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期刊论文
Magnetic properties and coercivity mechanism of isotropic HDDR NdFeB bonded magnets with Co and Dy addition
Journal of Magnetism and Magnetic Materials 261(2003)222-227，-0001，（）：
Isotropic NdDyFeCoB bonded magnets with high coercivity of 1.59MA/m and low temperature coefficient of remanence of -0.056%/K (in the temperature range 298-428 K) were prepared successfully by controlling the HDDR process and adjusting the compositions. The influence of Co and Dy additions on the magnetic properties and the magnetization reversal process in magnet was investigated. The high coercivity in (Nd0.8Dy0.2) 13 (Fe0.875Co0.125) 81 B6 HDDR magnet can be attributed to its unique microstructure and the enhancement of anisotropy field of 2:14:1 phase by substitution of Nd by Dy.
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