Dielectric,ferroelectric, and piezoelectric properties of lead-free Ba0.95Ca0.05Ti1-xZrxO3 ceramics |
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| Authors: | Tossaporn Chullaphan Sumalin Phokha Prinya Chindaprasirt Pinit Kidkhunthod |
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| Affiliation: | 1. Department of Physics, Faculty of Science, Udon Thani Rajabhat University, Udon Thani, Thailand;2. Sustainable Infrastructure Research and Development Center, Department of Civil Engineering, Faculty of Engineer, Khon Kaen University, Khon Kaen, Thailand;3. Synchrotron Light Research Institute (Public Organization), NakhonRatchasima, Thailand |
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| Abstract: | AbstractBa0.95Ca0.05Ti1-xZrxO3 (BCTZO) ceramics were prepared by a solid state reaction method. The samples were characterized by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and X-ray absorption near edge structure (XANES). The ceramics exhibit a pure perovskite structure. The average grain size gradually decreases with increasing Zr concentration. XANES results indicate that the intensities of pre-edge peaks dropped with increasing Zr concentration. The BCTZO ceramic of x?=?0.05 has the optimum electrical properties with the maximum dielectric constant (ε'm), remanent polarization (2Pr), coercive electric field (2Ec) and piezoelectric charge constant (d33) of 7,244, 12.54 (μC/cm2), 5.29 (kV/cm) and 288 (pC/N), respectively. |
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| Keywords: | Ba0 95Ca0 05Ti1-xZrxO3 XANES ferroelectric piezoelectric |
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