Evolution of microstructure and impedance upon the sintering of a Bi–Pr–V-based fluorite-type oxide conductor

Samples of Bi 0.85Pr 0.105V 0.045O 1.545, a fluorite-type oxide conductor, with varying porosities and different average grain sizes determined by the sintering temperature (500–900 °C), were investigated using scanning electron microscopy (SEM) and impedance spectroscopy. Sintering treatment leads...

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Bibliographic Details
Published in:Solid state ionics 2002, Vol.146 (1), p.175-184
Main Authors: Benkaddour, M, Conflant, P, Drache, M, Steil, M.C
Format: Article
Language:English
Subjects:
Bismuth-based mixed oxide
Condensed matter: structure, mechanical and thermal properties
Diffusion in solids
Electrical properties
Exact sciences and technology
Impedance spectroscopy
Microstructure
Physics
Self-diffusion and ionic conduction in nonmetals
Sintering
Transport properties of condensed matter (nonelectronic)
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Summary:Samples of Bi 0.85Pr 0.105V 0.045O 1.545, a fluorite-type oxide conductor, with varying porosities and different average grain sizes determined by the sintering temperature (500–900 °C), were investigated using scanning electron microscopy (SEM) and impedance spectroscopy. Sintering treatment leads to increased density of ceramic materials between 500 and 800 °C and predominantly to grain growth at higher temperatures, in dense samples (porosity
ISSN:0167-2738
1872-7689
DOI:10.1016/S0167-2738(01)00998-5