CAJ | 학술논문

采用传统陶瓷工艺制备了（1-x）（K0．5 Na0．5）NbO3-xCaZrO3（简称KNN-CZ）无铅压电陶瓷。分析了陶瓷样品的相结构组成。测试结果表明：所有陶瓷样品均为钙钛矿相，未发现其它晶相。随着 CaZrO3含量的增加，（1-x）KNN-xCZ陶瓷的相结构由正交相转变为四方相，最后变为立方相。研究了不同 CaZrO3含量对压电性能的影响，实验表明：当CaZrO3含量为0．05 mol时，压电常数 d33和径向机电耦合系数 kp 分别达到了最大值196 pC/N和0．35。（1-x）KNN-xCZ （x＝0．05）陶瓷的压电性能展现了良好的温度稳定性和经时稳定性，这些结果表明（1-x）KNN-xCZ （x＝0．05）陶瓷是一种优良的无铅压电备选材料。
채용전통도자공예제비료（1-x）（K0．5 Na0．5）NbO3-xCaZrO3（간칭KNN-CZ）무연압전도자。분석료도자양품적상결구조성。측시결과표명：소유도자양품균위개태광상，미발현기타정상。수착 CaZrO3함량적증가，（1-x）KNN-xCZ도자적상결구유정교상전변위사방상，최후변위립방상。연구료불동 CaZrO3함량대압전성능적영향，실험표명：당CaZrO3함량위0．05 mol시，압전상수 d33화경향궤전우합계수 kp 분별체도료최대치196 pC/N화0．35。（1-x）KNN-xCZ （x＝0．05）도자적압전성능전현료량호적온도은정성화경시은정성，저사결과표명（1-x）KNN-xCZ （x＝0．05）도자시일충우량적무연압전비선재료。
Lead-free piezoelectric ceramics (1-x)(K0.5 Na0.5 )NbO3-xCaZrO3 (KNN-CZ)were prepared by traditional ce-ramics process.The phase structure of ceramics was analyzed.Results show that all specimens exhibit a pure perovskite structure and the phase structure at room temperature changes from orthorhombic to tetragonal phase,then to cubic phase with increasing amount of CaZrO3 .The effect of CaZrO3 content on piezoelectric properties was investigated in details. When the content of CaZrO3 is 0.05 mol,d33 and kp reach their maxmum.In addition,good temperature stability of electri-cal properties is obtained in (1-x)KNN-xCZ (x=0.05)ceramics These results indicate that(1-x)KNN-xCZ (x=0. 05)ceramic is a promising lead-free piezoelectric candidate materials.