-
- Home
- Journals
- Bulletin of Materials Science
- Volume 22
- Issue 4
-
Studies of structural and dielectric properties of Ba5BiTi3Nb7O30 ceramics
H Sharma Kiran Kumari S N Giri
Oxide Materials Volume 22 Issue 4 June 1999 pp 757-759
-
-
Fulltext
Click here to view fulltext PDF
Permanent link:
https://www.ias.ac.in/article/fulltext/boms/022/04/0757-0759 -
Keywords
Tungsten bronze structure ;X-ray diffraction ;dielectric constant ;phase transition -
Abstract
The polycrystalline samples of Ba5BiTi3Nb7O30 (hereafter BBTN) belonging to ferroelectric oxide family of tungsten bronze structure were prepared by high temperature solid-state reaction method. Preliminary X-ray analysis of the samples provided the lattice parametersa=11·9331 Å,b=14·9684 Å, andc=7·0193 Å, and also formation of a single-phase orthorhombic structure at room temperature (303 K). Detailed studies of dielectric constant (ε) and loss (tanδ) as a function of frequency (500 Hz to 10 KHz) at room temperature and also as a function of temperature (liquid nitrogen to 160°C) show the dielectric anomaly and structural phase transition at 16·8°C.
-
Author Affiliations
H Sharma1 Kiran Kumari1 2 S N Giri1
- Department of Physics, Veer Kunwar Singh University, Arrah - 802 301, India
- Department of Physics, Dr S K S M College, Motihari - 845 401, India
-
Dates
- Published
- June 1999
- Manuscript received
- 27 June 1999
- Manuscript revised
- 31 March 1999
-
-
Bulletin of Materials Science
Volume 46, 2023
All articles
Continuous Article Publishing mode
-
Bulletin of Materials Science | News
-
Dr Shanti Swarup Bhatnagar for Science and Technology
Posted on October 12, 2020Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
Chemical Sciences 2020Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
Physical Sciences 2020 -
Editorial Note on Continuous Article Publication
Posted on July 25, 2019Click here for Editorial Note on CAP Mode
-