Effect of Strontium Doping on the Structural, Morphological, and Dielectric Properties of PZT Ceramics

Margarete Soares da Silva; Rafael Gomes Dias; Eliane F. de Souza; Mário Cilense; Maria A. Zaghete; Alberto A. Cavalheiro

doi:10.4028/www.scientific.net/MSF.869.8

Paper Titles

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Pure and Doped SrTiO₃ Powders Obtained by Ultrasonic Synthesis
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Effect of Strontium Doping on the Structural, Morphological, and Dielectric Properties of PZT Ceramics
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Study on the Piezoelectric Behavior and Structural Changes of Strontium Doped PZT Ceramics
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Structural and Microstructural Properties of Si-C and Si-C-B Powders Obtained by High-Energy Ball Milling
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Nondestructive Analysis of Bi2212 Bulk Superconducting Ceramics in the C-Axis Direction
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Synthesis, Characterization and Photoluminescent Properties of ZrO₂ Nanocrystals
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Obtaining of Ceramic Sensor Devices for Soil Humidity Measurements in Different Climatic Conditions
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HomeMaterials Science ForumMaterials Science Forum Vol. 869Effect of Strontium Doping on the Structural,...

Effect of Strontium Doping on the Structural, Morphological, and Dielectric Properties of PZT Ceramics

Abstract:

Strontium-modified lead zirconate titanate ceramics was prepared by the polymeric precursor method. The effect of Pb (II) substitution by Sr (II) in A site of the perovskite structure at molar percentages of 0.0, 0.2, 0.4 and 0.6 mol% was investigated through XRD and Rietveld method. The increasing of strontium amount displaces the morphotropic phase boundary toward to tetragonal phase and that results can be associated to the tetragonal lattice expansion besides the rhombohedral opposite phenomenon. The effect of strontium substitution on the dielectric properties for sintered ceramics is also investigated and showed the strontium substitution leads to reduction of weight loss and increasing of density for sintered ceramic. The Kc and Tc oscillates as function of ceramic morphology and is not possible to verify the existence of conductive intergrains defects by loss tangent curves. An intrinsic event can be occurring because considerable lattice distortion was verified in tetragonal and rhombohedral structures for powder samples.

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21st Brazilian Conference on Materials Science and Engineering

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Materials Science Forum (Volume 869)

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8-12

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https://doi.org/10.4028/www.scientific.net/MSF.869.8

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Online since:

August 2016

Authors:

Margarete Soares da Silva*, Rafael Gomes Dias, Eliane F. de Souza, Mário Cilense, Maria A. Zaghete, Alberto A. Cavalheiro

Keywords:

Microstructure, PZT, Sr-Doped

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