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Bismuth layered piezoelectric ceramic material as well as preparation method and application thereof
The invention provides a bismuth layered piezoelectric ceramic material as well as a preparation method and application thereof. The chemical composition of the bismuth layered piezoelectric ceramic material is Bi4Ti3-x (Mg1/2W1/2) xO12, and x is more than or equal to 0.005 and less than or equal to 0.1. According to the bismuth layered piezoelectric ceramic material, B-site titanium ions in Bi4Ti3O12 are replaced by B-site composite doping, a tungsten element and a magnesium element are used for B-site doping, the chemical composition of the bismuth layered piezoelectric ceramic material is Bi4Ti3-x (Mg1/2W1/2) xO12 (BTMW), the effect of a soft additive W < 6 + > and the synergistic effect of a hard additive Mg < 2 + > are combined, meanwhile, the lattice distortion degree of an oxygen octahedron in a bismuth layered structure of Bi4Ti3O12 can be adjusted, and the dielectric constant of the bismuth layered piezoelectric ceramic material is improved. And the effect of improving the piezoelectric property is achieved while the high Curie temperature is maintained. The invention also provides a preparation method and application of the bismuth layered piezoelectric ceramic material.
本发明提供了一种铋层状压电陶瓷材料及其制备方法和应用。本发明的铋层状压电陶瓷材料，化学组成为Bi4Ti3‑x(Mg1/2W1/2)xO12，0.005≤x≤0.1。本发明的铋层状压电陶瓷材料，采用B位复合掺杂取代Bi4Ti3O12中B位钛离子的方式，使用钨元素和镁元素进行B位掺杂，其化学组成为Bi4Ti3‑x(Mg1/2W1/2)xO12(BTMW)，结合“软性”添加物W6+作用以及“硬性”添加物Mg2+的协同作用，同时能够调整Bi4Ti3O12铋层状结构中氧八面体的晶格畸变程度，使其在保持高居里温度的同时达到提高压电性能的效果。本发明还提供了铋层状压电陶瓷材料的制备方法和应用。
Bismuth layered piezoelectric ceramic material as well as preparation method and application thereof
The invention provides a bismuth layered piezoelectric ceramic material as well as a preparation method and application thereof. The chemical composition of the bismuth layered piezoelectric ceramic material is Bi4Ti3-x (Mg1/2W1/2) xO12, and x is more than or equal to 0.005 and less than or equal to 0.1. According to the bismuth layered piezoelectric ceramic material, B-site titanium ions in Bi4Ti3O12 are replaced by B-site composite doping, a tungsten element and a magnesium element are used for B-site doping, the chemical composition of the bismuth layered piezoelectric ceramic material is Bi4Ti3-x (Mg1/2W1/2) xO12 (BTMW), the effect of a soft additive W < 6 + > and the synergistic effect of a hard additive Mg < 2 + > are combined, meanwhile, the lattice distortion degree of an oxygen octahedron in a bismuth layered structure of Bi4Ti3O12 can be adjusted, and the dielectric constant of the bismuth layered piezoelectric ceramic material is improved. And the effect of improving the piezoelectric property is achieved while the high Curie temperature is maintained. The invention also provides a preparation method and application of the bismuth layered piezoelectric ceramic material.
本发明提供了一种铋层状压电陶瓷材料及其制备方法和应用。本发明的铋层状压电陶瓷材料，化学组成为Bi4Ti3‑x(Mg1/2W1/2)xO12，0.005≤x≤0.1。本发明的铋层状压电陶瓷材料，采用B位复合掺杂取代Bi4Ti3O12中B位钛离子的方式，使用钨元素和镁元素进行B位掺杂，其化学组成为Bi4Ti3‑x(Mg1/2W1/2)xO12(BTMW)，结合“软性”添加物W6+作用以及“硬性”添加物Mg2+的协同作用，同时能够调整Bi4Ti3O12铋层状结构中氧八面体的晶格畸变程度，使其在保持高居里温度的同时达到提高压电性能的效果。本发明还提供了铋层状压电陶瓷材料的制备方法和应用。
Bismuth layered piezoelectric ceramic material as well as preparation method and application thereof
一种铋层状压电陶瓷材料及其制备方法和应用
DAI YEJING (author) / MA ZIQI (author) / LI BIN (author)
2023-12-29
Patent
Electronic Resource
Chinese
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