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Iron-titanium-scandium bismuth-barium-neodymium manganate lead-free piezoelectric ceramic material and preparation method thereof
The invention discloses an iron titanium scandium bismuth barium neodymium manganate leadless piezoelectric ceramic material and a preparation method thereof, the general formula of the piezoelectric ceramic is Bi (0.76-x) Ba (0.24-x) Nd (x) Mn (0.003) Fe (0.76-x) Ti (0.24-x) Sc (x) O3, and x is more than or equal to 0.005 and less than or equal to 0.02. A solid-phase reaction method is adopted, and the ceramic material is prepared through the processes of raw material mixing, pre-sintering, granulation, tabletting, glue discharging, sintering, silver firing, polarization and the like. The result shows that the iron titanium scandium bismuth barium neodymium manganate lead-free piezoelectric ceramic has the advantages of good sintering property, low loss, compact structure and excellent piezoelectric property, the piezoelectric constant d33 is 105-118 pC/N, and the Curie temperature TC is 560-620 DEG C; the electromechanical coupling coefficient kp is 0.3-0.32, and the mechanical quality factor Qm is 90-110.
本发明公开了一种铁钛钪锰酸铋钡钕无铅压电陶瓷材料及其制备方法，该压电陶瓷的通式为Bi0.76‑xBa0.24‑xNdxMn0.003Fe0.76‑xTi0.24‑xScxO3，其中0.005≤x≤0.02。采用固相反应法，经过原料混合，预烧，造粒，压片，排胶，烧结，烧银，极化等工艺制备陶瓷材料。结果表明，铁钛钪锰酸铋钡钕无铅压电陶瓷，其烧结特性好、损耗低、结构致密、压电性能优异：压电常数d33:105～118pC/N，居里温度TC:560～620℃；机电耦合系数kp:0.3～0.32，机械品质因数Qm:90～110。
Iron-titanium-scandium bismuth-barium-neodymium manganate lead-free piezoelectric ceramic material and preparation method thereof
The invention discloses an iron titanium scandium bismuth barium neodymium manganate leadless piezoelectric ceramic material and a preparation method thereof, the general formula of the piezoelectric ceramic is Bi (0.76-x) Ba (0.24-x) Nd (x) Mn (0.003) Fe (0.76-x) Ti (0.24-x) Sc (x) O3, and x is more than or equal to 0.005 and less than or equal to 0.02. A solid-phase reaction method is adopted, and the ceramic material is prepared through the processes of raw material mixing, pre-sintering, granulation, tabletting, glue discharging, sintering, silver firing, polarization and the like. The result shows that the iron titanium scandium bismuth barium neodymium manganate lead-free piezoelectric ceramic has the advantages of good sintering property, low loss, compact structure and excellent piezoelectric property, the piezoelectric constant d33 is 105-118 pC/N, and the Curie temperature TC is 560-620 DEG C; the electromechanical coupling coefficient kp is 0.3-0.32, and the mechanical quality factor Qm is 90-110.
本发明公开了一种铁钛钪锰酸铋钡钕无铅压电陶瓷材料及其制备方法，该压电陶瓷的通式为Bi0.76‑xBa0.24‑xNdxMn0.003Fe0.76‑xTi0.24‑xScxO3，其中0.005≤x≤0.02。采用固相反应法，经过原料混合，预烧，造粒，压片，排胶，烧结，烧银，极化等工艺制备陶瓷材料。结果表明，铁钛钪锰酸铋钡钕无铅压电陶瓷，其烧结特性好、损耗低、结构致密、压电性能优异：压电常数d33:105～118pC/N，居里温度TC:560～620℃；机电耦合系数kp:0.3～0.32，机械品质因数Qm:90～110。
Iron-titanium-scandium bismuth-barium-neodymium manganate lead-free piezoelectric ceramic material and preparation method thereof
一种铁钛钪锰酸铋钡钕无铅压电陶瓷材料及其制备方法
ZHU JIANGUO (Autor:in) / XIE LIXU (Autor:in) / XING JIE (Autor:in) / TAN ZHI (Autor:in) / MO MINGYUE (Autor:in) / XIE YINING (Autor:in)
14.04.2023
Patent
Elektronische Ressource
Chinesisch
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