Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Piezoelectric ceramic with high piezoelectric constant and high depolarization temperature and preparation method
The invention provides a piezoelectric ceramic component design with a high piezoelectric constant and a high depolarization temperature and a preparation method thereof, the chemical composition of a ceramic matrix is 0.8 (Bi0. 5Na0. 5) TiO3-(0.2-x) (Bi0. 5K0. 5) TiO3-xBaInO2.5, x is more than or equal to 0.01 and less than or equal to 0.05, according to the molar percentage of each element in the chemical formula, analytically pure Bi2O3, Na2CO3, TiO2, K2CO3, In2O3 and BaCO3 are weighed as initial raw materials, ball milling, drying and sintering are carried out, and the piezoelectric ceramic with the high piezoelectric constant and the high depolarization temperature is obtained. The preparation method comprises the following steps: carrying out primary ball milling, secondary ball milling, drying, granulating by using polyvinyl alcohol as a binder, standing, carrying out compression molding, carrying out glue discharging treatment, and carrying out secondary treatment to obtain the piezoelectric ceramic, the piezoelectric ceramic has a high piezoelectric constant and a high depolarization temperature at the same time, and the application scene and the temperature range of the lead-free piezoelectric ceramic are effectively expanded.
本发明提供了一种兼具高压电常数和高退极化温度的压电陶瓷组分设计及其制备方法，该陶瓷的基体化学成分为：0.8(Bi0.5Na0.5)TiO3‑(0.2‑x)(Bi0.5K0.5)TiO3‑xBaInO2.5，其中，x的取值范围为0.01≤x≤0.05，按照化学式中各元素的摩尔百分比，称取分析纯的Bi2O3、Na2CO3、TiO2、K2CO3、In2O3、BaCO3为初始原料，球磨、烘干、烧结，二次进行球磨、烘干，采用聚乙烯醇为粘结剂进行造粒，经过静置后，压制成型，进行排胶处理，进行二次，得到该压电陶瓷，所述压电陶瓷同时具备高压电常数和高退极化温度，有效扩展了无铅压电陶瓷的应用场景和温度范围。
Piezoelectric ceramic with high piezoelectric constant and high depolarization temperature and preparation method
The invention provides a piezoelectric ceramic component design with a high piezoelectric constant and a high depolarization temperature and a preparation method thereof, the chemical composition of a ceramic matrix is 0.8 (Bi0. 5Na0. 5) TiO3-(0.2-x) (Bi0. 5K0. 5) TiO3-xBaInO2.5, x is more than or equal to 0.01 and less than or equal to 0.05, according to the molar percentage of each element in the chemical formula, analytically pure Bi2O3, Na2CO3, TiO2, K2CO3, In2O3 and BaCO3 are weighed as initial raw materials, ball milling, drying and sintering are carried out, and the piezoelectric ceramic with the high piezoelectric constant and the high depolarization temperature is obtained. The preparation method comprises the following steps: carrying out primary ball milling, secondary ball milling, drying, granulating by using polyvinyl alcohol as a binder, standing, carrying out compression molding, carrying out glue discharging treatment, and carrying out secondary treatment to obtain the piezoelectric ceramic, the piezoelectric ceramic has a high piezoelectric constant and a high depolarization temperature at the same time, and the application scene and the temperature range of the lead-free piezoelectric ceramic are effectively expanded.
本发明提供了一种兼具高压电常数和高退极化温度的压电陶瓷组分设计及其制备方法，该陶瓷的基体化学成分为：0.8(Bi0.5Na0.5)TiO3‑(0.2‑x)(Bi0.5K0.5)TiO3‑xBaInO2.5，其中，x的取值范围为0.01≤x≤0.05，按照化学式中各元素的摩尔百分比，称取分析纯的Bi2O3、Na2CO3、TiO2、K2CO3、In2O3、BaCO3为初始原料，球磨、烘干、烧结，二次进行球磨、烘干，采用聚乙烯醇为粘结剂进行造粒，经过静置后，压制成型，进行排胶处理，进行二次，得到该压电陶瓷，所述压电陶瓷同时具备高压电常数和高退极化温度，有效扩展了无铅压电陶瓷的应用场景和温度范围。
Piezoelectric ceramic with high piezoelectric constant and high depolarization temperature and preparation method
兼具高压电常数和高退极化温度的压电陶瓷及制备方法
LI ZHITAO (Autor:in) / ZUO XIAOYAN (Autor:in) / GONG XUE (Autor:in) / HU SHUAISHUAI (Autor:in) / SONG HAIXIANG (Autor:in)
16.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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