Electrochemical behaviour in synthetic saliva of silane coated Ni/Cu/Ni Nd‐Fe‐B magnet for dentistry applications. Issue 5 (8th December 2015)

• Record Type: Journal Article
• Authors: Calabrese, L.; Caprì, A.; Fabiano, F.; Bonaccorsi, L.; Borsellino, C.; Proverbio, E.
• Is Part Of: Materials and corrosion. Volume 67:Issue 5(2016:May)
• Page Start: 484
• Page End: 494
• Publication Date: 2015-12-08
• Subjects: EIS -- Nd‐Fe‐B Magnet -- orthodontic -- silane coating -- synthetic saliva solution; Materials -- Periodicals; Metals -- Periodicals; Corrosion and anti-corrosives -- Periodicals; 620.1122305
• DOI: 10.1002/maco.201508508
• Languages: English
• ISSNs: 0947-5117

Abstract

Abstract : In this work the electrochemical behaviour in synthetic saliva of silane coated Ni/Cu/Ni Nd‐Fe‐B magnets for dentistry applications was assessed. A protective multilayer of N‐propyl‐trimethoxy‐silane was deposited by dip‐coating onto Ni/Cu/Ni Nd‐Fe‐B magnets. The corrosion process of the silanised magnets was experimentally studied by polarization and electrochemical impedance spectroscopy tests performed at increasing immersion time in synthetic saliva solution. The Ni/Cu/Ni plated cover is not able to provide good barrier protection in this electrolytic media, while an additional three‐layer silane film guarantees better anti‐corrosion properties and durability in synthetic saliva solution.