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Equivalent Model of Modified Bismuth Oxides Described by Fractional Derivatives

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Abstract:

Metal oxide modified Bi2O3 finds the application in metal oxide varistors and as ionic conductors. Electrical properties of MeO-modified Bi2O3 change with MeO modifier and sintering temperature. In this paper we report how to predict Bi2O3 electrical properties using simulation model. Measurements of the electrical response of the modified Bi2O3 oxides were carried out using the impedance spectroscopic technique. As a result an equivalent model of electrical behaviour of modified Bi2O3, described by fractional derivates was proposed. To test the model, the series of simulation were run on computer, and after subjecting the results to verification the equivalent parameters of electrical circuit were determined. Model was elaborated with the view of facilitating the research on metal oxide ionic conductors and varistors.

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Periodical:

Key Engineering Materials (Volumes 336-338)

Pages:

676-679

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.676

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Online since:

April 2007

Authors:

Tomasz Janiczek, Dorota Nowak, Witold Mielcarek, Krystyna Prociów

Keywords:

Bismuth Oxide, Fractional Derivative, Fractional Element, Ionic Conductor

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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References

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