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Lead-free bismuth ferrite-based piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free bismuth ferrite-based piezoelectric ceramic material
The invention relates to a lead-free bismuth ferrite-based piezoelectric ceramic material with high piezoelectric property and a preparation method thereof, the chemical general formula of the lead-free bismuth ferrite-based piezoelectric ceramic material is xBiFeO3-yBiAlO3-(1-x-y) BaTiO3 + 1mol% MnO2, x is equal to 0.65 to 0.70, and y is equal to 0.005 to 0.02. Compared with the prior art, the lead-free bismuth ferrite-based piezoelectric ceramic material prepared by a traditional solid-phase sintering method has the characteristics of good repeatability and consistency, excellent piezoelectric property (x = 0.67, y = 0.01, d33 = 220-230pC/N measured by polarization of a 4kV/mm direct-current electric field) and small leakage current, and the optimal sintering process of the lead-free bismuth ferrite-based piezoelectric ceramic material comprises two times of pre-sintering for 2 hours at 600 DEG C and 2 hours at 800 DEG C, and the preparation method has very important significance for preparing a high-performance high-Curie-temperature lead-free piezoelectric material.
本发明涉及一种具有高压电性能的无铅铁酸铋基压电陶瓷材料及其制备方法，所述无铅铁酸铋基压电陶瓷材料的化学通式为xBiFeO3‑yBiAlO3‑(1‑x‑y)BaTiO3+1mol％MnO2，其中x＝0.65‑0.70，y＝0.005‑0.02。与现有技术相比，本发明通过传统固相烧结法制备无铅铁酸铋基压电陶瓷材料，其具有重复性和一致性好、压电性能优异(x＝0.67，y＝0.01时，4kV/mm的直流电场极化测得d33＝220‑230pC/N)、漏电流小的特性，其最佳烧结工艺为分别经过600℃2h、800℃2h两次预烧，对于制备高性能高居里温度无铅压电材料具有非常重要的意义。
Lead-free bismuth ferrite-based piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free bismuth ferrite-based piezoelectric ceramic material
The invention relates to a lead-free bismuth ferrite-based piezoelectric ceramic material with high piezoelectric property and a preparation method thereof, the chemical general formula of the lead-free bismuth ferrite-based piezoelectric ceramic material is xBiFeO3-yBiAlO3-(1-x-y) BaTiO3 + 1mol% MnO2, x is equal to 0.65 to 0.70, and y is equal to 0.005 to 0.02. Compared with the prior art, the lead-free bismuth ferrite-based piezoelectric ceramic material prepared by a traditional solid-phase sintering method has the characteristics of good repeatability and consistency, excellent piezoelectric property (x = 0.67, y = 0.01, d33 = 220-230pC/N measured by polarization of a 4kV/mm direct-current electric field) and small leakage current, and the optimal sintering process of the lead-free bismuth ferrite-based piezoelectric ceramic material comprises two times of pre-sintering for 2 hours at 600 DEG C and 2 hours at 800 DEG C, and the preparation method has very important significance for preparing a high-performance high-Curie-temperature lead-free piezoelectric material.
本发明涉及一种具有高压电性能的无铅铁酸铋基压电陶瓷材料及其制备方法，所述无铅铁酸铋基压电陶瓷材料的化学通式为xBiFeO3‑yBiAlO3‑(1‑x‑y)BaTiO3+1mol％MnO2，其中x＝0.65‑0.70，y＝0.005‑0.02。与现有技术相比，本发明通过传统固相烧结法制备无铅铁酸铋基压电陶瓷材料，其具有重复性和一致性好、压电性能优异(x＝0.67，y＝0.01时，4kV/mm的直流电场极化测得d33＝220‑230pC/N)、漏电流小的特性，其最佳烧结工艺为分别经过600℃2h、800℃2h两次预烧，对于制备高性能高居里温度无铅压电材料具有非常重要的意义。
Lead-free bismuth ferrite-based piezoelectric ceramic material with high piezoelectric property and preparation method of lead-free bismuth ferrite-based piezoelectric ceramic material
一种具有高压电性能的无铅铁酸铋基压电陶瓷材料及其制备方法
ZHAI JIWEI (author) / JIA JIHAO (author) / SHEN BO (author)
2023-11-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
BISMUTH-FERRITE-BASED LEAD-FREE PIEZOELECTRIC CERAMIC MATERIAL AND PREPARATION METHOD THEREFOR
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