Tarnishing of Nickel in Air at Temperatures from 23° to 200°C and Relative Humidities from Ambient to 95%
- 1 October 1977
- journal article
- Published by The Electrochemical Society in Journal of the Electrochemical Society
- Vol. 124 (10) , 1588-1592
- https://doi.org/10.1149/1.2133115
Abstract
The tarnishing of nickel in air has been investigated at temperatures from 23° to 200°C and relative humidities from ambient to 95%. Auger electron spectroscopy with argon ion sputtering was used to determine the composition and the thickness of the oxide films. The films formed under all conditions have the same composition. Their thicknesses range from <1 nm at low relative humidities at all temperatures to about 3 nm at high relative humidities. We present a hypothesis that can account for the thicker films at high humidities.Keywords
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