(1-x)(K0.44Na0.52Li0.04)(Nb0.84Ta0.10Sb0.06)O3-xSrTiO3 Lead Free Piezoelectric Ceramics

Ming He Cao; Wan Qiang Wang; Zhi Yong Yu; Hua Hao; Han Xing Liu

doi:10.4028/www.scientific.net/KEM.368-372.1896

Paper Titles

Preparation of KNbO₃ Powder by Modified Pechini Method from Layered Perovskite Aqueous Solution
p.1883

Phase Development during Mixed–Oxide Processing of a [Na_0.5K_0.5NbO₃]_1-x -[LiTaO₃]_x Powder
p.1886

Influence of Sintering Temperature and Sintering Aid on Electrical Properties of (K, Na)NbO₃-LT Ceramics
p.1890

Temperature Dependence of Raman Spectrum of Lead-Free Piezoelectric (Na_0.5K_0.5)NbO₃-LiNbO₃ Ceramics
p.1893

(1-x)(K_0.44Na_0.52Li_0.04)(Nb_0.84Ta_0.10Sb_0.06)O₃-xSrTiO₃ Lead Free Piezoelectric Ceramics
p.1896

Hydrothermal Synthesis of Na(Nb_1-xTa_x)O₃ Powder for Fabrication of Lead-Free Piezoelectric Ceramics
p.1899

Fabrication and Characterization of Li₂O Excess (Na_0.49K_0.49Li_0.02)(Nb_0.8Ta_0.2)O₃ Piezoelectric Ceramics
p.1902

Preparation and Characterization of High Textured KSr₂Nb₅O₁₅ Lead-Free Piezoelectric Ceramics
p.1905

Morphotropic Phase Boundary Study of the BNT-BKT Lead-Free Piezoelectric Ceramics
p.1908

HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372

(1-x)(K_0.44Na_0.52Li_0.04)(Nb_0.84Ta_0.10Sb_0.06)O₃-xSrTiO₃ Lead Free Piezoelectric Ceramics

Abstract:

(1-x)(K0.44Na0.52Li0.04)(Nb0.84Ta0.10Sb0.06)O3-xSrTiO3 (KNNT-ST) lead free piezoelectric ceramics have been synthesized by a solid state reaction method. The effect of SrTiO3 content on the piezoelectric properties, sintering behavior and microstructure of (1-x) KNNT-x ST ceramics was investigated. The experimental results showed that the addition of SrTiO3 can restrain the volatilization of Na ions and K ions and improve relative density of the samples. A morphotropic phase boundary between orthorhombic and tetragonal phases is found in the composition range of 0.03