Abstract
Excessive Sr-doping has been observed to lead to a deterioration in the piezoelectric properties of BT-based ceramics. In response to this issue, this study introduces a solution through the development of lead-free piezoceramics using the composition (1-2x)Ba0.86Sr0.14Ti0.90Sn0.10O3-2xBa0.86Ca0.14Ti0.90Sn0.10O3 (BSTS-xBCTS), prepared through the conventional solid-state method. The rhombohedral, orthorhombic, and tetragonal phase coexistence is determined in the ceramic with 0.2≤x≤0.04. with x=0.3, the BSTS-xBCTS ceramic shows a sizeable piezoelectric property (d 33∼ 540 pC/N) and high ε r value (∼ 10280), superior or comparable to the other BT-based or lead-based ceramics. These results demonstrate that the electrical property of the BSTS-xBCTS ceramic exceeds those of some lead-based ceramics or equivalent and holds significant potential in various technological applications that require electrical materials.
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