Orientation texture of local habit planes and its relevance to local magnetic performance in a hot deformed PrCo5 bulk permanent magnet

Abstract

By virtue of the electron backscattered diffraction approach and the two-dimensional five parameter analysis method, the orientation texture of the crystallographic habit planes in a hot deformed PrCo₅ bulk permanent magnet is investigated. The results show that the orientations of habit planes are textured, and these orientation textures are heterogeneous at different locations in the magnet. By interrogating the idealized hexagonal polygon to represent the habit plane orientation texture, the average three-dimensional shapes of magnetic crystals at different locations are described, which could benefit the determining of local magnetic characteristics by referring to the relative lengths of easy and hard axes in the polygon. The study therefore suggests a new understanding of the pathway to evaluate the crystallographic orientation dependent performances.