کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
12017309 | 1025170 | 2019 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Evidence of exchange coupling in Ï-MnAlC/FeCo system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The Ï-MnAlC/FeCo system has potential to be applied as rare earth-free permanent magnet, due to exchange coupled between hard and soft magnetic phases as alternative for the development of high energy product permanent magnets. In this work the hard-magnetic phase Mn53.3Al45C1.7 (μ0Hcâ¯=â¯0.37â¯T of coercive force, Mrâ¯=â¯23.52â¯Am2/kg of remanent magnetization, Msâ¯=â¯52.94â¯Am2/kg of saturation magnetization and (BH)maxâ¯=â¯3.89â¯kJ/m3 of maximum energy product) was mixed with the soft magnetic phase Fe65Co35 (μ0Hcâ¯=â¯0.007â¯T and Msâ¯=â¯221.33â¯Am2/kg) using a solid-state procedure. The magnetic materials were sintered using different ratios of hard and soft magnetic phases: 95:5, 90:10, 85:15 and 80:20; and different sintering temperatures (300, 400, 500 and 600â¯Â°C) in order to improve the magnetic properties. The magnetic exchange coupling between MnAlC and FeCo was proved by the hysteresis loop and its corresponding Thamm-Hesse analysis. The best result was obtained for MnAlC/FeCo (95/5â¯wt%) sintered at 500â¯Â°C during 30â¯min, for which the magnetic properties were μ0Hcâ¯=â¯0.277â¯T, Msâ¯=â¯76.43â¯Am2/kg and (BH)maxâ¯=â¯5.57â¯kJ/m3.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Magnetism and Magnetic Materials - Volume 473, 1 March 2019, Pages 221-227
Journal: Journal of Magnetism and Magnetic Materials - Volume 473, 1 March 2019, Pages 221-227
نویسندگان
H. MartÃnez Sánchez, L.E. Zamora Alfonso, J.S. Trujillo Hernandez, G.A. Pérez Alcázar,