Abstract Potassium tantalum niobate (KTa1-yNbyO3, KTN)-barium titanate (BaTiO3, BT) solid solution system 0.02[KTN]-0.98[BT] ceramics with various microstructures were prepared by modified two-step sintering method, and their dielectric and piezoelectric properties were observed. For 0.02K(Ta0.5Nb0.5)O3-0.98BaTiO3 ceramics ferroelectric tetragonal crystalline structure was found for sintering temperature1230, 1240, 1250, 1260, and 1270 °C. A large grain growth was observed for the BT grains of the samples. By observing the strain vs. electric field curves slope apparent piezoelectric constant d33* was investigated. The piezoelectricity d33 is found in proportional to escaping weight % of potassium at increasing sintering temperatures. Enhanced piezoelectric constant d33* of value 391 pm/V was found for sintering temperature 1240 °C.

中文翻译：

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铌酸钾-钛酸钡(KTN-BT)固溶体系陶瓷的制备及其压电性能

摘要 采用改进的两步烧结法制备了铌酸钾（KTa1-yNbyO3，KTN）-钛酸钡（BaTiO3，BT）固溶体体系0.02[KTN]-0.98[BT]陶瓷属性进行了观察。对于 0.02K(Ta0.5Nb0.5)O3-0.98BaTiO3 陶瓷，发现其铁电四方晶体结构的烧结温度为 1230、1240、1250、1260 和 1270 °C。观察到样品的 BT 晶粒有大的晶粒生长。通过观察应变与电场曲线的斜率，研究了表观压电常数 d33*。发现压电性 d33 与在增加的烧结温度下逃逸的钾的重量百分比成正比。对于 1240 °C 的烧结温度，发现增强的压电常数 d33* 值为 391 pm/V。