Fabrication and Characterization of Li2O Excess (Na0.49K0.49Li0.02)(Nb0.8Ta0.2)O3 Piezoelectric Ceramics

Min Soo Kim; Sin Woong Kim; Soon Jong Jeong; Jae Sung Song

doi:10.4028/www.scientific.net/KEM.368-372.1902

Paper Titles

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

Piezoelectric and Dielectric Properties of (Bi_0.5Na_0.5)_0.94(Ba_1-xSr_x)_0.06TiO₃ Lead-Free Piezoelectric Ceramics
p.1911

Piezoelectric and Dielectric Properties of Bi₂O₃-Doped (Bi_0.5Na_0.5)_0.94Ba_0.06TiO₃ Lead-Free Piezoelectric Ceramics
p.1915

HomeKey Engineering MaterialsKey Engineering Materials Vols. 368-372Fabrication and Characterization of Li2O Excess...

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

Abstract:

Dense Li2O excess (Na0.49K0.49Li0.02)(Nb0.8Ta0.2)O3 [NKLNT] ceramics were developed by conventional sintering process without any special technique. The electrical properties of NKNLT ceramics were investigated as a function of Li2O concentration. When the sample sintered at 1050 oC for 4 h with the addition of 1 mol% Li2O, electro-mechanical coupling factor (kP) and piezoelectric coefficient (d33) were found to reach the highest values of 0.42 and 260 pC/N, respectively.