Some effects of different additives on dielectric and piezoelectric properties of (Bi 1/2Na 1/2)TiO 3–BaTiO 3 morphotropic-phase-boundary composition

Microstructure, dielectric and piezoelectric properties of (Bi 1/2Na 1/2)TiO 3–6BaTiO 3 doped with Nb 5+, Co 3+ or La 3+ were studied for a candidate as lead-free piezoelectric ceramics. The doping with Co 3+ enhanced piezoelectric coefficient ( d 33) and lower dielectric loss. The Co 3+-doped syste...

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Bibliographic Details
Published inMaterials letters Vol. 58; no. 7; pp. 1194 - 1198
Main Authors Li, Hui-dong, Feng, Chu-de, Yao, Wen-long
Format Journal Article
LanguageEnglish
Published Elsevier B.V 2004
Subjects
Bismuth sodium titanate
Diffuse phase transition
Lead-free piezoelectric ceramics
Relaxation ferroelectrics
Diffuse phase transition
Lead-free piezoelectric ceramics
Relaxation ferroelectrics
Bismuth sodium titanate
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Summary:Microstructure, dielectric and piezoelectric properties of (Bi 1/2Na 1/2)TiO 3–6BaTiO 3 doped with Nb 5+, Co 3+ or La 3+ were studied for a candidate as lead-free piezoelectric ceramics. The doping with Co 3+ enhanced piezoelectric coefficient ( d 33) and lower dielectric loss. The Co 3+-doped system's intermediate phase transition almost disappeared.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2003.08.034