Abstract:A study has been made of permalloy (iron-nickel) contacts of reed switches before and after ion-induced surface modification using atomic force and optical microscopy, Auger electron and X-ray photoelectron spectroscopy. It has been found that the formation of surface nitride layers enhances corrosion and erosion resistance of contacts. We proposed to produce such layers directly into sealed reed switches by means of pulsing glow-discharge nitrogen plasma.
By the methods of Auger-electron spectroscopy, atomic-force and optical microscopy there had been studied ironnickel contact surfaces of reed switches after ion-induced modification. It was shown that corrosion and erosion resistance of modified contacts is connected with the peculiarities of topography of the surface and formation of nitride layers. There was given experimental justification of possibility of making of reed switches with modified contact surface instead of electroplating from precious metals.
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