High phase transition temperatures and piezoelectric properties in PIN-PSN-PT ternary ceramics with MPB compositions

Ternary ceramics, xPb(In1/2Nb1/2)O-3-yPb(Sc1/2Nb1/2)O-3-zPbTiO(3) (PIN-PSN-PT) ceramics with morphotropic phase boundary (MPB) compositions, were prepared by using the conventional ceramics sintering process. Phase structure, dielectric, piezoelectric and electromechanical properties of PIN-PSN-PT ceramics were investigated in detail. The single phase with perovskite structure and MPB compositions could be confirmed in PIN-PSN-PT ceramics by X-ray diffraction analysis. High Tr-t (90-110 degrees C), T-c (296-306 degrees C) and d(33) (530-550 pC/N) could be maintained at the same time in PIN-PSN-PT ceramics, together with high k(p) (similar to 0.67) and excellent thermal stability of piezoelectric properties. Meanwhile, the remnant polarization P-r and coercive field E-c of PIN-PSN-PT ceramics were obtained to be approximate 40 mu C/cm(2) and 10 kV/cm, respectively. These results indicate the present ceramics are the promising piezoelectric materials for high temperature and high-power piezoelectric device applications.

Automated summary

Ternary ceramics PIN-PSN-PT with morphotropic phase boundary compositions were prepared and their phase structure, dielectric, piezoelectric, and electromechanical properties were investigated. X-ray diffraction analysis confirmed the perovskite structure and MPB compositions in PIN-PSN-PT ceramics. The ceramics exhibited high Tr-t (90-110℃), T-c (296-306℃), and d(33) (530-550 pC/N), as well as high k(p) (approximately 0.67) and excellent thermal stability of piezoelectric properties. Moreover, the ceramics showed a remnant polarization P-r of around 40 mu C/cm(2) and a coercive field E-c of approximately 10 kV/cm. These results suggest that the present ceramics are promising as piezoelectric materials for high-temperature and high-power piezoelectric device applications.