A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Texture preparation method of high-performance bismuth ferrite-barium titanate lead-free piezoelectric ceramic
The invention discloses a texture preparation method of high-performance bismuth ferrite-barium titanate lead-free piezoelectric ceramic, the general formula of the ceramic is # imgabs0 #, the molar fraction ratio of BiFeO3 to BaTiO3 in the formula is 2: 1, and x, y, t and m all represent molar fractions and are 0 lt; x is less than or equal to 0.05, 0lt; y is less than or equal to 0.05, 0lt; t is less than or equal to 0.05, 0lt; and m < = 0.05. According to the invention, a temperature gradient field is constructed in the sintering stage, so that the ceramic grains are textured and directionally grow, and the textured piezoelectric ceramic of which the piezoelectric constant d33 at 350 DEG C can reach more than 1000 pC/N and the Tdr can reach more than 350 DEG C is obtained. The preparation process is simple, and the prepared ceramic has excellent high-temperature performance and can be applied to the field of high-temperature piezoelectricity.
本发明公开了一种高性能铁酸铋‑钛酸钡无铅压电陶瓷的织构制备方法，所述陶瓷组成通式为#imgabs0#式中BiFeO3和BaTiO3的摩尔分数比为2：1，x、y、t和m均表示摩尔分数，且0
Texture preparation method of high-performance bismuth ferrite-barium titanate lead-free piezoelectric ceramic
The invention discloses a texture preparation method of high-performance bismuth ferrite-barium titanate lead-free piezoelectric ceramic, the general formula of the ceramic is # imgabs0 #, the molar fraction ratio of BiFeO3 to BaTiO3 in the formula is 2: 1, and x, y, t and m all represent molar fractions and are 0 lt; x is less than or equal to 0.05, 0lt; y is less than or equal to 0.05, 0lt; t is less than or equal to 0.05, 0lt; and m < = 0.05. According to the invention, a temperature gradient field is constructed in the sintering stage, so that the ceramic grains are textured and directionally grow, and the textured piezoelectric ceramic of which the piezoelectric constant d33 at 350 DEG C can reach more than 1000 pC/N and the Tdr can reach more than 350 DEG C is obtained. The preparation process is simple, and the prepared ceramic has excellent high-temperature performance and can be applied to the field of high-temperature piezoelectricity.
本发明公开了一种高性能铁酸铋‑钛酸钡无铅压电陶瓷的织构制备方法，所述陶瓷组成通式为#imgabs0#式中BiFeO3和BaTiO3的摩尔分数比为2：1，x、y、t和m均表示摩尔分数，且0
Texture preparation method of high-performance bismuth ferrite-barium titanate lead-free piezoelectric ceramic
一种高性能铁酸铋-钛酸钡无铅压电陶瓷的织构制备方法
WANG XUETING (author) / YANG HUABIN (author) / QIU SHAOHONG (author) / CHEN QIAOHONG (author) / YANG LING (author) / ZHU JIAMING (author)
2024-10-15
Patent
Electronic Resource
Chinese
| European Patent Office | 2024
| European Patent Office | 2023
| European Patent Office | 2022
| European Patent Office | 2024
| European Patent Office | 2022