Piezoelectric properties of (Li, Ag) modified (Na0.50K0.50)NbO3 lead-free ceramics with high Curie temperature

Piezoelectric properties of (Li, Ag, Sb) modified (K0.50Na0.50)NbO3 lead-free ceramics

“…The high Curie temperature of (1 − x)KNNL-xAS ceramics in this work is attributed to the Ag substitution. It was reported that Sb element in KNN-based ceramics could decrease the Curie temperature [3,4,[12][13][14], however, Ag ion could improve the Curie temperature of the ceramics [15]. In present work, it is thought that Ag ion decreases the effect of Sb on the Curie temperature of (1 − x)KNNL-xAS ceramics, which counteracts the decrease of the Curie temperature of (1 − x)KNNL-xAS ceramics for Sb substitution.…”

“…Therefore, it is necessary to search for lead-free piezoelectric ceramics with excellent properties. Recently, much attention for lead-free piezoelectric ceramics has been paid to (K 0.5 Na 0.5 )NbO 3 (KNN)-based ceramics because of its environmental harmony, good electrical properties, and high Curie temperature [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16].…”

Enhanced Temperature Stability of (1 − x)(K0.5Na0.5)0.94Li0.06NbO3-x(Bi0.5Na0.5)TiO3 Lead-Free Piezoelectric Ceramics

“…32,33 Recently, high de-poling temperatures have been reported in some KNNbased ceramics, such as KNN-LiSbO 3,5 KNN-(Li,Ag)NbO 3 , 34 KNN-(Li,K,Ag)NbO 3 , 35 and KNN-Ba(Zr 0.05 Ti 0.95 )O 3 -MnO 2 . 36 In our work the dependence of d 33 of the KNLN6-0.03BNT ceramics on the depolarization temperature was studied and is presented in Fig.…”

Phase structure, microstructure and ferroelectric properties of (1−x)[(K0.50Na0.50)0.94Li0.06](Nb0.94Sb0.06)O3–xCaTiO3 lead-free ceramics

“…Considerable attention for lead-free piezoelectric ceramics was recently given to (K 0.50 Na 0.50 )NbO 3 (KNN)-based ceramics for their excellent piezoelectric properties, high Curie temperature and environmental friendliness [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. The different additions are added into KNN to form new KNN-based ceramics for improving the densification and piezoelectric properties, such as KNN-LiSbO 3 [3], KNN-LiNbO 3 [6], KNN-LiNbO 3 -AgTaO 3 [8], and so on.…”