MAGNETIC AND CORROSION CHARACTERISTICS OF ND-FE-B MAGNET WITH VARIOUSSURFACE-COATINGS

Authors
CHENG CW MAN HC CHENG FT
Citation
Cw. Cheng et al., MAGNETIC AND CORROSION CHARACTERISTICS OF ND-FE-B MAGNET WITH VARIOUSSURFACE-COATINGS, IEEE transactions on magnetics, 33(5), 1997, pp. 3910-3912
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
5
Year of publication
1997
Part
2
Pages
3910 - 3912
Database
ISI
SICI code
0018-9464(1997)33:5<3910:MACCON>2.0.ZU;2-M
Abstract
Various surface coatings, including duplex Ni(undercoat)/Cr(topcoat), multilayer Ni/Cu/Ni/Cr, Zn, bright Ni, bright Au, and black epoxy were applied to improve the corrosion resistance of the Nd-Fe-B magnet. Th e corrosion behavior of the surface-coated magnets was studied using N ormal and Acetic Acid Salt Spray Tests. The influence of coating and c orrosion on the magnetic properties was also investigated. It was foun d that the duplex Ni/Cr coating provided the best corrosion protection with little deterioration in the magnetic properties during the corro sion process.