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Fractional electrical model for modified bismuth oxide |
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| Authors: | Dorota Nowak-Wo?ny Tomasz Janiczek Witold Mielcarek Juliusz B Gajewski |
| Institution: | 1. Department of Electrostatics and Electrothermal Engineering, Institute of Heat Engineering and Fluid Mechanics, Wroc?aw University of Technology, 50-372 Wroc?aw, Poland;2. Institute of Computer Engineering, Control and Robotics, Wroc?aw University of Technology, 50-372 Wroc?aw, Poland;3. Electrotechnical Institute, 50-369 Wroc?aw, Poland |
| Abstract: | Modified bismuth oxide (Bi2O3) is of great importance to fuel cells and oxide varistors. The electrical parameters of Bi2O3 vary with its modifying components as well as with its aging temperature. This paper presents an analysis of impedance test results carried out to find an equivalent electric model and the relationship between the model's elements to various additives used to modify Bi2O3 and to changes in aging temperature. The proposed model was tested via computer simulation and the model parameters correlated to individual modifiers. |
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