The Preparation and Properties of ZnAl Coating for Ring-Shaped Bonded NdFeB Magnet with High Corrosion Resistance

Yang, Youwen; Wang, Yongle; Yang, Lei; Ren, Ruidong; Chen, Yufan; Dong, Buke; Liu, Jiguang; Fang, Xiaogang; Gao, Qinguo

doi:10.1007/s11665-021-06259-1

Cited by 5 publications

(1 citation statement)

References 30 publications

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“…A step further from epoxy coatings is the deposition of composite coatings. Yang et al [ 15 ] mixed epoxy resin with Zn and Al powders in order to prepare coatings that exhibit adequate corrosion resistance for bonded NdFeB magnets. They added Zn and Al powders to the electrophoresis bath.…”

Section: Scientific Literaturementioning

confidence: 99%

Recent Advances in Corrosion Inhibition of Bonded NdFeB Magnets

Primc,

Mozetič

2024

Materials

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Bonded permanent NdFeB magnets are useful in numerous applications, including electric vehicles, and the demand is steadily increasing. A major drawback is corrosion due to inadequate wetting of the magnetic particles by liquid polymers such as polyphenylene sulfide or polyamide. Recently reported methods for corrosion inhibition are summarized, and their applicability is critically evaluated. The phosphorylation of magnetic particles inhibits corrosion but does not enable appropriate properties in harsh environments. The same applies to metallic coatings, which usually contain aluminum and zinc. Advanced epoxy adhesives are a promising solution, although some authors have reported inadequate corrosion resistance. The application of composite coatings seems like an appropriate solution, but the exact mechanisms are yet to be studied.

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Section: Scientific Literaturementioning

confidence: 99%