Dielectric properties of strontium iron holmium niobate ceramics

Dielectric properties of strontium iron holmium niobate ceramics

Strontium iron holmium niobate (Sr(Fe1-xHox)0.5Nb0.5O3) ceramics were synthesized via a solid-state reaction technique. The undoped ceramic showed an orthorhombic phase, but it transformed to a pseudocubic phase for higher Ho concentrations. A low solubility limit of Ho in SFN caused a formation of...

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Main Authors: K. Sanjoom, T. Tunkasiri, K. Pengpat, S. Eitssayeam, G. Rujijanagul
Format: Journal
Published: 2018
Subjects:
Chemical Engineering
Materials Science
Online Access:https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875736132&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/52341
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-523412018-09-04T09:30:08Z Dielectric properties of strontium iron holmium niobate ceramics K. Sanjoom T. Tunkasiri K. Pengpat S. Eitssayeam G. Rujijanagul Chemical Engineering Materials Science Strontium iron holmium niobate (Sr(Fe1-xHox)0.5Nb0.5O3) ceramics were synthesized via a solid-state reaction technique. The undoped ceramic showed an orthorhombic phase, but it transformed to a pseudocubic phase for higher Ho concentrations. A low solubility limit of Ho in SFN caused a formation of second phase for the x=0.15 ceramic. Dielectric behavior of undoped ceramic exhibited high dielectric constant over a wide temperature range. However, the doping shifted this region to a higher temperature. The doping also shifted the peak of dielectric loss to a higher temperature. Activation energy of dielectric relaxation increased with increasing Ho concentration. In addition, complex impedance analysis was applied to determine the behaviors of grain boundary and grain after doping. © 2012 Elsevier Ltd and Techna Group S.r.l. 2018-09-04T09:23:44Z 2018-09-04T09:23:44Z 2013-05-01 Journal 02728842 2-s2.0-84875736132 10.1016/j.ceramint.2012.10.067 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875736132&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/52341
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Chemical Engineering
Materials Science
spellingShingle Chemical Engineering
Materials Science
K. Sanjoom
T. Tunkasiri
K. Pengpat
S. Eitssayeam
G. Rujijanagul
Dielectric properties of strontium iron holmium niobate ceramics
description Strontium iron holmium niobate (Sr(Fe1-xHox)0.5Nb0.5O3) ceramics were synthesized via a solid-state reaction technique. The undoped ceramic showed an orthorhombic phase, but it transformed to a pseudocubic phase for higher Ho concentrations. A low solubility limit of Ho in SFN caused a formation of second phase for the x=0.15 ceramic. Dielectric behavior of undoped ceramic exhibited high dielectric constant over a wide temperature range. However, the doping shifted this region to a higher temperature. The doping also shifted the peak of dielectric loss to a higher temperature. Activation energy of dielectric relaxation increased with increasing Ho concentration. In addition, complex impedance analysis was applied to determine the behaviors of grain boundary and grain after doping. © 2012 Elsevier Ltd and Techna Group S.r.l.
format Journal
author K. Sanjoom
T. Tunkasiri
K. Pengpat
S. Eitssayeam
G. Rujijanagul
author_facet K. Sanjoom
T. Tunkasiri
K. Pengpat
S. Eitssayeam
G. Rujijanagul
author_sort K. Sanjoom
title Dielectric properties of strontium iron holmium niobate ceramics
title_short Dielectric properties of strontium iron holmium niobate ceramics
title_full Dielectric properties of strontium iron holmium niobate ceramics
title_fullStr Dielectric properties of strontium iron holmium niobate ceramics
title_full_unstemmed Dielectric properties of strontium iron holmium niobate ceramics
title_sort dielectric properties of strontium iron holmium niobate ceramics
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84875736132&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/52341
_version_ 1681423933422698496

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