Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM

Irina V. Belova; Graeme E. Murch; D. Samuelis; Manfred Martin

doi:10.4028/www.scientific.net/DDF.273-276.445

Paper Titles

Mass Transfer Analysis during Osmotic Dehydration of Eggplant Using Binary Solutions of Sucrose and Sodium Chloride
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Cross Interdiffusion Coefficients in Nickel- and Iron-Based Ternary Alloys
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Exploration of the Transition from Harrison Type-A Kinetics to Type-B Kinetics Regimes in Grain Boundary Diffusion
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Visualization of the Vacancy-Wind Effect Occurring in Chemical Diffusion and Ionic Conductivity in Solids
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Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM
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Theoretical Studies of Diffusion Kinetics in Austenite
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Finite Element Modelling of Oxygen Diffusion and Segregation at Interfaces in Ag-MgO Composites: Parametric Studies
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Interfacial Reactions during the Dissolution of Titanium in Liquid Iron
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Parametric Analyses of the TROI Experimental Results by Using the TEXAS-V Code
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Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM

Abstract:

In this paper, we discuss different possible cation diffusion mechanisms in YSZ and LSGM. Monte Carlo simulations are also reported of tracer diffusivities in LSGM for a postulated cluster mechanism. These simulations extend earlier simulations on un-doped material. The limits of the ratio of the diffusivities are consistent with experimental tracer diffusion findings over a wide range of cation-vacancy exchange frequencies. We also develop relationships between the phenomenological coefficients and use these relationships to predict possible demixing and interdiffusion experimental outcomes.