Fabrication of an Electrically-Resistive, Varistor-Polymer Composite
Abstract
:1. Introduction
- Those that participate in the formation of the basic microstructure of ZnO varistors in sintering provide for the formation of inter-granular layers; Bi2O3 is one such dopant.
- Those used in ensuring the non-linearity of the varistor ceramic promote the creation of deep charge carrier traps and cause the formation of the surface potential of the grains; Co3O4 and MnO are such dopants.
- Those that stabilize inter-granular layers under electrical loads and external environmental factors (temperature and humidity) and increase the stability of the electrical characteristics and reliability of the varistors; Sb2O3 is one such dopant [29].
2. Results and Discussion
2.1. X-ray Diffraction
2.2. Electron Microscopic Analysis
2.3. Electrical Measurement
3. Experimental Section
3.1. Materials
3.2. Preparation ZnO Based Nano-Sized Varistor Powder
3.3. Fabrication of Varistor Polymer Nanocomposite
3.4. Characterization
4. Conclusions
Acknowledgments
References
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Ingredients | Varistor nanocomposite | Varistor nano-sized powder |
---|---|---|
2θ (degree) | 2θ (degree) | |
Bismuth Zinc Oxide | 39.51, 45.17, 48.99, 62.91, 77.01 | 39.55, 63.01, 65.71, 72.73 |
Zinc Cobalt Oxide | 49.11, 59.29, 77.08 | 48.99, 62.91, 74.14 |
Zinc Manganese Oxide | 30.34, 43.69, 62.91 | 38.85, 56.73, 60.86, 68.08, 69.21 |
Composition | PCL/20 wt% filler | PCL/50 wt% filler | PCL/70 wt% filler | Pure PCL |
---|---|---|---|---|
Alpha | 1.71 | 2.21 | 3.57 | 1.11 |
© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
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Ahmad, M.B.; Fatehi, A.; Zakaria, A.; Mahmud, S.; Mohammadi, S.A. Fabrication of an Electrically-Resistive, Varistor-Polymer Composite. Int. J. Mol. Sci. 2012, 13, 15640-15652. https://doi.org/10.3390/ijms131215640
Ahmad MB, Fatehi A, Zakaria A, Mahmud S, Mohammadi SA. Fabrication of an Electrically-Resistive, Varistor-Polymer Composite. International Journal of Molecular Sciences. 2012; 13(12):15640-15652. https://doi.org/10.3390/ijms131215640
Chicago/Turabian StyleAhmad, Mansor Bin, Asma Fatehi, Azmi Zakaria, Shahrom Mahmud, and Sanaz A. Mohammadi. 2012. "Fabrication of an Electrically-Resistive, Varistor-Polymer Composite" International Journal of Molecular Sciences 13, no. 12: 15640-15652. https://doi.org/10.3390/ijms131215640