Protection of NdFeB magnets by ultra-thin sol-gel derived films

S. N.B. Hodgson, C. G. Hoggarth, H. A. Davies, R. A. Buckley

Research output: Contribution to journalConference articleResearchpeer-review

11 Citations (Scopus)

Abstract

The exploitation of NdFeB magnets has been limited by problems of corrosion. The paper describes a novel process, to impart corrosion protection to NdFeB powders, based upon the deposition of a stable and tenacious protective film of submicron thickness via a sol-gel route. The effect of the deposition conditions and coating composition, together with the effect of reaction modifying additives are discussed, and related to the relative performance of the coating in imparting corrosion protection. The process could be exploited to extend the durability of and range of applications for these materials.

Original languageEnglish
Pages (from-to)518-524
Number of pages7
JournalJournal of Materials Processing Technology
Volume92-93
DOIs
Publication statusPublished - 30 Aug 1999
EventAdvances in Materials and Processing Technologies 1997 - Guimaraes, Portugal
Duration: 22 Jul 199726 Jul 1997

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Corrosion protection
Sol-gels
Magnets
Coatings
Protective coatings
Powders
Durability
Corrosion
Chemical analysis

Cite this

Hodgson, S. N.B. ; Hoggarth, C. G. ; Davies, H. A. ; Buckley, R. A. / Protection of NdFeB magnets by ultra-thin sol-gel derived films. In: Journal of Materials Processing Technology. 1999 ; Vol. 92-93. pp. 518-524.
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Protection of NdFeB magnets by ultra-thin sol-gel derived films. / Hodgson, S. N.B.; Hoggarth, C. G.; Davies, H. A.; Buckley, R. A.

In: Journal of Materials Processing Technology, Vol. 92-93, 30.08.1999, p. 518-524.

Research output: Contribution to journalConference articleResearchpeer-review

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