Abstract
The oxidation of several single-phase Pb-In alloys has been studied in air at room temperature using AES (Auger electron spectroscopy) combined with sputter-depth profiling. Alloy samples with indium composition between 3 and 64 at.% In, which were prepared using a microtome, were oxidized in air. The oxidation of alloys with low In contents was found to be the same as that of Pb-2.9 at.% Sn.1 Increasing the bulk composition of In increased the ratio of oxidized In to oxidized Pb in the oxide mixture, although Pb oxide was observed even on the surface of the oxide for samples up to 64 at.% In. The oxidation behavior of Pb-In alloys can be explained in terms of preferential oxidation of In due to its much greater affinity for oxygen than Pb.
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Zhang, M.X., Chang, Y.A. & Marcotte, V.C. Oxidation of single-phase Pb-In alloys. Oxid Met 33, 301–308 (1990). https://doi.org/10.1007/BF00667419
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DOI: https://doi.org/10.1007/BF00667419