Table of Contents
International Scholarly Research Notices
Volume 2014, Article ID 683986, 6 pages
http://dx.doi.org/10.1155/2014/683986
Research Article

Microwave Studies of Environmental Friendly Ferroelectrics

1Department of Engineering Physics, KLE Institute of Technology, Hubli 580030, India
2Thick and Thin Film Device Laboratory, Department of Physics, Shivaji University, Kolhapur 416004, India

Received 19 May 2014; Revised 2 September 2014; Accepted 8 September 2014; Published 30 October 2014

Academic Editor: George Kyriacou

Copyright © 2014 S. N. Mathad and Vijaya Puri. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The structural and microwave studies of lead-free barium niobates ceramics prepared by the high temperatures solid state reaction technique are reported. The structural parameters such as the lattice constants, average crystallite size (D), texture coefficients (TC), dislocation density, and microstrain have been determined using X-ray diffraction data. Surface morphological studies were carried out using scanning electron microscopy (SEM) technique. The strong absorption bands at ~816 cm−1, 641 cm−1, and 482 cm−1 are associated with the coupling mode between Nb–O stretching modes observed in FTIR studies. The electromagnetic transmittance, absorption, studies of barium niobates in the X band frequency range frequencies using waveguide reflectometer technique are reported.