Effect of (Ba1-xLax)TiO3 and (Pb1-xLax)TiO3 dopants in optical and dielectric properties of PMN-based transparent ceramics

M. Ghasemifard, M. Ghamari, S. Samarin, J. F. Williams

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Abstract

A relaxor electroceramic 0.35Pb(Mg1/3Nb2/3)O3-0.35(Pb1-1.5xLax)TiO3-0.30-(Ba1-1.5xLax)TiO3 (PMN-PLT-BLT) with x = 0.25, 0.50 and 0.75 was synthesized using the two combination methods of auto-combination and hot-pressing. Characterization of the crystal phase, microstructure, optical and dielectric properties of PMN-PLT-BLT was made primarily by X-ray diffraction and TEM and SEM methods. The pure perovskite crystals (rhombohedral and tetragonal) prepared at 850°C for 2 h calcination were revealed by using X-ray diffraction. The average optical transmittance of these electroceramics in the range between 450 nm and 900 nm is higher than 60% while in the IR region reached 100%. The PMN-PLT-BLT with x = 0.75 displays the highest transparency around 70% near 1100 nm. The microstructures and dielectric measurements show that these three electroceramics have densities of about 98.8% and exhibit a normal relaxation characteristic.

Original languageEnglish
Article number1950408
JournalModern Physics Letters B
DOIs
Publication statusE-pub ahead of print - 22 Oct 2019

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dielectric properties
ceramics
optical properties
microstructure
hot pressing
diffraction
roasting
crystals
transmittance
x rays
transmission electron microscopy
scanning electron microscopy

Cite this

@article{2a55ea2f4ccd4475910a91f2faf95062,
title = "Effect of (Ba1-xLax)TiO3 and (Pb1-xLax)TiO3 dopants in optical and dielectric properties of PMN-based transparent ceramics",
abstract = "A relaxor electroceramic 0.35Pb(Mg1/3Nb2/3)O3-0.35(Pb1-1.5xLax)TiO3-0.30-(Ba1-1.5xLax)TiO3 (PMN-PLT-BLT) with x = 0.25, 0.50 and 0.75 was synthesized using the two combination methods of auto-combination and hot-pressing. Characterization of the crystal phase, microstructure, optical and dielectric properties of PMN-PLT-BLT was made primarily by X-ray diffraction and TEM and SEM methods. The pure perovskite crystals (rhombohedral and tetragonal) prepared at 850°C for 2 h calcination were revealed by using X-ray diffraction. The average optical transmittance of these electroceramics in the range between 450 nm and 900 nm is higher than 60{\%} while in the IR region reached 100{\%}. The PMN-PLT-BLT with x = 0.75 displays the highest transparency around 70{\%} near 1100 nm. The microstructures and dielectric measurements show that these three electroceramics have densities of about 98.8{\%} and exhibit a normal relaxation characteristic.",
keywords = "auto-combustion, dielectric constant, optical properties, PMN-PT transparent ceramic, relaxor behavior",
author = "M. Ghasemifard and M. Ghamari and S. Samarin and Williams, {J. F.}",
year = "2019",
month = "10",
day = "22",
doi = "10.1142/S0217984919504086",
language = "English",
journal = "Modern Physics Letters B",
issn = "0217-9849",
publisher = "World Scientific Publishing",

}

TY - JOUR

T1 - Effect of (Ba1-xLax)TiO3 and (Pb1-xLax)TiO3 dopants in optical and dielectric properties of PMN-based transparent ceramics

AU - Ghasemifard, M.

AU - Ghamari, M.

AU - Samarin, S.

AU - Williams, J. F.

PY - 2019/10/22

Y1 - 2019/10/22

N2 - A relaxor electroceramic 0.35Pb(Mg1/3Nb2/3)O3-0.35(Pb1-1.5xLax)TiO3-0.30-(Ba1-1.5xLax)TiO3 (PMN-PLT-BLT) with x = 0.25, 0.50 and 0.75 was synthesized using the two combination methods of auto-combination and hot-pressing. Characterization of the crystal phase, microstructure, optical and dielectric properties of PMN-PLT-BLT was made primarily by X-ray diffraction and TEM and SEM methods. The pure perovskite crystals (rhombohedral and tetragonal) prepared at 850°C for 2 h calcination were revealed by using X-ray diffraction. The average optical transmittance of these electroceramics in the range between 450 nm and 900 nm is higher than 60% while in the IR region reached 100%. The PMN-PLT-BLT with x = 0.75 displays the highest transparency around 70% near 1100 nm. The microstructures and dielectric measurements show that these three electroceramics have densities of about 98.8% and exhibit a normal relaxation characteristic.

AB - A relaxor electroceramic 0.35Pb(Mg1/3Nb2/3)O3-0.35(Pb1-1.5xLax)TiO3-0.30-(Ba1-1.5xLax)TiO3 (PMN-PLT-BLT) with x = 0.25, 0.50 and 0.75 was synthesized using the two combination methods of auto-combination and hot-pressing. Characterization of the crystal phase, microstructure, optical and dielectric properties of PMN-PLT-BLT was made primarily by X-ray diffraction and TEM and SEM methods. The pure perovskite crystals (rhombohedral and tetragonal) prepared at 850°C for 2 h calcination were revealed by using X-ray diffraction. The average optical transmittance of these electroceramics in the range between 450 nm and 900 nm is higher than 60% while in the IR region reached 100%. The PMN-PLT-BLT with x = 0.75 displays the highest transparency around 70% near 1100 nm. The microstructures and dielectric measurements show that these three electroceramics have densities of about 98.8% and exhibit a normal relaxation characteristic.

KW - auto-combustion

KW - dielectric constant

KW - optical properties

KW - PMN-PT transparent ceramic

KW - relaxor behavior

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