Dielectric properties of BT-LMT mixed ceramics
authors Keburis, P; Banys, J; Grigas, J; Brilingas, A; Burtilius, T; Salak, AN; Ferreira, VM
nationality International
journal JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
author keywords barium titanate; dielectric properties; perovskites
keywords RELAXOR; BEHAVIOR
abstract Two types of ceramics of (1-x)BaTiO(3)-xLa(Mg(1/2)Ti(1/2)O(3)) with x = 0.025 (0.975BT-0.025LMT) were dielectrically investigated over the extended frequency range. Dielectric studies have been performed in the frequency range from 20Hz to 10GHz within the temperature interval of -170-230 degrees C. It is shown. that in these ceramics BT-type three phase transitions become diffuse and typical relaxor type dispersion is observed. Maxima of both imaginary and real parts of the dielectric permittivity are shifted to lower temperatures in comparison with pure BT and in the temperature ranges close to the phase transitions show a strong frequency-dependent behaviour. The distribution function of the relaxation times g(tau) was calculated from dielectric measurements for both measured ceramics-homogenous and non-homogenous. Dynamics of the phase transitions are discussed. (c) 2007 Elsevier Ltd. All rights reserved.
publisher ELSEVIER SCI LTD
issn 0955-2219
year published 2007
volume 27
issue 13-15
beginning page 4367
ending page 4370
digital object identifier (doi) 10.1016/j.jeurceramsoc.2007.02.169
web of science category Materials Science, Ceramics
subject category Materials Science
unique article identifier WOS:000248822800168
  ciceco authors
  impact metrics
journal analysis (jcr 2017):
journal impact factor 3.794
5 year journal impact factor 3.536
category normalized journal impact factor percentile 98.148
dimensions (citation analysis):
altmetrics (social interaction):



 


Apoio

1suponsers_list_ciceco.jpg