Pb free piezoelectric (Na0.53K0.47)(Nb1-xTax)O3 ceramics and their fabrication method thereof

摘要

invention (Na _0.53 K _0.47 ) (Nb _1-x Ta _x ) O ₃ of the system lead-free (Pb-free) composition of the ceramics, and relates to a method of manufacturing the same , More specifically, unlike the conventional PZT ceramics toxic lead (Pb) system is the human body, and causing environmental pollution (Na _0.53 K _0.47 ) (Nb _1-x Ta _x ) O ₃ and eco-friendly by providing a piezoelectric ceramic material system, Na out with a hygroscopic material powder ₂ CO ₃ and K ₂ CO ₃ to thoroughly dry the apparent density of up to approximately 95% of the theoretical density. it is possible to obtain a sintered body, control the dielectric and piezoelectric properties through the substitution of Ta and Nb, Pb-Free (Na _0.53 K _0.47 ) (Nb _1-x Ta _x ) O ₃ to improve the piezoelectric properties of the ceramic piezoelectric material of the grid may be substituted for part of the conventional lead (Pb) system in whole or in part, it has the effect of reducing the cost can get that as well as eco-friendly sex. ;