CAJ | 학술논문

基于0.36BiScO_3-0.64PbTiO_3(BSPT64)高温压电陶瓷体系, 引入Ga_2O_3并通过传统固相反应法制备了 0.36[BiSc_(1-x)Ga_xO_3]-0.64PbTiO_3(x=0.001、0.003、0.005、0.008、0.01、0.015、0.02)系列压电陶瓷.X射线衍射分析表明Ga~(3+)取代B位的Sc~(3+)不影响BSPT64体系的钙钛矿结构.通过对材料介电和压电性能的研究,发现在取代量x=0.01附近,BGSPT64x陶瓷的各项性能表现最优.BGSPT64-0.01陶瓷的压电常数d_(33)、机电耦合系数kp分别为510 pC/N和61%,剩余极化强度P_r和矫顽场E_c分别为49 μC/cm~2和21 kV/cm.研究表明,BGSPT64-0.01陶瓷是一种优良的压电换能器和传感器材料.
기우0.36BiScO_3-0.64PbTiO_3(BSPT64)고온압전도자체계, 인입Ga_2O_3병통과전통고상반응법제비료 0.36[BiSc_(1-x)Ga_xO_3]-0.64PbTiO_3(x=0.001、0.003、0.005、0.008、0.01、0.015、0.02)계렬압전도자.X사선연사분석표명Ga~(3+)취대B위적Sc~(3+)불영향BSPT64체계적개태광결구.통과대재료개전화압전성능적연구,발현재취대량x=0.01부근,BGSPT64x도자적각항성능표현최우.BGSPT64-0.01도자적압전상수d_(33)、궤전우합계수kp분별위510 pC/N화61%,잉여겁화강도P_r화교완장E_c분별위49 μC/cm~2화21 kV/cm.연구표명,BGSPT64-0.01도자시일충우량적압전환능기화전감기재료.
Ceramics of 0.36[BiSc_(1-x)Ga_xO_3]-0.64PbTiO_3(x=0.001、0.003、0.005、0.008、0.01、0.015、0.02) are prepared by conventional solid state reactions when Ga_2O_3 is doped into 0.36BiScO_3-0.64PbTiO_3(BSPT64) system. The analysis results of X-ray diffraction reveal that Ga~(3+)replacing Sc~(3+) does not change the perovskite structure of BSPT64. The dielectric and piezoelectric properties are investigated. The results show that BGSPT64-0.01 has an optimized characterization, i.e. its piezoelectric coefficient d_(33),planar coupling coefficient k_p, remnant polarization P_rand coercive field E_care respectively 510 pC/N,61%,49 μC/cm~2and 21kV/cm. The research results show that the BGSPT64-0.01 ceramics is a good candidate material for the piezoelectric actuator and transducers.