Layered Ceramic Structures In1+x(Ti1/2Zn1/2)1-xO3(ZnO)m (m = 2, 4 and 6; x = 0.5): Synthesis, Phase Stability and Dielectric Properties

Victor Emmanuel Alvarez Montaño*, Subhash Sharma, Francisco Brown, Alejandro Durán

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

New ceramic materials with layered crystal structures and chemical formula In1+x(Ti1/2Zn1/2)1-xO3(ZnO)m (x = 0.5; m = 2, 4 and 6), here named ITZO-II, ITZO-IV and ITZO-VI, have been synthesized by solid-state reaction method. The phase characterization, phase stability with temperature and their microstructure have been studied by X-ray powder diffractometry (XRD) and scanning electron microscopy (SEM). The XRD showed a hexagonal single phase at 1200 °C whereas, at higher temperatures (1300 and 1400 °C), they decompose in secondary phases such as the In2Zn7O10 solid solution and starting material traces. SEM micrographs showed an increase in grain size as the temperature of sintering increases, reducing the porosity and increasing the bulk density. Here, the dielectric spectra in a wide range of temperatures and frequencies are reported. The permittivity results seem to indicate a classical paraelectric behavior in this class of layered structural ceramic compounds.

Original languageEnglish
Title of host publicationTMS 2021 150th Annual Meeting and Exhibition Supplemental Proceedings
PublisherSpringer Science and Business Media Deutschland GmbH
Pages375-382
Number of pages8
ISBN (Print)9783030652609
DOIs
StatePublished - 2021
Event150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2021 - Pittsburgh, United States
Duration: 15 Mar 202118 Mar 2021

Publication series

NameMinerals, Metals and Materials Series
Volume5
ISSN (Print)2367-1181
ISSN (Electronic)2367-1696

Conference

Conference150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2021
Country/TerritoryUnited States
CityPittsburgh
Period15/03/2118/03/21

Bibliographical note

Funding Information:
VEAM thanks to University of Sonora, Department of Chemical Engineering and Metallurgy, for the support to this work. A.D. thanks project PAPIIT-UNAM IN101919.

Publisher Copyright:
© 2021, The Minerals, Metals & Materials Society.

Keywords

  • ITZO
  • In(TiZn)O(ZnO)
  • Layered crystal structure
  • Microstructure

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