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

fYear

2005

fDate

4-8 April 2005

Firstpage

941

Lastpage

942

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1463899

Filename

1463899