Room-temperature electroless deposition of high-coercivity Co-Ni-P films

Matsuda, Hitoshi; Jones, G. A.; Takano, Osamu; Grundy, P.J.

doi:10.1016/0304-8853(93)91356-c

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2022

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Cited by 19 publications

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“…However, the magnetic performance of sintered Nd-Fe-B always unfortunately deteriorates after depositing. Cobalt has been commonly selected as an effective additional element for imparting magnetic properties in the Ni-P based deposits on other magnetic materials [9,10,11,12]. In order to minimize the loss of magnetic properties, Ni-Co-P alloy has been deposited on sintered Nd-Fe-B permanent magnets as protective coatings in this work.…”

Section: Introductionmentioning

confidence: 99%

Electroless Ni-Co-P Coatings on Sintered Nd-Fe-B Magnets with Improved Corrosion Resistance

Hua

Yan

2009

AMR

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Electroless Ni-Co-P coatings have been deposited on sintered Nd-Fe-B permanent magnets by optimizing the bath composition and operating conditions. The corrosion resistance of coated Nd-Fe-B magnets was significantly improved and corresponding corrosion current density Icorr in 3.5 wt. % NaCl solution decreased by two orders of magnitude. Coated with 12μm-thick Ni-Co-P, Nd-Fe-B magnets possessed slight reduction in magnetic properties, with a modest loss of remanence (Br) by 3.9 % and coercivity (iHC) by 4.5 %.

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Section: Introductionmentioning

confidence: 99%