Title :
Development of anisotropic bonded magnet with heat resistance
Author :
Hamada, N. ; Noguchi, K. ; Mishima, C. ; Honkura, Y.
Author_Institution :
Div. of Electron. & Magnetic Products, Aichi Steel Corp., Japan
Abstract :
The Nd-Fe-B anisotropic magnet powder was prepared through d-HDDR (hydrogenation, disproportionation, desorption, recombination) treatment. The powder mixed with fine Dy-Fe alloy hydride is heat treated in vacuum (Dy diffusion treatment). The magnet powder properties are measured by vibrating sample magnetometer (VSM) after alignment. Particle size is measured by laser diffraction method. The magnet properties of anisotropic bonded magnets are measured using BH tracer. Flux of the radially aligned ring-shape bonded magnet is measured by flux meter.
Keywords :
boron alloys; coercive force; desorption; ferromagnetic materials; heat treatment; hydrogenation; iron alloys; magnetic flux; magnetic particles; neodymium alloys; particle size; permanent magnets; thermal conductivity; BH tracer; NdFeB; VSM; anisotropic bonded magnet; d-HDDR treatment; desorption; disproportionation; fine Dy-Fe alloy hydride; heat resistance; hydrogenation; laser diffraction; magnetic flux; particle size; recombination; vibrating sample magnetometer; Anisotropic magnetoresistance; Bonding; Electrical resistance measurement; Heat treatment; Magnetic anisotropy; Magnetic flux; Magnetic properties; Perpendicular magnetic anisotropy; Powders; Resistance heating;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1463899
