Low core loss of Fe85Si2B8P4Cu1 nanocrystalline alloys with high Bs and B800 |
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| Authors: | Takeshi Kubota Akihiro Makino Akihisa Inoue |
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| Affiliation: | 1. Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku Sendai 980-8577, Japan;2. Tohoku University, 2-1-1 Katahira, Aoba-ku Sendai 980-8577, Japan;1. School of Science, Tianjin University, Tianjin 300072, PR China;2. School of Materials Science and Engineering, Tianjin University, Tianjin 300072, PR China;1. Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia;2. Zientzia eta Teknologia Fakultatea, Euskal Herriko Unibertsitatea, 644pk, Bilbao 48080, Spain;3. Graduate School of Engineering, Nagasaki University, Nagasaki 852-8521, Japan;4. Toyota Motor Corporation, Mishuku, Susono, Shizuoka 410-1193, Japan;1. AMP Division, CSIR-National Metallurgical Laboratory, Jamshedpur-831007, India;2. MTE Division, CSIR-National Metallurgical Laboratory, Jamshedpur-831007, India;3. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India;4. Department of Physics, Indian Institute of Technology, Jodhpur-342037, India;1. School of Energy and Power Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China;2. School of Material Science and Engineering, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai 200093, China;3. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Science, 1219 Zhongguan West Road, Ningbo, Zhejiang 315201, China;4. Ningbo Yunsheng Corp, 225 Canghai Road, Gaoxin District, Ningbo, Zhejiang 315201, China;1. School of Materials Science and Engineering, Key Laboratory of Green Fabrication and Surface Technology of Advanced Metal Materials, Ministry of Education, Anhui University of Technology, Ma’anshan 243032, China;2. School of Materials and Physics, China University of Mining and Technology, Xuzhou 221116, China;3. Jiangsu Key Laboratory for Advanced Metallic Materials, School of Materials Science and Engineering, Southeast University, Nanjing 211189, China;1. Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, Zhejiang, 315201, China;2. Center for Advanced Structural Materials, Department of Mechanical Engineering, College of Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong, China;3. University of Chinese Academy of Sciences, 19 A Yuquan Rd, Shijingshan District, Beijing, 100049, China;4. Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China |
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| Abstract: | The Fe–Si–B–P–Cu nanocrystalline alloys exhibit high saturation magnetic flux density (Bs) as well as good soft magnetic properties such as low coercivity, high effective permeability and low magnetostriction after nanocrystallization. In this paper, the Fe85Si2B8P4Cu1 alloy has been newly developed. On the viewpoint of magnetic softness, the Fe85Si2B8P4Cu1 nanocrystalline alloy reveals low core loss (W) at a commercially frequency of 50 Hz in the maximum induction (Bm) range of up to 1.75 T, and the W in the Bm range of less than 1.8 T is smaller than that of the highest-graded oriented Si-steel due to high magnetic flux density at 800 A/m (B800) of above 1.8 T and excellent magnetic softness originated from much higher Fe content and uniform nanocrystalline structure with small magnetostriction. The electrical resistivity (ρ) is relative higher than Si-steels. Thus the Fe–Si–B–P–Cu alloys are attractive for applying to magnetic parts such as motors, transducers, choke-coils and so-forth. |
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