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Journal of Materials Science: Materials in Electronics

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01-11-2009

Effects of Nb⁵⁺ doping on sintering and electrical properties of lead-free (Bi_0.5Na_0.5)TiO₃ ceramics

Authors: Ruzhong Zuo, Hongqiang Wang, Bing Ma, Longtu Li

Published in: Journal of Materials Science: Materials in Electronics | Issue 11/2009

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Abstract

The Nb⁵⁺ doped (Bi_0.5Na_0.5)TiO₃ (BNT) ceramics were manufactured by a conventional solid state reaction method. The influence of Nb⁵⁺ doping on the sintering, microstructure and various electrical properties of BNT ceramics was investigated. The results of X-ray diffraction show that the solubility limit of Nb⁵⁺ in the BNT lattice is less than 3%. Additionally, Nb⁵⁺ doping produces significant effects on the densification and grain growth of BNT ceramics. Various electrical properties of BNT ceramics are obviously changed with doping a small amount of Nb⁵⁺. The ferroelectric and piezoelectric properties display enhanced values at a low doping level. The formation of A-site vacancies is considered as the reason for the changed ferroelectric and electromechanical behavior.

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Title: Effects of Nb5+ doping on sintering and electrical properties of lead-free (Bi0.5Na0.5)TiO3 ceramics
Authors: Ruzhong Zuo
Hongqiang Wang
Bing Ma
Longtu Li
Publication date: 01-11-2009
Publisher: Springer US
Published in: Journal of Materials Science: Materials in Electronics / Issue 11/2009
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI: https://doi.org/10.1007/s10854-008-9840-9

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