SINGLE CRYSTAL AND FABRICATION PROCESS OF (NA,K)NBO3 BASED PB-FREE PIEZOELECTRIC MATERIALS USING SOLID STATE SYNTHESIS

摘要

PURPOSE: A single crystal and a process for fabricating (Na,K)NbO3 based Pb-free piezoelectric materials using solid state synthesis are provided to improve nucleation speed by not using an additional seed. CONSTITUTION: A free lead piezoelectric material is a single crystal. CuO is mixed by a first milling process(S110). The mixture is calcined(S120). A second milling process is performed on the calcined mixture(S130). The mixture is sintered(S140). [Reference numerals] (S110) First milling step; (S120) Calcined step; (S130) Second milling step; (S140) Sintering step