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Effect of Zr/Ti ratio on the dielectric and piezoelectric properties of Mn-doped Ba(Zr,Ti)O3 ceramics |
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| Authors: | N. Ding X. G. Tang X. D. Ding Q. X. Liu Y. P. Jiang L. L. Jiang |
| Affiliation: | 1. School of Physics and Optoelectric Engineering, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, People’s Republic of China 2. School of Physics and Engineering, Sun Yat-Sen (Zhongshan) University, 135 Xingang West Road, Guangzhou, 510275, People’s Republic of China 3. Laboratory Teaching Center, Guangdong University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, 510006, People’s Republic of China |
| Abstract: | Lead-free piezoelectric Ba(Zr y Ti1?y )O3:0.5 mol%Mn (abbreviated as BZTM-100y, y = 0.04, 0.045, 0.05, and 0.055) ceramics were prepared via the conventional solid-state reaction method. The cubic to tetragonal phase transition temperature (T c ) shifts to lower temperature with increasing Zr concentration, and the transition temperature from tetragonal to orthorhombic (T o?t ) which is a shift to higher temperature from 26 to 47 °C with increasing y value from 0.04 to 0.055. And a small amount of Mn can improve effectively the electrical properties, especially the piezoelectric properties of the BZT ceramics. Compared to the pure BZT ceramics, the Mn-doped BZTM ceramic shows an excellent piezoelectric coefficient d 33 as 213 pC/N. |
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