论文信息 - Microstructure and Piezoelectric Properties of Lead-Free Niobate Ceramics

Microstructure and Piezoelectric Properties of Lead-Free Niobate Ceramics

Recently perovskite niobates were paid much attention as lead-free piezoelectric materials to replace lead-based Pb(Zr,Ti)O3 or relaxor systems which cause much environmental problems. Piezoelectric and ferroelectric properties of electromechanical coupling coefficient and quality factor in (K0.5Na0.5)NbO3 ceramic were studied. Dielectric properties of niobates including Ag ion; AgNbO3 and (Ag0.5Na0.5)NbO3 were studied. Phase transitions and dielectric relaxations were studied from the frequency and temperature dependent dielectric constant measurements. The piezoelectric properties were hardly observed in silver niobate systems.

[1] H. Beige,et al. Electrostrictive effect in lead-free relaxor K0.5Na0.5NbO3–SrTiO3 ceramic system , 2005 .

[2] Masato Matsubara,et al. Piezoelectric properties of (K0.5Na0.5)(Nb1−xTax)O3−K5.4CuTa10O29 ceramics , 2005 .

[3] R. Carius,et al. Dielectric and piezoelectric properties of MeTiO3 (Me = Ba and Sr) modified (K, Na)NbO3 , 2005 .

[4] Yasuyoshi Saito,et al. Lead-free piezoceramics , 2004, Nature.

[5] K. Kakimoto,et al. Solid-Solution Structure and Piezoelectric Property of KNbO3 Ceramics Doped with Small Amounts of Elements , 2004 .

[6] Yiping Guo,et al. Structure and Electrical Properties of Lead-Free (Na0.5K0.5)NbO3-BaTiO3 Ceramics , 2004 .

[7] T. Song,et al. Dielectric and Piezoelectric Properties of Nonstoichiometric SrBi2Ta2O9 and SrBi2Nb2O9 Ceramics , 2004 .

[8] Lingxia Li,et al. Temperature-Stable Super High Permittivity Dielectric Ceramics Based on (Ag1 − xNax)(Nb1 − yTay)O3 System , 2003 .

[9] J. Koh. Processing and Properties of Ferroelectric Ag(Ta,Nb)O3 Thin Films , 2002 .

[10] A. Grishin,et al. Ag(Ta, Nb)O3 thin-film low-loss variable interdigital capacitors , 2001 .

[11] A. Kania,et al. High-frequency dielectric spectra of AgTaO3-AgNbO3 mixed ceramics , 1995 .

[12] G. Shirane,et al. Phase Transitions in Ferroelectric KNbO 3 , 1954 .