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Lanthanum-doped scandium lead tantalate and lead titanate piezoelectric ceramic as well as preparation method and application thereof
The invention discloses lanthanum-doped scandium lead tantalate and lead titanate piezoelectric ceramic and a preparation method and application thereof, and belongs to the technical field of piezoelectric ceramic preparation, the piezoelectric ceramic is prepared by a solid-phase reaction method, the chemical composition of the piezoelectric ceramic is yLa-(1-x) Pb (Sc1/2Ta1/2) O3-xPbTiO3 (xLa-PST-PT), x is more than or equal to 0.3 and less than or equal to 0.5, and y is more than or equal to 0 and less than or equal to 0.02. The La-PST-PT piezoelectric ceramic prepared by the invention can effectively solve the key technical problem of preparation of a high-performance piezoelectric device, namely, the La-PST-PT piezoelectric ceramic can meet several performance indexes of high piezoelectric coefficient, high electromechanical coupling coefficient, large strain response, low strain lag and high temperature stability; and the problem of high sintering temperature of ceramic containing Sc and Ta elements is improved, so that the La-PST-PT piezoelectric ceramic disclosed by the invention is a promising candidate material in development of high-performance piezoelectric devices.
本发明公开了一种镧掺杂钪钽酸铅钛酸铅压电陶瓷及其制备方法和应用，属于压电陶瓷制备技术领域，该压电陶瓷采用固相反应法制备而成，化学组成为yLa‑(1‑x)Pb(Sc1/2Ta1/2)O3‑xPbTiO3(xLa‑PST‑PT)，0.3≤x≤0.5,0≤y≤0.02。本发明所制备的La‑PST‑PT压电陶瓷可以有效解决高性能压电器件制备的关键技术问题，即能够满足高的压电系数和高的机电耦合系数、大的应变响应和低的应变滞后以及具备高的温度稳定性的几种性能指标，并且改善了含Sc和Ta元素陶瓷烧结温度高的问题，因此本发明的La‑PST‑PT压电陶瓷在高性能压电器件开发上是一种非常有前途的候选材料。
Lanthanum-doped scandium lead tantalate and lead titanate piezoelectric ceramic as well as preparation method and application thereof
The invention discloses lanthanum-doped scandium lead tantalate and lead titanate piezoelectric ceramic and a preparation method and application thereof, and belongs to the technical field of piezoelectric ceramic preparation, the piezoelectric ceramic is prepared by a solid-phase reaction method, the chemical composition of the piezoelectric ceramic is yLa-(1-x) Pb (Sc1/2Ta1/2) O3-xPbTiO3 (xLa-PST-PT), x is more than or equal to 0.3 and less than or equal to 0.5, and y is more than or equal to 0 and less than or equal to 0.02. The La-PST-PT piezoelectric ceramic prepared by the invention can effectively solve the key technical problem of preparation of a high-performance piezoelectric device, namely, the La-PST-PT piezoelectric ceramic can meet several performance indexes of high piezoelectric coefficient, high electromechanical coupling coefficient, large strain response, low strain lag and high temperature stability; and the problem of high sintering temperature of ceramic containing Sc and Ta elements is improved, so that the La-PST-PT piezoelectric ceramic disclosed by the invention is a promising candidate material in development of high-performance piezoelectric devices.
本发明公开了一种镧掺杂钪钽酸铅钛酸铅压电陶瓷及其制备方法和应用，属于压电陶瓷制备技术领域，该压电陶瓷采用固相反应法制备而成，化学组成为yLa‑(1‑x)Pb(Sc1/2Ta1/2)O3‑xPbTiO3(xLa‑PST‑PT)，0.3≤x≤0.5,0≤y≤0.02。本发明所制备的La‑PST‑PT压电陶瓷可以有效解决高性能压电器件制备的关键技术问题，即能够满足高的压电系数和高的机电耦合系数、大的应变响应和低的应变滞后以及具备高的温度稳定性的几种性能指标，并且改善了含Sc和Ta元素陶瓷烧结温度高的问题，因此本发明的La‑PST‑PT压电陶瓷在高性能压电器件开发上是一种非常有前途的候选材料。
Lanthanum-doped scandium lead tantalate and lead titanate piezoelectric ceramic as well as preparation method and application thereof
一种镧掺杂钪钽酸铅钛酸铅压电陶瓷及其制备方法和应用
WANG LINGHANG (author) / JIA HONGRUI (author) / LI ZHEN (author)
2023-01-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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