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Preparation method for 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 leadless piezoelectric ceramic
The invention discloses a preparation method for a 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 leadless piezoelectric ceramic. The method includes: mixing a single phase leadless piezoelectric material 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 powder and ZnO powder evenly, and performing sintering at 1000DEG C for 1.0h to obtain a 0-3 type composite leadless piezoelectric ceramic of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3:xZnO (x=0, 0.1, 0.2, 0.4, with x being the mole percentage of ZnO relative to 0.94Bi0.5Na0.5TiO3-0.06BaTiO3). Specifically, ZnO exists in the substrate of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 in the form of mutually independent particles. The thermal depolarization temperature of the composite piezoelectric ceramic increases along with the increase of ZnO concentration until thermal depolarization disappears. The equipment needed by the method and the preparation process are simple and practicable.
Preparation method for 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 leadless piezoelectric ceramic
The invention discloses a preparation method for a 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 leadless piezoelectric ceramic. The method includes: mixing a single phase leadless piezoelectric material 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 powder and ZnO powder evenly, and performing sintering at 1000DEG C for 1.0h to obtain a 0-3 type composite leadless piezoelectric ceramic of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3:xZnO (x=0, 0.1, 0.2, 0.4, with x being the mole percentage of ZnO relative to 0.94Bi0.5Na0.5TiO3-0.06BaTiO3). Specifically, ZnO exists in the substrate of 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 in the form of mutually independent particles. The thermal depolarization temperature of the composite piezoelectric ceramic increases along with the increase of ZnO concentration until thermal depolarization disappears. The equipment needed by the method and the preparation process are simple and practicable.
Preparation method for 0.94Bi0.5Na0.5TiO3-0.06BaTiO3 leadless piezoelectric ceramic
ZHANG SHANTAO (Autor:in) / ZHANG JI (Autor:in) / LU MINGHUI (Autor:in) / CHEN YANBIN (Autor:in) / CHEN YANFENG (Autor:in)
22.07.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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