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Interdiffusion across solid electrolyte-electrode interface
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DOI：10.1063/1.4879835.png)
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Abstract
En 中文
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% molY(2)O(3)-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. (C) 2014 AIP Publishing LLC.
Keywords:
PHASE-FIELD MODEL
OXYGEN-TRANSPORT
BINARY-ALLOYS
DIFFUSION
ZIRCONIA
MECHANISMS
EXCHANGE
KINETICS
SYSTEM
LAMNO3
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