Hydrothermal Synthesis of Na(Nb1-xTax)O3 Powder for Fabrication of Lead-Free Piezoelectric Ceramics

Kong Jun Zhu; Jin Hao  Qiu; Koji Kajiyoshi; Kazumichi Yanagisawa

doi:10.4028/www.scientific.net/KEM.368-372.1899

Paper Titles

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

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

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

Abstract:

Hydrothermal method was used to synthesize the Na(TaxNb1-x)O3 (x = 0.1-0.5) powders with the addition of isopropanol. The phases of the obtained powders were confirmed by XRD. The morphology and particle size were observed by FE-SEM. The specific surface areas were measured by multipoint BET technique. The presence of water and organic group were determined by (FT-IR) spectroscopy. The results indicate that the pure Na(TaxNb1-x)O3 (x = 0.1-0.5) powders with perovskite structure and fine particles were successfully synthesized by hydrothermal method at 240 °C for 8 hours with the addition of isopropanol.