained in a single bulk -FeSi2 formation from liquid phase. As the first step of a single bulk -FeSi2 formation from a solid reaction between highly oriented two phases, unidirectional solidification method was applied to the FeSi2 composition alloy. The growth rates were changed from 1.7m/s to 5.4m/s. The typical rod type eutectic was formed and the matrix was phase and the rod was phase. The size of the phase increased with decrease of the growth rate. The matrix phase was a single crystal below 3.4m/s and its orientation was <100> . All of phase were alligned to <100> independent of growth rate. Key Words:-FeSi2, Rod type eutectic, Peritectoid reaction, EBSP, Semiconductor