Magnetic Properties of Nd5Fe71Co5Cu0.5Nb1B17.5 System Exchange-Spring Bonded Magnets
نویسندگان
چکیده
منابع مشابه
Improving exchange-spring nanocomposite permanent magnets
We demonstrate a counterintuitive approach for improving exchange-spring magnets. Contrary to the general belief that the exchange–spring interface must be ideal and atomically coherent, we thermally process, by annealing or high-temperature deposition, epitaxial Sm–Co/Fe thin-film bilayers to induce interfacial mixing. Synchrotron x-ray scattering and electron microscopy elemental mapping conf...
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The effects of high temperature homogenization and low temperature annealing treatments on the microstructure and magnetic properties of sintered magnets of an Nd17Fe76.5B5Cu1.5 type alloy have been investigated. The microstructure of the as-cast alloy, consisted of three phases including a Nd2Fe14B1 (2:14:1- type) matrix phase Cu-containing Nd-rich Phase and Free α-iron. The as-sintered magnet...
متن کاملThe Effect of Heat Treatment on Microstructure and Magnetic Properties of Nd17Fe76.5B5Cu1.5 Type Sintered Magnets
The effects of high temperature homogenization and low temperature annealing treatments on the microstructure and magnetic properties of sintered magnets of an Nd17Fe76.5B5Cu1.5 type alloy have been investigated. The microstructure of the as-cast alloy, consisted of three phases including a Nd2Fe14B1 (2:14:1- type) matrix phase Cu-containing Nd-rich Phase and Free α-iron. The as-sintered magnet...
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Effects of post-sintering annealing treatment between 300 and 1000ºC for up to 8 hrs time periods followed by either furnace cooling (FC) or air-cooling (AC) on the hard magnetic properties of some Nd-Fe-B based sintered magnets was investigated. It was shown that the intrinsic coercivity (Hci), second quadrant demagnetization loop shape and thus the energy density (BH)max varied considerably a...
متن کاملRole of diffused Co atoms in improving effective exchange coupling in Sm-Co/Fe spring magnets
Y. Choi,1,2 J. S. Jiang,1 Y. Ding,3 R. A. Rosenberg,4 J. E. Pearson,1 S. D. Bader,1 A. Zambano,5 M. Murakami,5 I. Takeuchi,5 Z. L. Wang,3 and J. P. Liu2 1Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA 2Department of Physics, University of Texas at Arlington, Arlington, Texas 76019, USA 3School of Materials Science and Engineering, Georgia Institute of Tech...
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ژورنال
عنوان ژورنال: Journal of the Magnetics Society of Japan
سال: 1998
ISSN: 0285-0192
DOI: 10.3379/jmsjmag.22.369