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Textured lead metaniobate-based high-temperature piezoelectric ceramic and preparation method thereof
The invention discloses a preparation method of textured lead metaniobate-based high-temperature piezoelectric ceramics. The preparation method comprises the following steps: obtaining seed crystals and PN-based ceramic powder; carrying out ball milling treatment on the obtained PN-based ceramic powder to obtain matrix slurry; mixing the matrix slurry with the seed crystal, and carrying out tape casting and laminating treatment to obtain a textured ceramic blank; after static pressure glue discharging treatment is conducted on the textured ceramic blank, sintering, polishing, silver plating and polarization treatment are conducted in sequence, and the PN-based textured piezoelectric ceramic is obtained. According to the method, seed crystals are introduced and mixed with matrix slurry, so that the texture of a ceramic blank is accurately controlled, the crystal growth direction of a matrix material in the sintering process is guided, the performance of a ceramic material is improved, the problems of deformation, cracking and the like in the forming process are reduced, the yield is increased, the waste of raw materials and the production cost are reduced, and the economic benefits are increased. The prepared textured lead metaniobate-based high-temperature piezoelectric ceramic has good piezoelectric property, high Curie temperature and low mechanical quality factor.
本发明公开了一种织构化的偏铌酸铅基高温压电陶瓷制备方法，包括如下步骤：获取种晶及PN基陶瓷粉末；将获取的所述PN基陶瓷粉末进行球磨处理得到基体浆料；将所述基体浆料与所述种晶混合后，流延叠压处理得到织构陶瓷胚体；将所述织构陶瓷胚体静压排胶处理后，依次经过烧结、打磨、镀银和极化处理得到PN基织构压电陶瓷。该方法中通过引入种晶并与基体浆料混合，精确控制陶瓷胚体的织构，引导基体材料在烧结过程中的晶体生长方向，改善陶瓷材料的性能，减少成型过程中的变形和开裂等问题，提高成品率，降低原材料的浪费和生产成本，提高经济效益。制备的织构化的偏铌酸铅基高温压电陶瓷具有良好的压电性能以及高居里温度与低机械品质因数。
Textured lead metaniobate-based high-temperature piezoelectric ceramic and preparation method thereof
The invention discloses a preparation method of textured lead metaniobate-based high-temperature piezoelectric ceramics. The preparation method comprises the following steps: obtaining seed crystals and PN-based ceramic powder; carrying out ball milling treatment on the obtained PN-based ceramic powder to obtain matrix slurry; mixing the matrix slurry with the seed crystal, and carrying out tape casting and laminating treatment to obtain a textured ceramic blank; after static pressure glue discharging treatment is conducted on the textured ceramic blank, sintering, polishing, silver plating and polarization treatment are conducted in sequence, and the PN-based textured piezoelectric ceramic is obtained. According to the method, seed crystals are introduced and mixed with matrix slurry, so that the texture of a ceramic blank is accurately controlled, the crystal growth direction of a matrix material in the sintering process is guided, the performance of a ceramic material is improved, the problems of deformation, cracking and the like in the forming process are reduced, the yield is increased, the waste of raw materials and the production cost are reduced, and the economic benefits are increased. The prepared textured lead metaniobate-based high-temperature piezoelectric ceramic has good piezoelectric property, high Curie temperature and low mechanical quality factor.
本发明公开了一种织构化的偏铌酸铅基高温压电陶瓷制备方法，包括如下步骤：获取种晶及PN基陶瓷粉末；将获取的所述PN基陶瓷粉末进行球磨处理得到基体浆料；将所述基体浆料与所述种晶混合后，流延叠压处理得到织构陶瓷胚体；将所述织构陶瓷胚体静压排胶处理后，依次经过烧结、打磨、镀银和极化处理得到PN基织构压电陶瓷。该方法中通过引入种晶并与基体浆料混合，精确控制陶瓷胚体的织构，引导基体材料在烧结过程中的晶体生长方向，改善陶瓷材料的性能，减少成型过程中的变形和开裂等问题，提高成品率，降低原材料的浪费和生产成本，提高经济效益。制备的织构化的偏铌酸铅基高温压电陶瓷具有良好的压电性能以及高居里温度与低机械品质因数。
Textured lead metaniobate-based high-temperature piezoelectric ceramic and preparation method thereof
一种织构化的偏铌酸铅基高温压电陶瓷及其制备方法
YAN YONGKE (Autor:in) / JIN RUOQI (Autor:in) / XU ZHUO (Autor:in) / HU LIQING (Autor:in) / TANG MINGYANG (Autor:in) / LIU XIN (Autor:in) / WANG YIKE (Autor:in) / REN XIAODAN (Autor:in)
06.09.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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