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Anisotropic Distribution of Phase Boundaries and its Potential Correlation with Magnetic Properties in a Sintered NdFeB Permanent Magnet
Author(s) -
Yuan Xiaokun,
Zhu Jie
Publication year - 2020
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201900326
Subject(s) - neodymium magnet , grain boundary , materials science , misorientation , magnet , phase (matter) , condensed matter physics , anisotropy , plane (geometry) , metallurgy , microstructure , geometry , mathematics , optics , physics , quantum mechanics
This work reports the grain boundary character distribution (GBCD) on a statistical meaning of phase boundaries that are between Nd 2 Fe 14 B and thin‐layer‐like Nd‐rich phases in a sintered NdFeB magnet. In the low‐textured sample, the phase boundaries are divided into preferred phase boundaries (with a preferred misorientation of 31°/[001] across the boundary plane) and random phase boundaries. By the five parameter analysis (FPA) method, the orientations of phase boundaries as well as the subsets are textured. The correlation between the GBCDs and magnetic properties is suggested via the illustrated anisotropic features at phase boundary positions.