Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution

The effect of different particle size distribution of Fe-6.5 wt%Si powder on the microstructure and soft magnetic properties of the corresponding soft magnetic powder cores (SMPCs) was investigated. By optimizing particle size distribution, the density of SMPCs increased and the total core loss sign...

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Main Authors: JianJun Huang, Lixin Jiao, Yu Yang, Yaqiang Dong, Yiqun Zhang, Liang Chang, Mengji Gong, Jiawei Li, Aina He, Xinmin Wang
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/10/12/1699
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author JianJun Huang
Lixin Jiao
Yu Yang
Yaqiang Dong
Yiqun Zhang
Liang Chang
Mengji Gong
Jiawei Li
Aina He
Xinmin Wang
author_facet JianJun Huang
Lixin Jiao
Yu Yang
Yaqiang Dong
Yiqun Zhang
Liang Chang
Mengji Gong
Jiawei Li
Aina He
Xinmin Wang
author_sort JianJun Huang
collection DOAJ
description The effect of different particle size distribution of Fe-6.5 wt%Si powder on the microstructure and soft magnetic properties of the corresponding soft magnetic powder cores (SMPCs) was investigated. By optimizing particle size distribution, the density of SMPCs increased and the total core loss significantly decreased. According to the result of loss separation, density of SMPCs is inversely proportional to hysteresis loss, while with increasing the content of the fine particles, the eddy current loss significantly decreased. It was found that with magnetic powder of particle size-grading as 10%, 10%, 60%, and 20% for particles with size between −75 to +38, −38 to +23, −23 to +13, and −13 μm, respectively, the Fe-6.5 wt%Si SMPCs exhibit optimal comprehensive magnetic performances with the effective permeability of about 60, the percent permeability at 100 Oe is up to 70%, and the lowest core loss of 553 mW/cm<sup>3</sup>.
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spelling doaj.art-48a13aec8b724fde9fe99226b25c0e752023-11-21T01:51:56ZengMDPI AGMetals2075-47012020-12-011012169910.3390/met10121699Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size DistributionJianJun Huang0Lixin Jiao1Yu Yang2Yaqiang Dong3Yiqun Zhang4Liang Chang5Mengji Gong6Jiawei Li7Aina He8Xinmin Wang9Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaBaowu Environmental Technology Wuhan Metal Resources Co., Ltd., Wuhan 430000, ChinaBaowu Environmental Technology Wuhan Metal Resources Co., Ltd., Wuhan 430000, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaZhejiang Province Key Laboratory of Magnetic Materials and Application Technology, CAS Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201, ChinaThe effect of different particle size distribution of Fe-6.5 wt%Si powder on the microstructure and soft magnetic properties of the corresponding soft magnetic powder cores (SMPCs) was investigated. By optimizing particle size distribution, the density of SMPCs increased and the total core loss significantly decreased. According to the result of loss separation, density of SMPCs is inversely proportional to hysteresis loss, while with increasing the content of the fine particles, the eddy current loss significantly decreased. It was found that with magnetic powder of particle size-grading as 10%, 10%, 60%, and 20% for particles with size between −75 to +38, −38 to +23, −23 to +13, and −13 μm, respectively, the Fe-6.5 wt%Si SMPCs exhibit optimal comprehensive magnetic performances with the effective permeability of about 60, the percent permeability at 100 Oe is up to 70%, and the lowest core loss of 553 mW/cm<sup>3</sup>.https://www.mdpi.com/2075-4701/10/12/1699soft magnetic compositesphosphatingcore lossparticle size distribution
spellingShingle JianJun Huang
Lixin Jiao
Yu Yang
Yaqiang Dong
Yiqun Zhang
Liang Chang
Mengji Gong
Jiawei Li
Aina He
Xinmin Wang
Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
Metals
soft magnetic composites
phosphating
core loss
particle size distribution
title Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
title_full Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
title_fullStr Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
title_full_unstemmed Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
title_short Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution
title_sort fe 6 5 wt si powder cores with low core loss by optimizing particle size distribution
topic soft magnetic composites
phosphating
core loss
particle size distribution
url https://www.mdpi.com/2075-4701/10/12/1699
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