Title :
Heat resistant plastic magnets
Author :
Kume, Michiya ; Hayashi, Masaki ; Yamamoto, Bluneo ; Kawamura, Kuniyasu ; Ihara, K.
Author_Institution :
Nichia Corp., Anan-Shi, Japan
Abstract :
A new SmFeN plastic magnet that has the heat resistance of 473 K was developed. In order to achieve high heat resistance, the surface treatment of the SmFeN powder was carried out by Zn, and a resin called PBN was chosen. By the Zn treatment, powder coercivity went up from 1040 kA/m to 1600 kA/m. Moreover, since the melting point of PBN resin was 516 K, we could make a heat resistant plastic magnet, keeping process temperature at 573 K or less.
Keywords :
coercive force; ferromagnetic materials; magnetic particles; melting point; plastics; resins; samarium compounds; surface treatment; 473 K; 516 K; PBN resin; Sm2Fe17N3:Zn; Zn treatment; coercivity; heat resistant plastic magnets; melting point; powder; surface treatment; Coercive force; Heat treatment; Magnets; Plastics; Powders; Resins; Resistance heating; Surface resistance; Surface treatment; Zinc;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464077
