Effect of the Substructure upon Magnetic Properties of Iron-Silicon Single Crystals

Abstract

The substructure was observed means of the X-ray diffraction microscopy and the magnetic properties were measured at room temperature on single crystals of 4% Si-Fe alloys as produced from the melt at various growth rates. Single crystals produced at slow cooling rate consist of large subgrains with a small orientation difference and have small coercive force and large remanent magnetization, as compared with those produced at fast cooling rate. Such a dependence of magnetic properties upon the substructure is discussed in terms of the nature of sub-boundaries.