Doping effects of Li-Sb content on the structure and electrical properties of [(Na0.5K0.5)(1) (-) (x)(Li)(x)(Sb)(x)(Nb)(1) (-) O-x(3)] lead-free piezoelectric ceramics
authors Rani, R; Sharma, S; Rai, R; Kholkin, AL
nationality International
journal MATERIALS RESEARCH BULLETIN
author keywords X-ray diffraction; Dielectric properties; Electrical properties; Piezoelectricity
keywords POTASSIUM-SODIUM NIOBATE; FREE PIEZOCERAMICS; SINTERING AID; TEMPERATURE
abstract Ceramic samples of [Na0.5K0.5](1) (-) (x)(Li)(x)(Sb)(x)(Nb)(1 - x)O-3 (NKNLS) (x = 0.04-0.06) were prepared by high temperature solid-state reaction method. X-ray diffraction analysis of the powder samples suggests the formation of a single-phase material with transformation from orthorhombic to tetragonal crystal structure with increase in Sb content. Dielectric studies show a diffuse phase transition about 100 degrees C and another phase ferroelectric-paraelectric transition at 330 degrees C. Polarization vs. electric field (P-E) hysteresis studies show maximum remanent polarization (Pr similar to 0.66 C m(-2)) for composition x = 0.05. AC conductivity in the compound increases with increase in temperature which may be attributed due to oxygen vacancies and show negative temperature coefficient of resistance (NTCR) effect. (C) 2011 Elsevier Ltd. All rights reserved.
publisher PERGAMON-ELSEVIER SCIENCE LTD
issn 0025-5408
year published 2012
volume 47
issue 2
beginning page 381
ending page 386
digital object identifier (doi) 10.1016/j.materresbull.2011.11.003
web of science category Materials Science, Multidisciplinary
subject category Materials Science
unique article identifier WOS:000300272200036
  ciceco authors
  impact metrics
journal analysis (jcr 2019):
journal impact factor 4.019
5 year journal impact factor 3.139
category normalized journal impact factor percentile 70.223
dimensions (citation analysis):
altmetrics (social interaction):



 


Sponsors

1suponsers_list_ciceco.jpg