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Calcium zirconate and tantalum doped potassium sodium niobate-based piezoelectric ceramic and preparation method and application thereof
The invention belongs to the field of preparation of ceramic materials, and particularly relates to calcium zirconate and tantalum doped potassium sodium niobate-based piezoelectric ceramic and a preparation method and application thereof. The high piezoelectric property of the KNN-based piezoelectric ceramic can be greatly improved through the CaZrO3-doped potassium sodium niobate-based ceramic,and the d33 of the CaZrO3-doped KNN-based ceramic at 160 DEG C is greater than or equal to 200Pc/N. Meanwhile, tantalum ions are doped into the CaZrO3-KNN-based ceramic so that the CaZrO3-KNN-based ceramic still keeps good piezoelectric property and temperature stability under the condition that high-density lead-free ceramic is obtained.
本发明属于陶瓷材料制备领域，尤其涉及一种锆酸钙和钽掺杂的铌酸钾钠基压电陶瓷、其制备方法及应用。本发明通过CaZrO掺杂铌酸钾钠基陶瓷，可以较好地提高KNN基压电陶瓷的高压电性能，CaZrO掺杂的KNN基陶瓷在160℃的d≥200Pc/N。同时，在CaZrO‑KNN基陶瓷中掺入钽离子，在得到高致密度的无铅陶瓷情况下，使其仍保持良好的压电性能和温度稳定性。
Calcium zirconate and tantalum doped potassium sodium niobate-based piezoelectric ceramic and preparation method and application thereof
The invention belongs to the field of preparation of ceramic materials, and particularly relates to calcium zirconate and tantalum doped potassium sodium niobate-based piezoelectric ceramic and a preparation method and application thereof. The high piezoelectric property of the KNN-based piezoelectric ceramic can be greatly improved through the CaZrO3-doped potassium sodium niobate-based ceramic,and the d33 of the CaZrO3-doped KNN-based ceramic at 160 DEG C is greater than or equal to 200Pc/N. Meanwhile, tantalum ions are doped into the CaZrO3-KNN-based ceramic so that the CaZrO3-KNN-based ceramic still keeps good piezoelectric property and temperature stability under the condition that high-density lead-free ceramic is obtained.
本发明属于陶瓷材料制备领域，尤其涉及一种锆酸钙和钽掺杂的铌酸钾钠基压电陶瓷、其制备方法及应用。本发明通过CaZrO掺杂铌酸钾钠基陶瓷，可以较好地提高KNN基压电陶瓷的高压电性能，CaZrO掺杂的KNN基陶瓷在160℃的d≥200Pc/N。同时，在CaZrO‑KNN基陶瓷中掺入钽离子，在得到高致密度的无铅陶瓷情况下，使其仍保持良好的压电性能和温度稳定性。
Calcium zirconate and tantalum doped potassium sodium niobate-based piezoelectric ceramic and preparation method and application thereof
一种锆酸钙和钽掺杂的铌酸钾钠基压电陶瓷、其制备方法及应用
GAO XIAOJU (author) / ZHOU YAWEI (author) / MAN PENG (author) / WANG CHENG (author) / ZHANG CONG (author) / ZHANG WU (author)
2020-04-28
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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