Optimizing soft magnetic properties by reducing internal defects and residual stress of Fe85-xSi9.6Al5.4Snx soft magnetic composites

Zhonghao Liu; Yaqiang Dong; Xincai Liu; Hao Lu; Yue Wu; Ruiheng Zhang; Yan Ma; Haijie Zhang; Xingjie Jia; Aina He; Jiawei Li; Xinmin Wang

Journal of Materials Research and Technology (May 2022)

Optimizing soft magnetic properties by reducing internal defects and residual stress of Fe85-xSi9.6Al5.4Snx soft magnetic composites

Zhonghao Liu,
Yaqiang Dong,
Xincai Liu,
Hao Lu,
Yue Wu,
Ruiheng Zhang,
Yan Ma,
Haijie Zhang,
Xingjie Jia,
Aina He,
Jiawei Li,
Xinmin Wang

Affiliations

Zhonghao Liu: Zhejiang 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, Zhejiang, 315201, China; Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China
Yaqiang Dong: Zhejiang 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, Zhejiang, 315201, China; University of Chinese Academy of Sciences, Beijing 100049, China; Corresponding author.
Xincai Liu: Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; Corresponding author.
Hao Lu: Zhejiang 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, Zhejiang, 315201, China
Yue Wu: Zhejiang 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, Zhejiang, 315201, China
Ruiheng Zhang: Zhejiang 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, Zhejiang, 315201, China
Yan Ma: Zhejiang 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, Zhejiang, 315201, China
Haijie Zhang: Zhejiang 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, Zhejiang, 315201, China
Xingjie Jia: Zhejiang 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, Zhejiang, 315201, China
Aina He: Zhejiang 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, Zhejiang, 315201, China; University of Chinese Academy of Sciences, Beijing 100049, China
Jiawei Li: Zhejiang 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, Zhejiang, 315201, China; University of Chinese Academy of Sciences, Beijing 100049, China
Xinmin Wang: Zhejiang 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, Zhejiang, 315201, China

Journal volume & issue: Vol. 18
pp. 3872 – 3883

Abstract

Read online

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 × 1014 m−2 to 0.29 × 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.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

About the journal

Abstract

Keywords