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Title: Effects of Annealing Temperature and Compaction Pressure on Magnetic Properties of Fe–Si Powder Cores Fabricated by an Improved Bluing Method

Abstract

Fe-6.5wt%Si soft magnetic powder cores were prepared by using an improved bluing insulation method. A high-quality oxide insulation layer with good temperature stability was found to distribute continuously in the intervals between the Fe–Si particles. The effects of the annealing temperature and the compaction pressure on the core’s magnetic properties were investigated in detail. It was found that high temperature and low compaction pressure are beneficial to decrease the core’s inner stress and high compaction pressure is helpful to reduce the air gap. All the variations of the magnetic performance for the powder cores discussed in this paper were explained reasonably by considering these two factors. From the point of view of low loss, 760 °C and 2090 MPa were confirmed to be the relatively best annealing temperature and compaction pressure, respectively. The μ{sub e}, the % μ{sub e} at 100 Oe, and the loss at 50 kHz/1000 Gs for the core prepared under these two conditions are 63.57, 72.82%, and 547.66 mW/cm{sup 3}, respectively.

Authors:
 [1];  [2];  [1];  [3];  [1]; ;  [3];  [2];  [1];  [3]
  1. Hefei University of Technology, School of Materials Science and Engineering and Anhui Provincial Key Laboratory of Advanced Functional Materials and Devices (China)
  2. Electric Power Science Research Institute of Jiangsu Electric Power Company (China)
  3. Jiangsu Red Magnetic Materials Incorporation, Huaian Engineering Research Center of Soft Magnetic Powder Cores and Devices (China)
Publication Date:
OSTI Identifier:
22771307
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 5; Other Information: Copyright (c) 2018 Springer Science+Business Media, LLC, part of Springer Nature; Article Copyright (c) 2017 Springer Science+Business Media, LLC; http://www.springer-ny.com; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1557-1939
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; AIR; ANNEALING; IRON; KHZ RANGE; MAGNETIC PROPERTIES; OXIDES; POWDERS; PRESSURE RANGE MEGA PA; SILICON; STRESSES; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K

Citation Formats

Zhang, Z., Wu, P., Han, S. J., Tang, F. L., Su, H. L., E-mail: hailinsu@hfut.edu.cn, Tong, X. C., Zou, Z. Q., E-mail: zouzq@red-mag.com.cn, Wu, Y. M., Wu, Y. C., E-mail: ycwu@hfut.edu.cn, and Du, Y. W. Effects of Annealing Temperature and Compaction Pressure on Magnetic Properties of Fe–Si Powder Cores Fabricated by an Improved Bluing Method. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4358-0.
Zhang, Z., Wu, P., Han, S. J., Tang, F. L., Su, H. L., E-mail: hailinsu@hfut.edu.cn, Tong, X. C., Zou, Z. Q., E-mail: zouzq@red-mag.com.cn, Wu, Y. M., Wu, Y. C., E-mail: ycwu@hfut.edu.cn, & Du, Y. W. Effects of Annealing Temperature and Compaction Pressure on Magnetic Properties of Fe–Si Powder Cores Fabricated by an Improved Bluing Method. United States. doi:10.1007/S10948-017-4358-0.
Zhang, Z., Wu, P., Han, S. J., Tang, F. L., Su, H. L., E-mail: hailinsu@hfut.edu.cn, Tong, X. C., Zou, Z. Q., E-mail: zouzq@red-mag.com.cn, Wu, Y. M., Wu, Y. C., E-mail: ycwu@hfut.edu.cn, and Du, Y. W. Tue . "Effects of Annealing Temperature and Compaction Pressure on Magnetic Properties of Fe–Si Powder Cores Fabricated by an Improved Bluing Method". United States. doi:10.1007/S10948-017-4358-0.
@article{osti_22771307,
title = {Effects of Annealing Temperature and Compaction Pressure on Magnetic Properties of Fe–Si Powder Cores Fabricated by an Improved Bluing Method},
author = {Zhang, Z. and Wu, P. and Han, S. J. and Tang, F. L. and Su, H. L., E-mail: hailinsu@hfut.edu.cn and Tong, X. C. and Zou, Z. Q., E-mail: zouzq@red-mag.com.cn and Wu, Y. M. and Wu, Y. C., E-mail: ycwu@hfut.edu.cn and Du, Y. W.},
abstractNote = {Fe-6.5wt%Si soft magnetic powder cores were prepared by using an improved bluing insulation method. A high-quality oxide insulation layer with good temperature stability was found to distribute continuously in the intervals between the Fe–Si particles. The effects of the annealing temperature and the compaction pressure on the core’s magnetic properties were investigated in detail. It was found that high temperature and low compaction pressure are beneficial to decrease the core’s inner stress and high compaction pressure is helpful to reduce the air gap. All the variations of the magnetic performance for the powder cores discussed in this paper were explained reasonably by considering these two factors. From the point of view of low loss, 760 °C and 2090 MPa were confirmed to be the relatively best annealing temperature and compaction pressure, respectively. The μ{sub e}, the % μ{sub e} at 100 Oe, and the loss at 50 kHz/1000 Gs for the core prepared under these two conditions are 63.57, 72.82%, and 547.66 mW/cm{sup 3}, respectively.},
doi = {10.1007/S10948-017-4358-0},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 5,
volume = 31,
place = {United States},
year = {2018},
month = {5}
}