Impedance Spectra and Ferroelectric Properties of Bismuth Titanate Ceramics by Nd3+/V5+ Substitution


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The ferroelectricity of Bi3.25Nd0.75Ti3O12 (BNT), and Bi3.25Nd0.75Ti2.97V0.03O12 (BNTV) ceramics prepared at 1100°C by a conventional ceramic technique was investigated. These ceramics possess random-oriented polycrystalline structure. The remanent polarization (Pr) and coercive field (Ec) of the BNT ceramics are 16 µC/cm2 and 65kV/cm, respectively. Furthermore, V substitution improves the Pr value of the BNTV ceramics up to 23 μC/cm2, which is much larger than that of the BNT ceramics. Therefore, co-sustitution of Nd and V in Bi4Ti3O12 ceramic is effective for the improvement of its ferroelectricity.



Edited by:

Jin Hu, Nanchun Chen and Cheng Zhang




M. Chen et al., "Impedance Spectra and Ferroelectric Properties of Bismuth Titanate Ceramics by Nd3+/V5+ Substitution", Advanced Materials Research, Vol. 624, pp. 174-177, 2013

Online since:

December 2012




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