Interdiffusion across solid electrolyte-electrode interface

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Authors Jia-Mian Hu, Linyun Liang, Yanzhou Ji, Liang Hong, Kirk Gerdes, Long-Qing Chen
Journal/Conference Name Applied Physics Letters
Paper Category
Paper Abstract A phase-field model is developed for studying the cation interdiffusion across electrolyte-electrode interfaces in solid oxide fuel cell (SOFC) that can be contributing to long timescale performance degradation. Demonstrated on an interface between an 8%molY2O3-stabilized ZrO2 and a La0.65Sr0.3MnO3−x typically used in SOFC, time-dependent evolution of the cation interdiffusion profiles are predicted by linking the phase-field model to a diffusion equation. The simulated interdiffusion profiles agree with independent experimental data in both time and space domains at different temperatures.
Date of publication 2014
Code Programming Language Python
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