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Title: Synthesis and Magnetic Properties of Soft Magnetic Composites Based on Silicone Resin-Coated Iron Powders

Abstract

Iron-based soft magnetic composites with silicone resin coating have been designed to reduce the core loss and improve the magnetic properties of cores. The silicone resin serving as electrical insulating layer was modified by 3-glycidoxypropyltrimethoxy silane, and the effect of silicone resin content, coupling agent, annealing treatment, and thermal cycling on the magnetic properties of composites was investigated in the frequency range from DC to 150 kHz. The coated silicone resin insulating layer was characterized by scanning electron microscopy and energy dispersive spectroscopy. The results showed that the optimum coating content of silicone resin to attain the acceptable permeability and the minimum magnetic loss for the prepared composites is 4 wt%. The sample with silicone resin coat exhibited better DC-bias superposition characteristics compared to the uncoated sample, 6 wt% silicone resin coating sample have excellent percentage effective permeability (84.8%) under 50 Oe applied field. AC magnetic properties evaluated at 1 and 100 kHz do not vary with a 95% confidence interval with the number of thermal cycles; therefore, the properties of the silicone resin-insulating composites are stable under thermal cycling.

Authors:
; ; ; ;  [1];  [2]
  1. Zhengzhou University of Light Industry, Mechanical and Electrical Engineering Institute (China)
  2. University of Science and Technology Beijing, School of Materials Science and Engineering (China)
Publication Date:
OSTI Identifier:
22774100
Resource Type:
Journal Article
Journal Name:
Journal of Superconductivity and Novel Magnetism
Additional Journal Information:
Journal Volume: 31; Journal Issue: 2; 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; ANNEALING; COATINGS; COMPOSITE MATERIALS; IRON; KHZ RANGE; LAYERS; MAGNETIC PROPERTIES; PERMEABILITY; POWDERS; RESINS; SCANNING ELECTRON MICROSCOPY; SILANES; SILICONES; SPECTROSCOPY; SYNTHESIS; THERMAL CYCLING

Citation Formats

Wu, Shen, Fan, Jianglei, Liu, Jianxiu, Gao, Hongxia, Zhang, Dehai, and Sun, Aizhi. Synthesis and Magnetic Properties of Soft Magnetic Composites Based on Silicone Resin-Coated Iron Powders. United States: N. p., 2018. Web. doi:10.1007/S10948-017-4256-5.
Wu, Shen, Fan, Jianglei, Liu, Jianxiu, Gao, Hongxia, Zhang, Dehai, & Sun, Aizhi. Synthesis and Magnetic Properties of Soft Magnetic Composites Based on Silicone Resin-Coated Iron Powders. United States. doi:10.1007/S10948-017-4256-5.
Wu, Shen, Fan, Jianglei, Liu, Jianxiu, Gao, Hongxia, Zhang, Dehai, and Sun, Aizhi. Thu . "Synthesis and Magnetic Properties of Soft Magnetic Composites Based on Silicone Resin-Coated Iron Powders". United States. doi:10.1007/S10948-017-4256-5.
@article{osti_22774100,
title = {Synthesis and Magnetic Properties of Soft Magnetic Composites Based on Silicone Resin-Coated Iron Powders},
author = {Wu, Shen and Fan, Jianglei and Liu, Jianxiu and Gao, Hongxia and Zhang, Dehai and Sun, Aizhi},
abstractNote = {Iron-based soft magnetic composites with silicone resin coating have been designed to reduce the core loss and improve the magnetic properties of cores. The silicone resin serving as electrical insulating layer was modified by 3-glycidoxypropyltrimethoxy silane, and the effect of silicone resin content, coupling agent, annealing treatment, and thermal cycling on the magnetic properties of composites was investigated in the frequency range from DC to 150 kHz. The coated silicone resin insulating layer was characterized by scanning electron microscopy and energy dispersive spectroscopy. The results showed that the optimum coating content of silicone resin to attain the acceptable permeability and the minimum magnetic loss for the prepared composites is 4 wt%. The sample with silicone resin coat exhibited better DC-bias superposition characteristics compared to the uncoated sample, 6 wt% silicone resin coating sample have excellent percentage effective permeability (84.8%) under 50 Oe applied field. AC magnetic properties evaluated at 1 and 100 kHz do not vary with a 95% confidence interval with the number of thermal cycles; therefore, the properties of the silicone resin-insulating composites are stable under thermal cycling.},
doi = {10.1007/S10948-017-4256-5},
journal = {Journal of Superconductivity and Novel Magnetism},
issn = {1557-1939},
number = 2,
volume = 31,
place = {United States},
year = {2018},
month = {2}
}