By solid state reaction method, ceramic pellets of Na_0.695K_0.305NbO₃ have been prepared. X-ray- diffraction, Piezo properties, scanning electron microscope, and temperature dependence of dielectric constant and loss tangent of the prepared samples have been studied. It has been observed that, at the transition temperature, dielectric constant peak shifts to lower temperature, and the dielectric constant and loss tangent peak heights decrease, with increasing frequency, and show three structural phase transitions.

中文翻译：

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无铅陶瓷Na1-XKxNbO3的电性能，在x = 0.305。

通过固态反应法，制备了Na _0.695 K _0.305 NbO _3的陶瓷颗粒。研究了所制备样品的X射线衍射，压电性能，扫描电子显微镜以及介电常数和损耗角正切的温度依赖性。已经观察到，在转变温度下，介电常数峰移至较低温度，并且介电常数和损耗正切峰高随频率增加而降低，并显示出三个结构相变。