Preparation and magnetic properties of anisotropic Nd_2Fe_(14)B/Sm_2Co_(17) hybrid-bonded magnets |
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| Affiliation: | 1. College of Material Science and Engineering, Chongqing University of Technology, Chongqing 400054, China;2. College of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China;3. College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China;1. Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;2. Department of Nano-Medicine Research, Institute for Research & Medical Consultations (IRMC), Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia;1. College of Physics and Electronic Engineering, Sichuan Normal University, Chengdu 610101, China;2. Collaborative Innovation Center for Shanxi Advanced Permanent Materials and Technology, Linfen 041004, China;3. State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;1. M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, Str. S. Kovalevskoy, 18 Ekaterinburg, 620990, Russia;2. Institute of Natural Sciences and Mathematics, Ural Federal University, pr. Mira, 19 Ekaterinburg, 620002, Russia;3. School of Materials Science and Engineering, Beihang University, Beijing 100191, China;1. Institute of Nanoscience and Nanotechnology, NCSR Demokritos, 15310, Athens, Greece;2. Department of Physics and Astronomy, University of Delaware, Newark, DE, USA;3. Department of Physics, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece;4. Departamento de Física, Universidad del Valle, A.A. 25360, Cali, Colombia;1. Division of Functional Materials, Central Iron and Steel Research Institute, Beijing, 100081, China;2. Ningbo Jinji Strong Magnetic Material Co.,Ltd., Ningbo, 315172, China;3. Jiangxi Jiangwu Rare Metal New Material Co., Ltd., Nanchang, 330013, China |
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| Abstract: | In the present work, anisotropic Nd2Fe14B/Sm2Co17 hybrid-bonded magnets were prepared with different Nd-Fe-B contents. It is found that the particle distributions and ratios between the two magnetic phases have important roles in the magnetic properties, microstructures and thermal stability of the magnets. With increase of Nd-Fe-B content, the saturation magnetization of the anisotropic hybrid magnet increases significantly, however, coercivity decreases, and the demagnetization curves show magnetically single-phase behavior. The anisotropic Nd2Fe14B/Sm2Co17 hybrid-bonded magnets exhibit a maximum energy product and remanence of 14.15 MGOe and 99.53 A·m2/kg, respectively, when the Nd-Fe-B content is 70 wt% at room temperature. Furthermore, the hybrid magnets also have better thermal stability at elevated temperatures due to the interaction between the two magnetic particles. |
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| Keywords: | Magnetic properties Anisotropic Hybrid-bonded magnets Thermal stability Rare earths |
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