diener electronic : Surface oxide


	Surface oxide The surface of most metals is covered by a thin oxide layer spontaneously forming in an atmosphere containing oxygen and mostly retarding or even preventing the further oxidation of the underlying metal. Therefore, several base metals are very stable (e. g. chromium) or rather stable (e. g. aluminium) against corrosion. Strengthening of the oxide layer can be used to improve oxidation stability in several cases. The surface oxides of virtually any metal can be removed by plasma, thereby laying the metal bare.

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