NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.15 [2008] >
IJEMS Vol.15(2) [April 2008] >

Title: Electrical responses of Pb₂Sb₃RTi₅O₁₈ (R  La, Nd, Sm, Gd, Dy) ceramics
Authors: Suman, C K
Prasad, K
Choudhary, R N P
Keywords: Phase transition
Transition temperature
X-ray diffraction
dc resistivity
Issue Date: Apr-2008
Publisher: CSIR
Abstract: Single-phase orthorhombic tungsten bronze ceramics of Pb₂Sb₃RTi₅O₁₈ (R  La, Nd, Sm, Gd, Dy) are prepared via high temperature solid-state reaction method. The values of cell parameters phase transition temperature and activation energy are found to depend on rare earth ion content. These materials have low dielectric constant, low loss and high resistivity. The samples showed dielectric relaxation which are found to be of non Debye type. The nature of variation of resistivity with temperature and Nyquist plots suggested the NTCR character. The ac conductivity is found to obey the universal power law and supports the correlated barrier hopping of the carriers as conduction mechanism.
Page(s): 157-162
ISSN: 0971-4588
Source:IJEMS Vol.15(2) [April 2008]

Files in This Item:

File Description SizeFormat
IJEMS 15(2) 157-162.pdf265.87 kBAdobe PDFView/Open
 Current Page Visits: 82 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 167888 since 01-Sep-2015  Last updated on 29-Jun-2016Webmaster: