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Title: Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application

Abstract

To meet the growing need for energy efficiency in power electronics and electric machines, a number of new soft magnetic materials are being investigated. Among them, high silicon Fe-Si alloy has been recognized as a promising candidate for low-to-medium-frequency applications. Compared to the currently most widely used 3 wt% silicon steel, the steel containing 6.5 wt% Si possesses more favorable properties, including high electrical resistivity, good saturation magnetization, and near-zero magnetostriction. However, the high silicon content facilitates the formation of ordered phases, resulting in severe brittleness that prohibits mass production using the economical conventional processing methods. A number of new processing routes have been investigated and inspiring progress has been made. Prototypes of motors and transformers using high silicon steel have been demonstrated with improved efficiency and power density. If the processing cost and limitations of size and shape are properly addressed, high silicon steel is expected to be widely adopted by the industries. Among all the investigated processing techniques, rapid solidification appears to be the most cost-effective method for mass producing thin sheet of high silicon steel. In conclusion this paper reviews the current state-of-the-art of the Fe-Si based soft magnetic materials including their history, structure, properties, processing, andmore » applications.« less

Authors:
 [1];  [2];  [2];  [2];  [1]
  1. Iowa State Univ., Ames, IA (United States); Ames Lab., Ames, IA (United States)
  2. Iowa State Univ., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1502856
Report Number(s):
IS-J-9914
Journal ID: ISSN 0304-8853
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Magnetism and Magnetic Materials
Additional Journal Information:
Journal Volume: 481; Journal Issue: C; Journal ID: ISSN 0304-8853
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Soft magnetic material; Silicon steel; Fe-6.5 wt%Si; Processing; Magnetic properties; Physical properties

Citation Formats

Ouyang, Gaoyuan, Chen, Xi, Liang, Yongfeng, Macziewski, Chad, and Cui, Jun. Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application. United States: N. p., 2019. Web. doi:10.1016/j.jmmm.2019.02.089.
Ouyang, Gaoyuan, Chen, Xi, Liang, Yongfeng, Macziewski, Chad, & Cui, Jun. Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application. United States. doi:10.1016/j.jmmm.2019.02.089.
Ouyang, Gaoyuan, Chen, Xi, Liang, Yongfeng, Macziewski, Chad, and Cui, Jun. Wed . "Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application". United States. doi:10.1016/j.jmmm.2019.02.089. https://www.osti.gov/servlets/purl/1502856.
@article{osti_1502856,
title = {Review of Fe-6.5 wt%Si high silicon steel—A promising soft magnetic material for sub-kHz application},
author = {Ouyang, Gaoyuan and Chen, Xi and Liang, Yongfeng and Macziewski, Chad and Cui, Jun},
abstractNote = {To meet the growing need for energy efficiency in power electronics and electric machines, a number of new soft magnetic materials are being investigated. Among them, high silicon Fe-Si alloy has been recognized as a promising candidate for low-to-medium-frequency applications. Compared to the currently most widely used 3 wt% silicon steel, the steel containing 6.5 wt% Si possesses more favorable properties, including high electrical resistivity, good saturation magnetization, and near-zero magnetostriction. However, the high silicon content facilitates the formation of ordered phases, resulting in severe brittleness that prohibits mass production using the economical conventional processing methods. A number of new processing routes have been investigated and inspiring progress has been made. Prototypes of motors and transformers using high silicon steel have been demonstrated with improved efficiency and power density. If the processing cost and limitations of size and shape are properly addressed, high silicon steel is expected to be widely adopted by the industries. Among all the investigated processing techniques, rapid solidification appears to be the most cost-effective method for mass producing thin sheet of high silicon steel. In conclusion this paper reviews the current state-of-the-art of the Fe-Si based soft magnetic materials including their history, structure, properties, processing, and applications.},
doi = {10.1016/j.jmmm.2019.02.089},
journal = {Journal of Magnetism and Magnetic Materials},
number = C,
volume = 481,
place = {United States},
year = {2019},
month = {2}
}

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