A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Lead-free potassium-sodium niobate-based textured piezoelectric ceramic with high-voltage electric energy collection performance and preparation method of lead-free potassium-sodium niobate-based textured piezoelectric ceramic
The invention relates to a lead-free potassium-sodium niobate-based textured piezoelectric ceramic with high-voltage electric energy collection performance and a preparation method thereof, the chemical general formula of the lead-free potassium-sodium niobate-based textured piezoelectric ceramic is 97 wt.% (K < 0.505 > Na < 0.5 > (0.99-x%) Ca < 0.01 > Bi < 0.5. X%) (Nb < 0.965 > (0.99-x%) Sb < 0.035 > (0.99-x%) Zr < 0.01 > Hf < 0.98. X% > Ti < 0.02. X%) + 3 wt.% NaNbO3, and x is greater than or equal to 0 and less than or equal to 7. Compared with the prior art, the lead-free potassium sodium niobate-based textured piezoelectric ceramic prepared by combining component design, a traditional texturing tape casting process and a two-step sintering method has an ultrahigh piezoelectric coefficient and an excellent electromechanical coupling coefficient, so that high energy collection performance can be generated; the method is of great significance to development of safe, long-life and environment-friendly energy supply materials.
本发明涉及一种具备高压电能量收集性能的无铅铌酸钾钠基织构压电陶瓷及其制备方法，所述无铅铌酸钾钠基织构压电陶瓷的化学通式为97wt.％(K0.505Na0.5(0.99‑x％)Ca0.01Bi0.5·x％)(Nb0.965(0.99‑x％)Sb0.035(0.99‑x％)Zr0.01Hf0.98·x％Ti0.02·x％)+3wt.％NaNbO3，其中0≤x≤7。与现有技术相比，本发明通过结合组分设计、传统的织构化流延工艺以及两步烧结法所制得的无铅铌酸钾钠基织构压电陶瓷具有超高的压电系数以及优异的机电耦合系数，从而可以产生高的能量收集性能，这对于安全、长寿命和环保能源供应材料的开发具有重大意义。
Lead-free potassium-sodium niobate-based textured piezoelectric ceramic with high-voltage electric energy collection performance and preparation method of lead-free potassium-sodium niobate-based textured piezoelectric ceramic
The invention relates to a lead-free potassium-sodium niobate-based textured piezoelectric ceramic with high-voltage electric energy collection performance and a preparation method thereof, the chemical general formula of the lead-free potassium-sodium niobate-based textured piezoelectric ceramic is 97 wt.% (K < 0.505 > Na < 0.5 > (0.99-x%) Ca < 0.01 > Bi < 0.5. X%) (Nb < 0.965 > (0.99-x%) Sb < 0.035 > (0.99-x%) Zr < 0.01 > Hf < 0.98. X% > Ti < 0.02. X%) + 3 wt.% NaNbO3, and x is greater than or equal to 0 and less than or equal to 7. Compared with the prior art, the lead-free potassium sodium niobate-based textured piezoelectric ceramic prepared by combining component design, a traditional texturing tape casting process and a two-step sintering method has an ultrahigh piezoelectric coefficient and an excellent electromechanical coupling coefficient, so that high energy collection performance can be generated; the method is of great significance to development of safe, long-life and environment-friendly energy supply materials.
本发明涉及一种具备高压电能量收集性能的无铅铌酸钾钠基织构压电陶瓷及其制备方法，所述无铅铌酸钾钠基织构压电陶瓷的化学通式为97wt.％(K0.505Na0.5(0.99‑x％)Ca0.01Bi0.5·x％)(Nb0.965(0.99‑x％)Sb0.035(0.99‑x％)Zr0.01Hf0.98·x％Ti0.02·x％)+3wt.％NaNbO3，其中0≤x≤7。与现有技术相比，本发明通过结合组分设计、传统的织构化流延工艺以及两步烧结法所制得的无铅铌酸钾钠基织构压电陶瓷具有超高的压电系数以及优异的机电耦合系数，从而可以产生高的能量收集性能，这对于安全、长寿命和环保能源供应材料的开发具有重大意义。
Lead-free potassium-sodium niobate-based textured piezoelectric ceramic with high-voltage electric energy collection performance and preparation method of lead-free potassium-sodium niobate-based textured piezoelectric ceramic
一种具备高压电能量收集性能的无铅铌酸钾钠基织构压电陶瓷及其制备方法
ZHAI JIWEI (author) / LIN JINFENG (author) / LI YANXIA (author) / SHEN BO (author)
2023-09-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Preparation method of potassium-sodium-niobate-based lead-free piezoelectric ceramic
| European Patent Office | 2022
| European Patent Office | 2023
| European Patent Office | 2023