Microstructure and Electrical Properties of K0.5Na0.5NbO3-LiSbO3-BiFeO3-x %molZnO Lead-Free Piezoelectric Ceramics

Effects of sintering temperature on structure and properties of 0.98[K0.5Na0.5NbO3–LiSbO3–BiFeO3]–0.02ZnO piezoelectric ceramics

“…In preliminary works, we confirmed (1-x){0.996 [(0.95(K 0.5 Na 0.5 )NbO 3 -0.05LiSbO 3 ]-0.004BiFeO 3 }-xZnO (KNN-LS-BF-ZnO) ceramics exhibits the optimum electrical properties and the highest density when the ZnO content x is 1.5-2.0 mol% [14]. In this work, an investigation for the effects of sintering temperature on the structure and properties of 0.98{0.996[(0.95(K 0.5 Na 0.5 ) NbO 3 -0.05LiSbO 3 ]-0.004BiFeO 3 }-0.02ZnO (KNN-LS-BF-ZnO) piezoelectric ceramics had been conducted.…”

“…The sintering aids usually form liquid phase in sintering process, the liquid phase promotes the mobility of grain boundary, assists in improving the density and sintering behavior of KNN-base ceramics. Some researchers have reported that ZnO was effective in improving the density and electrical properties of KNN-based piezoelectric ceramics [13,14]. These reports have pointed out that the Zn 2?…”