Piezoelectric activities and domain patterns of orthorhombic Ba(Zr,Ti)O3 ceramics |
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| Authors: | P Zheng KX Song HB Qin L Zheng LM Zheng |
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| Institution: | 1. College of Electronics and Information, Hangzhou Dianzi University, High School Campus, Xiasha, Hangzhou 310018, China;2. Condensed Matter Science and Technology Institute, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Ba(ZrxTi1?x)O3 (0.025 ≤ x ≤ 0.065) ceramics were prepared by conventional solid-state reaction method. Crystalline structures were analyzed by X-ray diffraction. It was shown that all the Ba(ZrxTi1?x)O3 (0.025 ≤ x ≤ 0.065) ceramics were of orthorhombic phase at room temperature. Piezoelectric activities and domain patterns were investigated and compared with those of BaTiO3 ceramic. All the Ba(ZrxTi1?x)O3 ceramics showed nearly the same d33 values of about 265 pC/N and the same domain width of about 220 nm. By comparing the grain sizes and domain width of the Ba(ZrxTi1?x)O3 ceramics with those of BaTiO3 ceramic, it is speculated that the variation of domain width with grain sizes in orthorhombic Ba(ZrxTi1?x)O3 ceramics may be different with that in tetragonal BaTiO3 ceramic. Besides domain width, the effective inertia mass of domain wall is also considered to be a very important factor that impacts the piezoelectric activities of the Ba(ZrxTi1?x)O3 ceramics. |
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| Keywords: | Ceramic Domain patterns Piezoelectric activities |
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