Polydopamine/polyethyleneimine enhanced Fe-based amorphous powder cores with improved magnetic properties

Yan Huang; Bowen Zang; Chang Zhang; Mingliang Xiang; Peng Xiao; Juntao Huo; Meng Gao; Rie Umetsu; Min Ji; Bingnan Yao; Yan Zhang; Yaocen Wang; Junqiang Wang

doi:10.1016/j.jallcom.2022.165889

Polydopamine/polyethyleneimine enhanced Fe-based amorphous powder cores with improved magnetic properties

Yan Huang
, Bowen Zang
, Chang Zhang
, Mingliang Xiang
, Peng Xiao
, Juntao Huo
, Meng Gao
, Rie Umetsu
, Min Ji
, Bingnan Yao
, Yan Zhang^*
, Yaocen Wang^*
, Junqiang Wang

^*Corresponding author for this work

CAS - Ningbo Institute of Material Technology and Engineering
University of Science and Technology of China
University of Chinese Academy of Sciences
Tohoku University
Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

Coating soft magnetic powders by an insulation layer is an effective way to improve the high-frequency performance of soft magnetic powder cores. The quality of insulation coating is highly dependent of the coating materials and the coating method. In the present work, a commercial amorphous powder (Fe₇₃Si₁₁B₁₁C₃Cr₂) was primarily coated by a PDA/PEI layer by a co-deposition method in alkaline solution. A thick PDA/PEI layer with good homogeneity was co-deposited on the surface of amorphous soft magnetic powders. The high frequency core loss of magnetic powder cores was reduced by up to ~ 44 % at the magnetic induction of 0.1 T and the frequency of 100 kHz by primarily coating the amorphous powders by PDA/PEI. Microscopic images showed that the PDA/PEI coating layer on the amorphous powders does not peel off while being compressed. These results indicates that PDA/PEI insulation coating is a coating method which can effectively improve the comprehensive magnetic properties of magnetic powder cores.

Original language	English
Article number	165889
Journal	Journal of Alloys and Compounds
Volume	920
DOIs	https://doi.org/10.1016/j.jallcom.2022.165889
State	Published - 5 Nov 2022
Externally published	Yes

Keywords

Amorphous
Cross-linked 3-D network structure
High frequency
Insulation coating
Peel
Polydopamine/polyethyleneimine (PDA/PEI)
Powder core
Soft magnetic property

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10.1016/j.jallcom.2022.165889

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@article{42c8ed11ec39429fb565d3d1f84356a3,

title = "Polydopamine/polyethyleneimine enhanced Fe-based amorphous powder cores with improved magnetic properties",

abstract = "Coating soft magnetic powders by an insulation layer is an effective way to improve the high-frequency performance of soft magnetic powder cores. The quality of insulation coating is highly dependent of the coating materials and the coating method. In the present work, a commercial amorphous powder (Fe73Si11B11C3Cr2) was primarily coated by a PDA/PEI layer by a co-deposition method in alkaline solution. A thick PDA/PEI layer with good homogeneity was co-deposited on the surface of amorphous soft magnetic powders. The high frequency core loss of magnetic powder cores was reduced by up to \textasciitilde{} 44 \% at the magnetic induction of 0.1 T and the frequency of 100 kHz by primarily coating the amorphous powders by PDA/PEI. Microscopic images showed that the PDA/PEI coating layer on the amorphous powders does not peel off while being compressed. These results indicates that PDA/PEI insulation coating is a coating method which can effectively improve the comprehensive magnetic properties of magnetic powder cores.",

keywords = "Amorphous, Cross-linked 3-D network structure, High frequency, Insulation coating, Peel, Polydopamine/polyethyleneimine (PDA/PEI), Powder core, Soft magnetic property",

author = "Yan Huang and Bowen Zang and Chang Zhang and Mingliang Xiang and Peng Xiao and Juntao Huo and Meng Gao and Rie Umetsu and Min Ji and Bingnan Yao and Yan Zhang and Yaocen Wang and Junqiang Wang",

note = "Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2022",

month = nov,

day = "5",

doi = "10.1016/j.jallcom.2022.165889",

language = "英语",

volume = "920",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Polydopamine/polyethyleneimine enhanced Fe-based amorphous powder cores with improved magnetic properties

AU - Huang, Yan

AU - Zang, Bowen

AU - Zhang, Chang

AU - Xiang, Mingliang

AU - Xiao, Peng

AU - Huo, Juntao

AU - Gao, Meng

AU - Umetsu, Rie

AU - Ji, Min

AU - Yao, Bingnan

AU - Zhang, Yan

AU - Wang, Yaocen

AU - Wang, Junqiang

PY - 2022/11/5

Y1 - 2022/11/5

N2 - Coating soft magnetic powders by an insulation layer is an effective way to improve the high-frequency performance of soft magnetic powder cores. The quality of insulation coating is highly dependent of the coating materials and the coating method. In the present work, a commercial amorphous powder (Fe73Si11B11C3Cr2) was primarily coated by a PDA/PEI layer by a co-deposition method in alkaline solution. A thick PDA/PEI layer with good homogeneity was co-deposited on the surface of amorphous soft magnetic powders. The high frequency core loss of magnetic powder cores was reduced by up to ~ 44 % at the magnetic induction of 0.1 T and the frequency of 100 kHz by primarily coating the amorphous powders by PDA/PEI. Microscopic images showed that the PDA/PEI coating layer on the amorphous powders does not peel off while being compressed. These results indicates that PDA/PEI insulation coating is a coating method which can effectively improve the comprehensive magnetic properties of magnetic powder cores.

AB - Coating soft magnetic powders by an insulation layer is an effective way to improve the high-frequency performance of soft magnetic powder cores. The quality of insulation coating is highly dependent of the coating materials and the coating method. In the present work, a commercial amorphous powder (Fe73Si11B11C3Cr2) was primarily coated by a PDA/PEI layer by a co-deposition method in alkaline solution. A thick PDA/PEI layer with good homogeneity was co-deposited on the surface of amorphous soft magnetic powders. The high frequency core loss of magnetic powder cores was reduced by up to ~ 44 % at the magnetic induction of 0.1 T and the frequency of 100 kHz by primarily coating the amorphous powders by PDA/PEI. Microscopic images showed that the PDA/PEI coating layer on the amorphous powders does not peel off while being compressed. These results indicates that PDA/PEI insulation coating is a coating method which can effectively improve the comprehensive magnetic properties of magnetic powder cores.

KW - Amorphous

KW - Cross-linked 3-D network structure

KW - High frequency

KW - Insulation coating

KW - Peel

KW - Polydopamine/polyethyleneimine (PDA/PEI)

KW - Powder core

KW - Soft magnetic property

UR - https://www.scopus.com/pages/publications/85132726487

U2 - 10.1016/j.jallcom.2022.165889

DO - 10.1016/j.jallcom.2022.165889

M3 - 文章

AN - SCOPUS:85132726487

SN - 0925-8388

VL - 920

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

M1 - 165889

ER -

Polydopamine/polyethyleneimine enhanced Fe-based amorphous powder cores with improved magnetic properties

Abstract

Keywords

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