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Lead metaniobate-based piezoelectric ceramic material with high Curie temperature and high stability and preparation method of lead metaniobate-based piezoelectric ceramic material
*The invention discloses a lead metaniobate-based piezoelectric ceramic material with high Curie temperature and high stability and a preparation method thereof, the lead metaniobate-based piezoelectric ceramic material is characterized in that the material composition is represented by a general formula Pb (1 + delta-x-y) BaxCay [Nb (1-z) Mnz] 206, x, y and z in the formula represent the mole numbers of composition elements, delta represents the excessive mole number of A-site Pb, 0 < = x < = 0.1, 0 < = y < = 0.1, 0 < = x + y < = 0.1, 0 < = z < = 0.1, and 0 < = delta < = 0.05. The preparation method comprises the process steps of material mixing, pre-sintering, granulation, molding and plastic removal, sintering, silver coating and polarization. The variable-temperature piezoelectric strain coefficient d * 33 of the lead metaniobate-based piezoelectric ceramic prepared by the invention is at least 75 pC/N or above within the temperature range of room temperature to 350 DEG C, preferably 80 pC/N or above, and the lead metaniobate-based piezoelectric ceramic shows a good application prospect in high-temperature operating environments such as high-end sound wave petroleum logging and the like.
本发明公开了一种高居里温度高稳定性偏铌酸铅基压电陶瓷材料及其制备方法，偏铌酸铅基压电陶瓷，用通式Pb(1+δ‑x‑y)BaxCay[Nb(1‑z)Mnz]206表示材料组成，式中x、y、z表示组成元素的摩尔数，δ表示A位Pb过量的摩尔数，其中，0≤x≤0.1,0≤y≤0.1,0≤x+y≤0.1,0≤z≤0.1,0≤δ≤0.05。其制备方法包括混料、预烧、造粒、成型及排塑、烧结、被银、极化工艺步骤。本发明制备的偏铌酸铅基压电陶瓷其变温压电应变系数d*33在室温～350℃温度范围内至少为75pC/N以上，优选为80pC/N以上，在高端声波石油测井等高温作业环境，显示出良好的应用前景。
Lead metaniobate-based piezoelectric ceramic material with high Curie temperature and high stability and preparation method of lead metaniobate-based piezoelectric ceramic material
*The invention discloses a lead metaniobate-based piezoelectric ceramic material with high Curie temperature and high stability and a preparation method thereof, the lead metaniobate-based piezoelectric ceramic material is characterized in that the material composition is represented by a general formula Pb (1 + delta-x-y) BaxCay [Nb (1-z) Mnz] 206, x, y and z in the formula represent the mole numbers of composition elements, delta represents the excessive mole number of A-site Pb, 0 < = x < = 0.1, 0 < = y < = 0.1, 0 < = x + y < = 0.1, 0 < = z < = 0.1, and 0 < = delta < = 0.05. The preparation method comprises the process steps of material mixing, pre-sintering, granulation, molding and plastic removal, sintering, silver coating and polarization. The variable-temperature piezoelectric strain coefficient d * 33 of the lead metaniobate-based piezoelectric ceramic prepared by the invention is at least 75 pC/N or above within the temperature range of room temperature to 350 DEG C, preferably 80 pC/N or above, and the lead metaniobate-based piezoelectric ceramic shows a good application prospect in high-temperature operating environments such as high-end sound wave petroleum logging and the like.
本发明公开了一种高居里温度高稳定性偏铌酸铅基压电陶瓷材料及其制备方法，偏铌酸铅基压电陶瓷，用通式Pb(1+δ‑x‑y)BaxCay[Nb(1‑z)Mnz]206表示材料组成，式中x、y、z表示组成元素的摩尔数，δ表示A位Pb过量的摩尔数，其中，0≤x≤0.1,0≤y≤0.1,0≤x+y≤0.1,0≤z≤0.1,0≤δ≤0.05。其制备方法包括混料、预烧、造粒、成型及排塑、烧结、被银、极化工艺步骤。本发明制备的偏铌酸铅基压电陶瓷其变温压电应变系数d*33在室温～350℃温度范围内至少为75pC/N以上，优选为80pC/N以上，在高端声波石油测井等高温作业环境，显示出良好的应用前景。
Lead metaniobate-based piezoelectric ceramic material with high Curie temperature and high stability and preparation method of lead metaniobate-based piezoelectric ceramic material
一种高居里温度高稳定性偏铌酸铅基压电陶瓷材料及其制备方法
WANG YUEQUN (Autor:in) / GAI XUEZHOU (Autor:in) / LI WEI (Autor:in) / WU FAN (Autor:in)
29.07.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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