Relaxations in Ba 2BiTaO 6 ceramics investigated by impedance and electric modulus spectroscopies
Document Type
Article
Publication Date
3-1-2012
Abstract
Impedance spectroscopy analysis of the dielectric properties of a Ba 2BiTaO 6 ceramic was performed in the temperature range from room temperature to 500 K. The sample was prepared using conventional solid state synthesis under air and the X-ray diffraction shows the presence of Ba 5Ta 4O 15 as a minor secondary phase (0.09%). The impedance data clearly show contributions of the grain and grain boundary. The results indicate that the conduction in Ba 2BiTaO 6 is due to hopping of oxygen vacancies and that the impurities not influence the conduction mechanism. © 2011 Elsevier Ltd. All rights reserved.
Publication Title
Materials Research Bulletin
Volume
47
Issue
3
First Page
878
Last Page
882
Digital Object Identifier (DOI)
10.1016/j.materresbull.2011.11.036
ISSN
00255408
Citation Information
Rodrigues, Paschoal, C. W. de A., Silva, E. N., Mince, K. A., & Lufaso, M. W. (2012). Relaxations in Ba{sub 2}BiTaO{sub 6} ceramics investigated by impedance and electric modulus spectroscopies. Materials Research Bulletin, 47(3). https://doi.org/10.1016/J.MATERRESBULL.2011.11.036