Effect of Processing on Synthesis and Dielectric Behavior of Bismuth Sodium Titanate Ceramics
Joint Authors
Pal, Vijayeta
Thakur, O. P.
Dwivedi, R. K.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-31
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
An effort has been made to synthesize polycrystalline (Bi1−xLax)0.5Na0.5TiO3 (abbreviated as BLNT) system with compositions x = 0, 0.02, and 0.04 by novel semiwet technique.
Preparation of A-site oxides of BLNT for composition x = 0 was optimized using two precursor solutions such as ethylene glycol and citric acid.
The XRD patterns revealed that the sample prepared by ethylene glycol precursor solution has single phase perovskite structure with a rhombohedral symmetry at RT as compared to the sample prepared by citric acid.
Ethylene glycol precursor has been found to play a significant role in the crystallization, phase transitions, and electrical properties.
The studies on structure, phase transitions, and dielectric properties for all the samples have been carried out over the temperature range from RT to 450°C at 100 kHz frequency.
It has been observed that two phase transitions (i) ferroelectric to antiferroelectric and (ii) antiferroelectric to paraelectric occur in all the samples.
All samples exhibit a modified Curie-Weiss law above Tc.
A linear fitting of the modified Curie-Weiss law to the experimental data shows diffuse-type transition.
The dielectric as well as ferroelectric properties of BLNT ceramics have been found to be improved with the substitution of La elements.
American Psychological Association (APA)
Pal, Vijayeta& Dwivedi, R. K.& Thakur, O. P.. 2012. Effect of Processing on Synthesis and Dielectric Behavior of Bismuth Sodium Titanate Ceramics. Journal of Ceramics،Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-458416
Modern Language Association (MLA)
Pal, Vijayeta…[et al.]. Effect of Processing on Synthesis and Dielectric Behavior of Bismuth Sodium Titanate Ceramics. Journal of Ceramics No. 2013 (2013), pp.1-6.
https://search.emarefa.net/detail/BIM-458416
American Medical Association (AMA)
Pal, Vijayeta& Dwivedi, R. K.& Thakur, O. P.. Effect of Processing on Synthesis and Dielectric Behavior of Bismuth Sodium Titanate Ceramics. Journal of Ceramics. 2012. Vol. 2013, no. 2013, pp.1-6.
https://search.emarefa.net/detail/BIM-458416
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458416