Microstructure and Electrical Properties of Bi³⁺ Modified ZnO Ceramics

Abstract:

High-quality bismuth modified zinc oxide ceramics were obtained by conventional ceramic method. The phase analysis revealed pure hexagonal ZnO phase in all the samples. High relative density (above 95%), when compared with theoretical density of ZnO, was achieved by the Arquimides’ method. Non-linear coefficients, obtained from the J-E curves, shown an increase in their values as the bismuth content increases. Complex impedance analysis revealed an increase of the semicircle diameters with the increase of the bismuth content. The obtained results will be discussed within the framework of the current theoretical model proposed in the literature.

• Periodical: Key Engineering Materials (Volumes 434-435)
• Pages: 318-223
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.434-435.318
• Online since: March 2010
• Authors: J.D.S. Guerra, Y. Leyet, F. Guerrero, Y. Romaguera, J. Pérez, L. Aguilera
• Keywords: Electric Property, Impedance Spectroscopy

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