Nd-Fe-B permanent magnets are characterized by excellent magnetic properties. However, their applications are limited being extremely vulnerable to the attack of both climate and corrosive environments. This paper describes how, at different thicknesses of N-propyl-trimetoxy-silane, the coating affects the magnetic force of nickel plated magnets. We also investigate if the corrosion resistance of silanized Nd-Fe-B magnets increases in mildly corrosive environments by immersing them in a synthetic saliva solution. It was found that the silanization treatment does not affect the strength of the magnetic force and provide an enhancement of the corrosion resistance of the substrate.
Assessment of corrosion resistance of Nd-Fe-B magnets by silanization for orthodontic applications
FABIANO, FRANCESCA;GIORDANO, ANNA;BORSELLINO, Chiara;CALABRESE, Luigi;CORDASCO, Giancarlo;MATARESE, Giovanni;FABIANO, Valerio;AZZERBONI, Bruno
2014-01-01
Abstract
Nd-Fe-B permanent magnets are characterized by excellent magnetic properties. However, their applications are limited being extremely vulnerable to the attack of both climate and corrosive environments. This paper describes how, at different thicknesses of N-propyl-trimetoxy-silane, the coating affects the magnetic force of nickel plated magnets. We also investigate if the corrosion resistance of silanized Nd-Fe-B magnets increases in mildly corrosive environments by immersing them in a synthetic saliva solution. It was found that the silanization treatment does not affect the strength of the magnetic force and provide an enhancement of the corrosion resistance of the substrate.Pubblicazioni consigliate
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