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High-performance lead zirconate titanate-based piezoelectric ceramic and preparation method thereof
The invention relates to a high-performance lead zirconate titanate-based piezoelectric ceramic and a preparation method thereof, in particular to a method for preparing MnCO3-doped (Pb < 0.92 > Sr < 0.08 >) (Zr < 0.533 > Ti < 0.443 > Nb < 0.024 >) O < 3 > (PSZTN-xMn) piezoelectric ceramics with different mass fractions through a solid-phase sintering process, and belongs to the field of functional ceramics. The MnCO3-doped PSZTN-xMn piezoelectric ceramics with different mass fractions are prepared through a solid-phase sintering process, it is found that in a certain doping range, Mn ions promote growth of crystal grains in the PSZTN piezoelectric ceramics, a remarkable hardening effect is generated, only slight loss of piezoelectric response exists, and therefore the piezoelectric response of the PSZTN piezoelectric ceramics is greatly improved. Finally, the performance combination of high d33 and high Qm is realized in a large-grain PSZTN ceramic sample with the MnCO3 doping amount of 0.4-0.5 wt.%: d33 is equal to 510-460 pC/N, Qm is equal to 614-750, kp is equal to 0.63-0.59, tan delta is equal to 0.002-0.004, and Tc is equal to 278 DEG C. According to the work, the breakthrough of the comprehensive performance of the PZT-based piezoelectric ceramics is successfully realized, it is proved that the method for cooperatively optimizing the comprehensive performance of the piezoelectric ceramics through grain size regulation and control is an effective strategy, and a simple and effective method is provided for optimizing the performance of other types of piezoelectric ceramics.
本发明涉及高性能锆钛酸铅基压电陶瓷及其制备方法，具体涉及通过固相烧结工艺制备不同质量分数MnCO3掺杂的(Pb0.92Sr0.08)(Zr0.533Ti0.443Nb0.024)O3(PSZTN‑xMn)压电陶瓷的方法，属功能陶瓷领域。通过固相烧结工艺制备了不同质量分数MnCO3掺杂的PSZTN‑xMn压电陶瓷，发现在一定掺杂范围内，Mn离子促进了PSZTN压电陶瓷中晶粒的生长，并且产生了显著的硬化效应，而压电响应仅有轻微损失，最终在MnCO3掺杂量为0.4～0.5wt.％的大晶粒PSZTN陶瓷样品中实现了高d33和高Qm的性能组合：d33＝510～460pC/N，Qm＝614～750，kp＝0.63～0.59，tanδ＝0.002～0.004，Tc＝278℃。该工作成功实现了PZT基压电陶瓷综合性能的突破，证明了通过晶粒尺寸调控来协同优化压电陶瓷综合性能是一种行之有效的策略，为优化其他种类压电陶瓷的性能提供了一个简单有效的方法。
High-performance lead zirconate titanate-based piezoelectric ceramic and preparation method thereof
The invention relates to a high-performance lead zirconate titanate-based piezoelectric ceramic and a preparation method thereof, in particular to a method for preparing MnCO3-doped (Pb < 0.92 > Sr < 0.08 >) (Zr < 0.533 > Ti < 0.443 > Nb < 0.024 >) O < 3 > (PSZTN-xMn) piezoelectric ceramics with different mass fractions through a solid-phase sintering process, and belongs to the field of functional ceramics. The MnCO3-doped PSZTN-xMn piezoelectric ceramics with different mass fractions are prepared through a solid-phase sintering process, it is found that in a certain doping range, Mn ions promote growth of crystal grains in the PSZTN piezoelectric ceramics, a remarkable hardening effect is generated, only slight loss of piezoelectric response exists, and therefore the piezoelectric response of the PSZTN piezoelectric ceramics is greatly improved. Finally, the performance combination of high d33 and high Qm is realized in a large-grain PSZTN ceramic sample with the MnCO3 doping amount of 0.4-0.5 wt.%: d33 is equal to 510-460 pC/N, Qm is equal to 614-750, kp is equal to 0.63-0.59, tan delta is equal to 0.002-0.004, and Tc is equal to 278 DEG C. According to the work, the breakthrough of the comprehensive performance of the PZT-based piezoelectric ceramics is successfully realized, it is proved that the method for cooperatively optimizing the comprehensive performance of the piezoelectric ceramics through grain size regulation and control is an effective strategy, and a simple and effective method is provided for optimizing the performance of other types of piezoelectric ceramics.
本发明涉及高性能锆钛酸铅基压电陶瓷及其制备方法，具体涉及通过固相烧结工艺制备不同质量分数MnCO3掺杂的(Pb0.92Sr0.08)(Zr0.533Ti0.443Nb0.024)O3(PSZTN‑xMn)压电陶瓷的方法，属功能陶瓷领域。通过固相烧结工艺制备了不同质量分数MnCO3掺杂的PSZTN‑xMn压电陶瓷，发现在一定掺杂范围内，Mn离子促进了PSZTN压电陶瓷中晶粒的生长，并且产生了显著的硬化效应，而压电响应仅有轻微损失，最终在MnCO3掺杂量为0.4～0.5wt.％的大晶粒PSZTN陶瓷样品中实现了高d33和高Qm的性能组合：d33＝510～460pC/N，Qm＝614～750，kp＝0.63～0.59，tanδ＝0.002～0.004，Tc＝278℃。该工作成功实现了PZT基压电陶瓷综合性能的突破，证明了通过晶粒尺寸调控来协同优化压电陶瓷综合性能是一种行之有效的策略，为优化其他种类压电陶瓷的性能提供了一个简单有效的方法。
High-performance lead zirconate titanate-based piezoelectric ceramic and preparation method thereof
一种高性能锆钛酸铅基压电陶瓷及其制备方法
LU JINGTONG (Autor:in) / BI KE (Autor:in) / LI ZHAO (Autor:in) / XU JIANCHUN (Autor:in) / FENG ZUNPENG (Autor:in)
19.09.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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