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

Abstract:

Article Preview

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.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

278-280

DOI:

10.4028/www.scientific.net/KEM.434-435.278

Citation:

Y. H. Gu et al., "Dielectric Properties of BiFeO3 Ceramics with Equal and Unequal Substitutions of Ti for Fe", Key Engineering Materials, Vols. 434-435, pp. 278-280, 2010

Online since:

March 2010

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.