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Bismuth ferrite-barium titanate textured piezoelectric ceramic and preparation method thereof
The invention discloses bismuth ferrite-barium titanate textured piezoelectric ceramic and a preparation method thereof, and belongs to the technical field of ceramic preparation.The preparation method comprises the steps that BaTiO3 flaky microcrystals in the (001) crystal orientation serve as a template and are mixed with (1-x) BiFeO3-xBaTiO3 ceramic matrix powder, the matrix powder is made to grow in the crystal orientation of the template through a tape casting technology, and in the period, by controlling the amount of the BaTiO3 flaky microcrystals, the bismuth ferrite-barium titanate textured piezoelectric ceramic is obtained. According to the method, the BF-BT ceramic is prepared from BF-BT powder, the volume ratio of the BF-BT powder to the ceramic matrix powder does not exceed 0.06, the thickness of a cast film is 30-50 microns, the textured BF-BT ceramic is finally formed by adopting a high-temperature sintering and high-temperature quenching mode with the temperature as high as 970-1040 DEG C, the formed ceramic has good piezoelectric property and texture degree, and the method is simple in process and does not need to add extra materials.
本发明公开了一种铁酸铋‑钛酸钡织构化压电陶瓷及其制备方法，属于陶瓷制备技术领域，所述制备方法包括：以(001)晶向的BaTiO3片状微晶为模板，与(1‑x)BiFeO3‑xBaTiO3陶瓷基体粉混合，通过流延工艺使基体粉沿模板晶向生长，期间，通过控制BaTiO3片状微晶的量，使其与陶瓷基体粉的体积比不超过0.06，流延膜厚度为30～50μm，且采用温度高达970℃～1040℃的高温烧结与高温淬火的方式，最终形成织构化的BF‑BT陶瓷，所形成的陶瓷具有较好的压电性能和织构度，且上述方法工艺简单，不需要添加额外的材料。
Bismuth ferrite-barium titanate textured piezoelectric ceramic and preparation method thereof
The invention discloses bismuth ferrite-barium titanate textured piezoelectric ceramic and a preparation method thereof, and belongs to the technical field of ceramic preparation.The preparation method comprises the steps that BaTiO3 flaky microcrystals in the (001) crystal orientation serve as a template and are mixed with (1-x) BiFeO3-xBaTiO3 ceramic matrix powder, the matrix powder is made to grow in the crystal orientation of the template through a tape casting technology, and in the period, by controlling the amount of the BaTiO3 flaky microcrystals, the bismuth ferrite-barium titanate textured piezoelectric ceramic is obtained. According to the method, the BF-BT ceramic is prepared from BF-BT powder, the volume ratio of the BF-BT powder to the ceramic matrix powder does not exceed 0.06, the thickness of a cast film is 30-50 microns, the textured BF-BT ceramic is finally formed by adopting a high-temperature sintering and high-temperature quenching mode with the temperature as high as 970-1040 DEG C, the formed ceramic has good piezoelectric property and texture degree, and the method is simple in process and does not need to add extra materials.
本发明公开了一种铁酸铋‑钛酸钡织构化压电陶瓷及其制备方法，属于陶瓷制备技术领域，所述制备方法包括：以(001)晶向的BaTiO3片状微晶为模板，与(1‑x)BiFeO3‑xBaTiO3陶瓷基体粉混合，通过流延工艺使基体粉沿模板晶向生长，期间，通过控制BaTiO3片状微晶的量，使其与陶瓷基体粉的体积比不超过0.06，流延膜厚度为30～50μm，且采用温度高达970℃～1040℃的高温烧结与高温淬火的方式，最终形成织构化的BF‑BT陶瓷，所形成的陶瓷具有较好的压电性能和织构度，且上述方法工艺简单，不需要添加额外的材料。
Bismuth ferrite-barium titanate textured piezoelectric ceramic and preparation method thereof
一种铁酸铋-钛酸钡织构化压电陶瓷及其制备方法
FAN GUIFEN (author) / WANG BOWEN (author) / GUO HUITAO (author) / CHEN YUXIN (author) / LYU WENZHONG (author) / ZHOU JIAJUN (author)
2024-03-01
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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