A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of novel potassium sodium niobate-based ferroelectric ceramic with high strain and high Curie temperature
The invention relates to the field of potassium sodium niobate based ferroelectric ceramics. The invention discloses development of novel potassium sodium niobate based ferroelectric ceramic with high strain and high Curie temperature. The ceramic has an orthogonal-tetragonal (O-T) two-phase coexisting crystal structure, and the chemical composition of the ceramic is 0.97 (K < 0.48 > Na < 0.52 >) La < 0.0075 > (Zr < 0.0025 > Nb < 0.9975 >) O < 3 >-0.03 SrTiO3. The potassium-sodium niobate-based ferroelectric ceramic prepared by the method has good strain performance, the strain reaches 0.22% under an external electric field of 40kV/cm, the Curie temperature is 280 DEG C, and the potassium-sodium niobate-based ferroelectric ceramic is simple to prepare and low in cost.
本发明涉及铌酸钾钠基铁电陶瓷领域。公开了一种新型高应变高居里温度铌酸钾钠基铁电陶瓷的开发。所述陶瓷具有正交‑四方(O‑T)两相共存晶体结构，化学组成为0.97(K0.48Na0.52)La0.0075(Zr0.0025Nb0.9975)O3‑0.03SrTiO3。本发明制备的铌酸钾钠基铁电陶瓷具有良好的应变性能，在外电场40kV/cm下，应变达到0.22％，居里温度为280℃，制备简单，成本低廉。
Preparation method of novel potassium sodium niobate-based ferroelectric ceramic with high strain and high Curie temperature
The invention relates to the field of potassium sodium niobate based ferroelectric ceramics. The invention discloses development of novel potassium sodium niobate based ferroelectric ceramic with high strain and high Curie temperature. The ceramic has an orthogonal-tetragonal (O-T) two-phase coexisting crystal structure, and the chemical composition of the ceramic is 0.97 (K < 0.48 > Na < 0.52 >) La < 0.0075 > (Zr < 0.0025 > Nb < 0.9975 >) O < 3 >-0.03 SrTiO3. The potassium-sodium niobate-based ferroelectric ceramic prepared by the method has good strain performance, the strain reaches 0.22% under an external electric field of 40kV/cm, the Curie temperature is 280 DEG C, and the potassium-sodium niobate-based ferroelectric ceramic is simple to prepare and low in cost.
本发明涉及铌酸钾钠基铁电陶瓷领域。公开了一种新型高应变高居里温度铌酸钾钠基铁电陶瓷的开发。所述陶瓷具有正交‑四方(O‑T)两相共存晶体结构，化学组成为0.97(K0.48Na0.52)La0.0075(Zr0.0025Nb0.9975)O3‑0.03SrTiO3。本发明制备的铌酸钾钠基铁电陶瓷具有良好的应变性能，在外电场40kV/cm下，应变达到0.22％，居里温度为280℃，制备简单，成本低廉。
Preparation method of novel potassium sodium niobate-based ferroelectric ceramic with high strain and high Curie temperature
一种新型高应变高居里温度铌酸钾钠基铁电陶瓷的制备方法
LI MIN (author) / LI KANGWEI (author) / PENG WENLUO (author) / LI XUEYANG (author) / CHEN JIANBING (author) / YANG XIAOHONG (author)
2022-08-30
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2023
| European Patent Office | 2022
Potassium-sodium niobate lead-free transparent ferroelectric ceramic and preparation method thereof
| European Patent Office | 2024