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dc.contributor.authorSuwapitcha Bunthamen_US
dc.contributor.authorPaitoon Boonsongen_US
dc.contributor.authorPanupong Jaibanen_US
dc.contributor.authorNittaya Keawpraken_US
dc.contributor.authorAnucha Watcharapasornen_US
dc.description.abstractCo-doped (Bi0.5Na0.5)TiO3 ceramics with varied doping concentration of 0, 0.005, 0.01, 0.02 and 0.03 mol fraction were prepared by conventional solid state reaction method. The firing condition used was 1050 ฐC for 2 h. X-ray diffraction results showed that all produced ceramics were single phase with a rhombohedral perovskite structure. Due to the replacement of Ti4+ions with Co2+ at B-site, there was a slight shift of X-ray diffraction pattern to the left. SEM micrographs of the ceramics indicated that a small amount of Co addition could eliminate pores and improved densification. However, above 0.01 Co mol fraction, excessive grain growth occurred and large pores were again observed. The dielectric constant and piezoelectric coefficient reached maximum values of 670 and 105 pC/N, respectively, in the sample doped with 0.01 Co mol fraction. Ferroelectric characteristics were also found to increase with increasing dopant concentration.en_US
dc.publisherScience Faculty of Chiang Mai Universityen_US
dc.titleEffects of Cobalt Dopant on Microstructure and Electrical Properties of Bi0.5Na0.5TiO3 Ceramicsen_US
article.title.sourcetitleChiang Mai Journal of Scienceen_US
article.volume45en_US of Physics and Materials Science, Faculty of Science, Chiang Mai University,Chiang Mai 50200, Thailand. Chiang Mai 50200, Thailand.en_US School, Chiang Mai University, Chiang Mai 50200, Thailanden_US Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200 Thailand. Thailand.en_US of Science, Energy and Environment, King Mongkut’s University of Technology North Bangkok, Rayong Campus, Rayong, 21120, Thailand. Rayong Campus, Rayong, 21120, Thailand.en_US Institute of Scientific and Technological Research (TISTR), Klong Ha, KlongLuang, Pathum Thani,12120, Thailand. 12120, Thailand.en_US
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