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Potassium-sodium niobate based leadless piezoelectric ceramic and preparation method thereof
The invention relates to potassium-sodium niobate based leadless piezoelectric ceramic and a preparation method thereof and belongs to the field of functional ceramic materials. The chemical formula of the ceramic is as follows: (ABO3)1-x(BaZrO3)y(MnO2)y. The preparation method is as follows: K2CO3, Na2CO3, Nb2O5, Bi2O3, Li2CO3, TiO2, BaCO3, ZrO2 and MnO2 are mixed, absolute ethyl alcohol is added, the mixture is subjected to ball milling and dried, then mixed powder is obtained, and the powder is pre-sintered; absolute ethyl alcohol is added to the sintered powder, the mixture is subjected to ball milling again and dried, and mixed powder is obtained; the mixed powder is subjected to cold press molding, rough ceramic blank is obtained and sintered, and a ceramic sample is obtained; the ceramic sample is subjected to polarization treatment, and the potassium-sodium niobate based leadless piezoelectric ceramic is obtained. The prepared potassium-sodium niobate based leadless piezoelectric ceramic has excellent piezoelectric performance and temperature stability.
Potassium-sodium niobate based leadless piezoelectric ceramic and preparation method thereof
The invention relates to potassium-sodium niobate based leadless piezoelectric ceramic and a preparation method thereof and belongs to the field of functional ceramic materials. The chemical formula of the ceramic is as follows: (ABO3)1-x(BaZrO3)y(MnO2)y. The preparation method is as follows: K2CO3, Na2CO3, Nb2O5, Bi2O3, Li2CO3, TiO2, BaCO3, ZrO2 and MnO2 are mixed, absolute ethyl alcohol is added, the mixture is subjected to ball milling and dried, then mixed powder is obtained, and the powder is pre-sintered; absolute ethyl alcohol is added to the sintered powder, the mixture is subjected to ball milling again and dried, and mixed powder is obtained; the mixed powder is subjected to cold press molding, rough ceramic blank is obtained and sintered, and a ceramic sample is obtained; the ceramic sample is subjected to polarization treatment, and the potassium-sodium niobate based leadless piezoelectric ceramic is obtained. The prepared potassium-sodium niobate based leadless piezoelectric ceramic has excellent piezoelectric performance and temperature stability.
Potassium-sodium niobate based leadless piezoelectric ceramic and preparation method thereof
WANG KE (Autor:in) / ZHANG MAOHUA (Autor:in) / YAO FANGZHOU (Autor:in) / LI JINGFENG (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2021
Potassium-sodium niobate-based leadless piezoelectric ceramic and preparation method thereof
| Europäisches Patentamt | 2022
Potassium-sodium niobate-based leadless piezoelectric ceramic and preparation method thereof
| Europäisches Patentamt | 2022
Potassium-sodium niobate-based leadless piezoelectric ceramic and preparation method thereof
| Europäisches Patentamt | 2022
Potassium-sodium niobate-based leadless piezoelectric ceramic and preparation method thereof
| Europäisches Patentamt | 2024