Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM

Abstract:

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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.

Info:

Periodical:

Defect and Diffusion Forum (Volumes 273-276)

Edited by:

Andreas Öchsner and Graeme E. Murch

Pages:

445-454

DOI:

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

Citation:

I. V. Belova et al., "Diffusion Kinetics Analysis of Cation Diffusion in YSZ and LSGM", Defect and Diffusion Forum, Vols. 273-276, pp. 445-454, 2008

Online since:

February 2008

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Price:

$35.00

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