Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Piezoelectric ceramic material with high Curie temperature and high piezoelectric coefficient and preparation method thereof
The invention relates to the field of piezoelectric ceramic materials, in particular to a piezoelectric ceramic material with high Curie temperature and high piezoelectric coefficient and a preparation method thereof, the structural formula of the piezoelectric ceramic material is as follows: (1-x-y) (Bi2O2) < 2 + > (Am-1BmO3m + 1) < 2-x > LiTaO3-yLaAlO3, A is any one or more of Na < + >, K < + >, Ca < 2 + >, Sr < 2 + >, Ba < 2 + >, Pb < 2 + >, Bi < 3 + > and La < 3 + >; b is any one or more of Fe < 3 + >, Ti < 4 + >, Nb < 5 + > and W < 6 + >; m is an integer between 1 and 4; 0 < x < = 0.2; 0 < y < = 0.2, the piezoelectric ceramic material prepared by the method has high Curie temperature and excellent electrochemical performance, the maximum piezoelectric constant can reach 35pC/N, and compared with the currently reported bismuth layered structure piezoelectric ceramic, the piezoelectric ceramic material has the advantage that the piezoelectric constant is greatly improved.
本发明涉及压电陶瓷材料领域，具体为一种高居里温度和高压电系数的压电陶瓷材料及其制备方法，其结构式如下所示：(1‑x‑y)(Bi2O2)2+(Am‑1BmO3m+1)2‑‑xLiTaO3‑yLaAlO3其中，A为Na+、K+、Ca2+、Sr2+、Ba2+、Pb2+、Bi3+、La3+中的任意一种或多种复合；B为Fe3+、Ti4+、Nb5+、W6+中的任意一种或多种复合；m为1‑4之间的整数；0＜x≤0.2；0＜y≤0.2，本发明所制备的压电陶瓷材料具有较高的居里温度，而且电化学性能优良，压电常数最大能达到35pC/N，相较于目前已有报道的铋层状结构压电陶瓷有较大幅度的提升。
Piezoelectric ceramic material with high Curie temperature and high piezoelectric coefficient and preparation method thereof
The invention relates to the field of piezoelectric ceramic materials, in particular to a piezoelectric ceramic material with high Curie temperature and high piezoelectric coefficient and a preparation method thereof, the structural formula of the piezoelectric ceramic material is as follows: (1-x-y) (Bi2O2) < 2 + > (Am-1BmO3m + 1) < 2-x > LiTaO3-yLaAlO3, A is any one or more of Na < + >, K < + >, Ca < 2 + >, Sr < 2 + >, Ba < 2 + >, Pb < 2 + >, Bi < 3 + > and La < 3 + >; b is any one or more of Fe < 3 + >, Ti < 4 + >, Nb < 5 + > and W < 6 + >; m is an integer between 1 and 4; 0 < x < = 0.2; 0 < y < = 0.2, the piezoelectric ceramic material prepared by the method has high Curie temperature and excellent electrochemical performance, the maximum piezoelectric constant can reach 35pC/N, and compared with the currently reported bismuth layered structure piezoelectric ceramic, the piezoelectric ceramic material has the advantage that the piezoelectric constant is greatly improved.
本发明涉及压电陶瓷材料领域，具体为一种高居里温度和高压电系数的压电陶瓷材料及其制备方法，其结构式如下所示：(1‑x‑y)(Bi2O2)2+(Am‑1BmO3m+1)2‑‑xLiTaO3‑yLaAlO3其中，A为Na+、K+、Ca2+、Sr2+、Ba2+、Pb2+、Bi3+、La3+中的任意一种或多种复合；B为Fe3+、Ti4+、Nb5+、W6+中的任意一种或多种复合；m为1‑4之间的整数；0＜x≤0.2；0＜y≤0.2，本发明所制备的压电陶瓷材料具有较高的居里温度，而且电化学性能优良，压电常数最大能达到35pC/N，相较于目前已有报道的铋层状结构压电陶瓷有较大幅度的提升。
Piezoelectric ceramic material with high Curie temperature and high piezoelectric coefficient and preparation method thereof
一种高居里温度和高压电系数的压电陶瓷材料及其制备方法
FANG HAOJIE (Autor:in) / HE YIWEN (Autor:in) / ZHANG XIAOYUN (Autor:in) / ZHANG GUOXIU (Autor:in) / FANG MEILING (Autor:in) / LIU JIANPING (Autor:in) / ZENG XIONG (Autor:in)
10.01.2025
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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