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.
|Title of host publication||TMS 2021 150th Annual Meeting and Exhibition Supplemental Proceedings|
|Publisher||Springer Science and Business Media Deutschland GmbH|
|Number of pages||8|
|State||Published - 2021|
|Event||150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2021 - Pittsburgh, United States|
Duration: 15 Mar 2021 → 18 Mar 2021
|Name||Minerals, Metals and Materials Series|
|Conference||150th Annual Meeting and Exhibition of The Minerals, Metals and Materials Society, TMS 2021|
|Period||15/03/21 → 18/03/21|
Bibliographical noteFunding 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.
© 2021, The Minerals, Metals & Materials Society.
- Layered crystal structure