Pyroelectric properties in three phases coexistence Pb[(Mn0.33Nb0.67)0.5(Mn0.33Sb0.67)0.5]0.08(ZrxTi1−x)0.92O3 lead ceramics |
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| Authors: | Guangzu Zhang Shenglin Jiang Yangyang Zhang Tiantian Xie |
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| Affiliation: | aEngineering Research Centre for Functional Ceramics MOE, Department of Electronic Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China |
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| Abstract: | The bulk dense Pb[(Mn0.33Nb0.67)0.5(Mn0.33Sb0.67)0.5]0.08(ZrxTi1−x)0.92O3 pyroelectric ceramics have been successfully prepared by the conventional solid method. The effect of three phases coexistence in the ceramics is studied. When x = 0.95 and 0.85 in the ceramics, the maximum pyroelectric coefficient peaks appear at 23 °C and 45 °C, and the maximum values are 26.5 × 10−4 C/m2 °C and 25.5 × 10−4 C/m2 °C, respectively. The maximum pyroelectric coefficient appears large while the peaks widths are small. When the two kinds of ceramic powders mixed with the mol ratio of 2:1, the pyroelectric coefficient of the ceramics is above 10.0 × 10−4 C/m2 °C in a broad temperature range from 20 °C to 55 °C. The possible physical mechanism of the temperature broadened phenomenon is briefly discussed. |
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| Keywords: | Pyroelectric properties Dielectric properties Three phases coexistence |
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