High-temperature relaxor cobalt-doped (1−x)BiScO3-xPbTiO3 piezoelectric ceramics
High-temperature relaxor cobalt-doped (1−x)BiScO3-xPbTiO3 piezoelectric ceramics
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DOI：
10.1063/1.2904615
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发表时间：
2008-04
影响因子：
4
通讯作者：
Z. Yao;Hanxing Liu;Yang Liu;Zhaohui Wu;M. Cao;H. Hao
中科院分区：
文献类型：
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作者：
Z. Yao;Hanxing Liu;Yang Liu;Zhaohui Wu;M. Cao;H. Hao
通过常规固态合成制备了钴掺杂的（1-x）BiScO 3-xPbTiO 3压电陶瓷，其中从相结构测量在0.48 μ m × 0.53的组成范围内观察到准同型相界（MPB）区域。Co掺杂在0.50BiScO3-0.50PbTiO3陶瓷中由于阳离子无序导致弛豫铁电行为。发现在MPB附近x=0.50的复合物的铁电相变是一个位移和一级相变，具有优异的压电性能，Tm=470°C，d33= 282 pC scinN，Kp=0.49，预示着未来的高温压电应用。
Cobalt-doped (1−x)BiScO3-xPbTiO3 piezoelectric ceramics were fabricated by conventional solid state synthesis, in which a morphotropic phase boundary (MPB) region was observed in the compositional range of 0.48⩽x⩽0.53 from the phase structure measurement. Co doping in the 0.50BiScO3–0.50PbTiO3 ceramics resulted in a relaxor ferroelectric behavior due to cation disorder. The ferroelectric phase transition of the composition x=0.50 near the MPB was found to be a displacive and first-order transition with excellent piezoelectric properties, Tm=470°C, d33=282pC∕N, Kp=0.49, indicating a future high-temperature piezoelectric application.