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Manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic as well as preparation method and application thereof
The invention provides manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing Bi2O3, Na2CO3, K2CO3, BaCO3, TiO2 and MnO2, adding absolute ethyl alcohol, carrying out ball milling, drying, and calcining to obtain pre-sintered powder with a perovskite structure; adding absolute ethyl alcohol into the pre-sintered powder with the perovskite structure, carrying out ball milling, drying, and carrying out compression molding; adding a binder into the mixed solution, discharging the binder at 500-650 DEG C for 2-4 hours, sintering at 1150-1200 DEG C, and keeping the temperature for 2-3 hours at the heating rate of 2-3 DEG C/min and the cooling rate of 4-5 DEG C/min to obtain a manganese-doped sodium bismuth titanate-potassium bismuth titanate-barium titanate ceramic chip; and plating gold on the sintered ceramic chip for 10-20 minutes, and carrying out polarization treatment to obtain the manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic. The manganese-doped sodium bismuth titanate-potassium bismuth titanate-barium titanate piezoelectric ceramic prepared by the preparation method can be used for piezoelectric devices.
本发明提供了一种锰掺杂钛酸铋钠基无铅压电陶瓷及其制备方法和应用。该制备方法包括：将Bi2O3、Na2CO3、K2CO3、BaCO3、TiO2和MnO2混合，加入无水乙醇，球磨后烘干，锻烧，得到具有钙钛矿结构的预烧粉体；向具有钙钛矿结构的预烧粉体加入无水乙醇球磨，烘干，压制成型；在500℃‑650℃排粘合剂2h‑4h，在1150‑1200℃烧结，保温2‑3h，升温速率为2‑3℃/min，降温速率为4‑5℃/min，得到锰掺杂钛酸铋钠‑钛酸铋钾‑钛酸钡陶瓷片；将烧结后的陶瓷片镀金10min‑20min，进行极化处理，得到锰掺杂钛酸铋钠基无铅压电陶瓷。通过上述制备方法制备得到的锰掺杂钛酸铋钠‑钛酸铋钾‑钛酸钡压电陶瓷可以用于压电器件。
Manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic as well as preparation method and application thereof
The invention provides manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic as well as a preparation method and application thereof. The preparation method comprises the following steps: mixing Bi2O3, Na2CO3, K2CO3, BaCO3, TiO2 and MnO2, adding absolute ethyl alcohol, carrying out ball milling, drying, and calcining to obtain pre-sintered powder with a perovskite structure; adding absolute ethyl alcohol into the pre-sintered powder with the perovskite structure, carrying out ball milling, drying, and carrying out compression molding; adding a binder into the mixed solution, discharging the binder at 500-650 DEG C for 2-4 hours, sintering at 1150-1200 DEG C, and keeping the temperature for 2-3 hours at the heating rate of 2-3 DEG C/min and the cooling rate of 4-5 DEG C/min to obtain a manganese-doped sodium bismuth titanate-potassium bismuth titanate-barium titanate ceramic chip; and plating gold on the sintered ceramic chip for 10-20 minutes, and carrying out polarization treatment to obtain the manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic. The manganese-doped sodium bismuth titanate-potassium bismuth titanate-barium titanate piezoelectric ceramic prepared by the preparation method can be used for piezoelectric devices.
本发明提供了一种锰掺杂钛酸铋钠基无铅压电陶瓷及其制备方法和应用。该制备方法包括：将Bi2O3、Na2CO3、K2CO3、BaCO3、TiO2和MnO2混合，加入无水乙醇，球磨后烘干，锻烧，得到具有钙钛矿结构的预烧粉体；向具有钙钛矿结构的预烧粉体加入无水乙醇球磨，烘干，压制成型；在500℃‑650℃排粘合剂2h‑4h，在1150‑1200℃烧结，保温2‑3h，升温速率为2‑3℃/min，降温速率为4‑5℃/min，得到锰掺杂钛酸铋钠‑钛酸铋钾‑钛酸钡陶瓷片；将烧结后的陶瓷片镀金10min‑20min，进行极化处理，得到锰掺杂钛酸铋钠基无铅压电陶瓷。通过上述制备方法制备得到的锰掺杂钛酸铋钠‑钛酸铋钾‑钛酸钡压电陶瓷可以用于压电器件。
Manganese-doped sodium bismuth titanate-based leadless piezoelectric ceramic as well as preparation method and application thereof
一种锰掺杂钛酸铋钠基无铅压电陶瓷及其制备方法和应用
GU MEIJING (author) / CAO WENWU (author) / MU ZHONGMIN (author)
2022-08-19
Patent
Electronic Resource
Chinese
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