期刊
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
卷 18, 期 -, 页码 3872-3883出版社
ELSEVIER
DOI: 10.1016/j.jmrt.2022.04.078
关键词
Soft magnetic composites; Composition design; Coercivity; Magnetic domain walls; Electron backscatter diffraction
资金
- Youth Innovation Promotion Association CAS [2021294]
- Science and Technology Service Network Initiative of the Chinese Academy of Sciences [KFJ-STS-QYZD-2021-07-002]
- S&T Innovation 2025 Major Special Program [2021Z038, 2018B10031, 2018B10085]
- National Natural Science Foundation of China [U1809216]
- K.C. Wong Magna Fund in Ningbo University
In this study, Fe85-xSi9.6Al5.4Snx soft magnetic powder cores were prepared by Sn doping, and the effects of the doping on the microstructures and soft magnetic properties were systematically investigated. The crystal grain size, grain orientation, and magnetic domain motion were found to have significant impacts on the magnetic properties.
In this work, Fe85-xSi9.6Al5.4Snx (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) Soft magnetic powder cores (SMPCs) were prepared by Sn doping, and the effects of the doping on the microstructures and soft magnetic properties were systematically investigated. With the increase of Sn content, the dislocation density of SMPCs decreases from 0.53 x 10(14) m(-2) to 0.29 x 1014 m(-2), so does the degree of lattice distortion and the residual stress. These changes optimize the soft magnetic properties of Fe85-xSi9.6Al5.4Snx SMPCs. Based our experiments, the effects of the crystal grain size, grain orientation, and magnetic domain motion on the magnetic properties are also discussed. At last, the best soft magnetic performance was obtained, when Sn doped with 0.8 wt.%. Fe85-xSi9.6Al5.4Snx SMPCs designed by Sn doping have excellent soft magnetic properties, which expands their application advantages in the field of power electronics, the composition design also provides an effective method for the optimization of soft magnetic properties of FeSiAl SMPCs. (C) 2022 The Author(s). Published by Elsevier B.V.
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