【作者】 盖志刚； 王矜奉； 苏文斌； 亓鹏； 杜鹃； 明保全； 郑立梅；

【Author】 GAI Zhi-gang WANG Jin-feng SU Wen-bing QI Peng DU Juan MING Bao-quan ZHENG Li-mei (School of Physics and Microelectronics,State Key Laboratory of Crystal Materials,Shandong University,Jinan 250100,China)

【机构】 山东大学物理与微电子学院晶体材料国家重点实验室；

【摘要】 对（1-y）[(Na_0．80K_0．16Li_0．04)_0．5Bi_0．5]TiO₃-yBa (Zr_0．055Ti_0．945)O₃无铅压电陶瓷进行了系统研究,获得压电应变常数 d₃₃高达185（pC/N）的0．94[(Na_0．80K_0．16Li_0．04)_0．5 Bi_0．5]TiO₃-0．06Ba(Zr_0．055Ti_0．945)O₃压电陶瓷。还研究了该材料0．94[(Na_0．96-xK_xLi_0．04)_0．5Bi_0．5]TiO₃-0．06Ba(Zr_0．055 Ti_0．945)O₃的性质随 K 含量的变化。随着 Ba(Zr_0．055 Ti_0．945)O₃含量的增加,该陶瓷材料的介电温谱峰值向左移动,其介电峰温度缓慢降低；与此相反,随着 K 掺杂量的增加,该陶瓷材料的介电温谱峰值却向右明显移动,其介电峰温度明显升高．更多还原

【Abstract】 Lead-free piezoelectric ceramics （1-y） [(Na_0.80K_0.16Li_0.04)_0.5Bi_0.5]TiO₃-yBa(Zr_0.055Ti_0.945)O₃ were systematically investigated.The 0.94 [(Na_{0.80K0.16Li0.040.5}Bi_0.5]TiO₃-0.06Ba(Zr_0.055Ti_0.945)O₃ ceramics having a piezoelectric strain constant d₃₃ as high as 185（pC/N） was obtained.Lead-free 0.94 [(Na_0.96-xK_xLi_0.04)_0.5Bi_0.5]TiO₃-0.06Ba(Zr_0.055Ti_0.945)O₃ ceramics were fabricated with the variation of K content and their dielectric and piezoelectric characteristics were also investigated.As can be seen in the results,the peak of dielectric constant in the dielectric constant curve versus temperature moved leftward with the increase of Ba(Zr_0.055Ti_0.945)O₃ content.Accordingly,The temperature corresponding to maximum dielectric constant for the ceramics decreased slowly.However,the peak of dielectric constant in the dielectric constant curve versus temperature moved rightward with the increase of K content.Accordingly,The temperature corresponding to maximum dielectric constant for the ceramics increased slightly.更多还原