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Paper Titles
The Influence of Annealing Temperature on the Characteristics of 0.95 (Na0.5Bi0.5)TiO3-0.05 BaTiO3 Thin Films
p.263
The Influence of Oxygen Plasma Treatment on the Electrical Properties of (Ba0.7Sr0.3)(Ti0.9Zr0.1)O3 Thin Films
p.267
The Electrical and Physical Properties of (Ba0.7Sr0.3)(Ti0.9Zr0.1)O3 Thin Films under Conventional Annealing Process
p.271
Fabrication and Characterization of Sr0.7Ca0.3TiO3 Substrates Using Aqueous Tape Casting Process
p.275
Dielectric Properties of BiFeO3 Ceramics with Equal and Unequal Substitutions of Ti for Fe
p.278
Ferroelectric Properties and Microstructures of Pr6O11-Doped Bi4Ti3O12 Thin Films
p.281
Dielectric Characteristics of the Lead-Free Piezoelectric Ceramics K0.50Na0.50Nb0.95Ta0.05O3
p.285
The Influence of Annealing Treatment on Physics and Electrical Characteristics of Ba(Zr0.1Ti0.9)O3 Ferroelectric Films on ITO/Glass Substrate
p.289
Extrinsic Scaling Effects on the Dielectric Response of Grained BaTiO3 Films
p.293

Dielectric Properties of BiFeO3 Ceramics with Equal and Unequal Substitutions of Ti for Fe

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Abstract:

BiFeO3, BiFe0.9Ti0.1O3 and BiFe0.9Ti0.05O3 ceramics were prepared by solid state reactions and were compared in electrical and dielectric properties. The resistivity of BiFe0.9Ti0.05O3 was 1.3×1012 Ω cm, which was about two and a half orders of magnitude higher than that of BiFeO3. and three times higher than that of BiFe0.9Ti0.1O3. The dielectric loss of BiFe0.9Ti0.05O3 was 0.1 and 0.02 at 100Hz and 1MHz, respectively. These phenomena can be explained base on the decrease of oxygen vacancies VO•• and defect complexes between the ferrum vacancies VFe and oxygen vacancies VO•• in the ceramics.

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Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

278-280

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.434-435.278

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Online since:

March 2010

Authors:

Yan Hong Gu, Wan Ping Chen, Ming Jian Ding, Jian Quan Qi

Keywords:

BiFeO3, Electrical Properties, Substitution

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© 2010 Trans Tech Publications Ltd. All Rights Reserved

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