Magnetic and corrosion characteristics of Nd-Fe-B magnet with various surface coatings

C. W. Cheng; Hau Chung Man; F. T. Cheng

doi:10.1109/20.619612

Magnetic and corrosion characteristics of Nd-Fe-B magnet with various surface coatings

C. W. Cheng, Hau Chung Man, F. T. Cheng

Research output: Journal article publication › Journal article › Academic research › peer-review

57 Citations (Scopus)

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. The corrosion behavior of the surface-coated magnets was studied using Normal and Acetic Acid Salt Spray Tests. The influence of coating and corrosion on the magnetic properties was also investigated. It was found that the duplex Ni/Cr coating provided the best corrosion protection with little deterioration in the magnetic properties during the corrosion process.

Original language	English
Pages (from-to)	3910-3912
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	33
Issue number	5 PART 2
DOIs	https://doi.org/10.1109/20.619612
Publication status	Published - 1 Dec 1997

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/20.619612

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Magnetic and corrosion characteristics of Nd-Fe-B magnet with various surface coatings

Abstract

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