Title :
Magnetic properties of Nd-Fe-B HDDR thin hot pressed magnet
Author :
Mori, K. ; Nakayama, R. ; Morimoto, K.
Author_Institution :
Central Res. Inst., Mitsubishi Mater. Corp., Saitama, Japan
Abstract :
Nd-Fe-B dense magnets are prepared by hot pressing of the hydrogenation-decomposition-desorption-recombination (HDDR)-processed powders. The magnetic properties of the HDDR thin hot pressed magnets are then measured with vibrating sample magnetometer after magnetizing them in pulsed magnetic field. The surface morphology of the thin magnets is also observed by using a scanning electron microscope. The results of the measurements are compared with those of sintered magnets.
Keywords :
boron alloys; cobalt alloys; demagnetisation; densification; ferromagnetic materials; gallium alloys; hot pressing; hydrogenation; iron alloys; magnetometers; neodymium alloys; permanent magnets; powder technology; scanning electron microscopy; surface morphology; surface roughness; zirconium alloys; HDDR thin hot pressed magnets; Nd13Fe62.9Co17.4B6.2Zr0.1Ga0.4; dense magnets; hot pressing; hydrogenation-decomposition-desorption-recombination; magnetic properties; pulsed magnetic field; scanning electron microscope; sintered magnets; surface morphology; vibrating sample magnetometer; Electrons; Magnetic field measurement; Magnetic force microscopy; Magnetic properties; Magnetometers; Powders; Pressing; Pulse measurements; Surface morphology; Vibration measurement;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463598
