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Bismuth strontium titanate-bismuth scandate-lead titanate series high-temperature piezoelectric ceramic material with high piezoelectric property and low loss and preparation method thereof
The invention belongs to the field of high-temperature piezoelectric ceramic materials, and particularly relates to a bismuth strontium titanate-bismuth scandate-lead titanate series high-temperature piezoelectric ceramic material with high piezoelectric property and low loss and a preparation method thereof. The general chemical formula of the piezoelectric ceramic material is x (Sr0. 7Bi0. 2) TiO3-(1-x-y) BiScO3-yPbTiO3-1mol% MnO2, wherein x is more than or equal to 0.01 and less than or equal to 0.04, and y is more than or equal to 0.62 and less than or equal to 0.64. The dielectric loss of the prepared ceramic material is greatly reduced in a range from room temperature to high temperature, high piezoelectric performance and high Curie temperature are maintained, the requirement of a high-temperature piezoelectric sensor on a piezoelectric functional element is met, the preparation process is simple, the sintering temperature is low, the cost is low, and the ceramic material is suitable for large-scale industrial production, and has wide application prospects in the aspects of high-temperature piezoelectric accelerometer sensing devices, high-temperature piezoelectric valves, high-temperature piezoelectric motor drivers, high-temperature piezoelectric energy collection and the like.
本发明属于高温压电陶瓷材料领域，具体涉及兼具高压电性能和低损耗的钛酸锶铋—钪酸铋—钛酸铅系高温压电陶瓷材料及其制备方法。该压电陶瓷材料的化学通式为x(Sr0.7Bi0.2)TiO3‑(1‑x‑y)BiScO3‑yPbTiO3‑1mol%MnO2，其中0.01≤x≤0.04，0.62≤y≤0.64。本发明制备的陶瓷材料的介电损耗在室温到高温范围内大幅度降低，还保持了高压电性能和高居里温度，满足高温压电传感器对压电功能元件的要求，制备工艺简单、烧结温度低、成本低、适宜于大规模的工业化生产，在高温压电加速度计传感器件、高温压电阀和高温压电马达驱动器、高温压电能量收集等方面具有广泛的应用前景。
Bismuth strontium titanate-bismuth scandate-lead titanate series high-temperature piezoelectric ceramic material with high piezoelectric property and low loss and preparation method thereof
The invention belongs to the field of high-temperature piezoelectric ceramic materials, and particularly relates to a bismuth strontium titanate-bismuth scandate-lead titanate series high-temperature piezoelectric ceramic material with high piezoelectric property and low loss and a preparation method thereof. The general chemical formula of the piezoelectric ceramic material is x (Sr0. 7Bi0. 2) TiO3-(1-x-y) BiScO3-yPbTiO3-1mol% MnO2, wherein x is more than or equal to 0.01 and less than or equal to 0.04, and y is more than or equal to 0.62 and less than or equal to 0.64. The dielectric loss of the prepared ceramic material is greatly reduced in a range from room temperature to high temperature, high piezoelectric performance and high Curie temperature are maintained, the requirement of a high-temperature piezoelectric sensor on a piezoelectric functional element is met, the preparation process is simple, the sintering temperature is low, the cost is low, and the ceramic material is suitable for large-scale industrial production, and has wide application prospects in the aspects of high-temperature piezoelectric accelerometer sensing devices, high-temperature piezoelectric valves, high-temperature piezoelectric motor drivers, high-temperature piezoelectric energy collection and the like.
本发明属于高温压电陶瓷材料领域，具体涉及兼具高压电性能和低损耗的钛酸锶铋—钪酸铋—钛酸铅系高温压电陶瓷材料及其制备方法。该压电陶瓷材料的化学通式为x(Sr0.7Bi0.2)TiO3‑(1‑x‑y)BiScO3‑yPbTiO3‑1mol%MnO2，其中0.01≤x≤0.04，0.62≤y≤0.64。本发明制备的陶瓷材料的介电损耗在室温到高温范围内大幅度降低，还保持了高压电性能和高居里温度，满足高温压电传感器对压电功能元件的要求，制备工艺简单、烧结温度低、成本低、适宜于大规模的工业化生产，在高温压电加速度计传感器件、高温压电阀和高温压电马达驱动器、高温压电能量收集等方面具有广泛的应用前景。
Bismuth strontium titanate-bismuth scandate-lead titanate series high-temperature piezoelectric ceramic material with high piezoelectric property and low loss and preparation method thereof
兼具高压电性能和低损耗的钛酸锶铋—钪酸铋—钛酸铅系高温压电陶瓷材料及其制备方法
YANG CHANGHONG (Autor:in) / HUANG SHIFENG (Autor:in) / GENG CHAOHUI (Autor:in) / FENG CHAO (Autor:in) / LIN XIUJUAN (Autor:in) / FAN MENGJIA (Autor:in) / FENG YUNYUN (Autor:in)
06.08.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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