PB-FREE CERAMIC COMPOSITE FOR BI SERIES THREE POSITIVE ION AND FABRICATION METHOD THEREOF

摘要

A Pb-free ceramic composite for Bi series three valent positive ion and a manufacturing method thereof are provided to improve dielectric characteristic and piezoelectric characteristic through new piezoelectric ceramics expressed to BK-TBM. A manufacturing method of Pb-free ceramic composite for Bi series three valent positive ion includes the following steps of: mixing a composition having a BKT-BM ceramics composition using Bi2O3, TiO2, Sc2O3, Fe2O3 powder; milling the composition with anhydrous ethanol; drying the powder; milling again the powder and drying; adding a binder Polyvinyl Alcohol(PVA) 5 wt% liquid in powder 0.5 wt%; sieving the powder; and sintering the composition.