High performance RFeCoZrB bonded magnets having low Nd content

Author

Yoneyama, T. ; Nakamura, H. ; Anan, K. ; Nishiuchi, A. ; Fukuno, A.

Author_Institution

TDK Corp., Chiba, Japan

Volume

26

Issue

5

fYear

1990

fDate

9/1/1990 12:00:00 AM

Firstpage

1963

Lastpage

1965

Abstract

The magnetic properties of resin bonded magnets made of rapidly quenched RFeCoZrB alloys with lower than stoichiometric Nd content were investigated. Two kinds of alloys were studied: NdFeCoZrB alloys and MM (misch metal)-based RFeCoZrB alloys. Isotropic resin bonded magnets with (BH)_max as high as 13 MGOe were obtained with the NdFeCoZrB alloys. For the MM-based magnets, a (BH)_m of 9.5 MGOe was obtained. Both magnets show good magnetizability and high loop squareness

Keywords

boron alloys; cobalt alloys; demagnetisation; ferromagnetic properties of substances; iron alloys; magnetic hysteresis; magnetisation; neodymium alloys; permanent magnets; zirconium alloys; NdFeCoZrB magnets; demagnetisation curve; density dependence; flux loss; isotropic resin bonded magnets; loop squareness; magnetic properties; magnetisation; misch metal based alloys; rapidly quenched alloys; ribbons; stoichiometric Nd content; temperature dependence; Bonding; Iron alloys; Magnetic field measurement; Magnetic properties; Magnets; Neodymium; Powders; Pulse measurements; Resins; Tellurium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.104583

Filename

104583