journal article·2015-05

The kinetics and interface microstructure evolution in the internal oxidation of Ag–3at.%Sn alloy

Canhui Xu, Danqing Yi, Yong Jiang, Chunping Wu, Haibin Zhang, Shuming Peng

Corrosion Science· Volume 94
Publisher page

Abstract

Abstract Based on theoretical analysis of internal oxidation kinetics, the local oxygen partial pressure within the internal oxidized Ag–3at.%Sn alloy was derived as a function of the ambient oxidization parameters firstly. Further combined with the interface structure stability diagram, the evolution of Ag/SnO2 interface structures in internal oxidization of Ag–3at.%Sn alloy has been quantitatively clarified. The prediction results indicates that the stoichiometric Ag/SnO2 interface dominates in internal oxidation of Ag–3at.%Sn alloy in air atmosphere at 973 K, while a gradient structures with both O-rich and stoichiometric interface were formed at the condition of 3 atm pure oxygen atmosphere at 873 K.
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Research context

OpenAlex topics: ZnO doping and properties · High-Temperature Coating Behaviors · Catalytic Processes in Materials Science

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