A study of oxidized Nb–Al alloys using Auger electron spectroscopy and photoemission spectroscopy

1 September 1985

journal article
Published by American Vacuum Society in Journal of Vacuum Science & Technology A

Vol. 3 (5) , 1982-1987
https://doi.org/10.1116/1.572911

Abstract

The oxidation properties of Nb–Al alloys have been studied using Auger electron spectroscopy and x-ray photoelectron spectroscopy. Al in the alloy is found to be preferentially sputtered during argon-ion bombardment and to be preferentially oxidized in Nb–Al alloys. Oxidation increases the Al concentration in the oxide layer, which is seen even in the initial stages of oxidation with photoemission spectroscopy using synchrotron radiation. Auger peak shifts of 5×1011 L oxygen-exposed surfaces of Al, Nb, and Nb–Al alloys are found to be due to Auger transitions involving chemically shifted core levels caused by an alloying effect.

Keywords

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