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Site of incorporation and solubility for Fe ions in acceptor-doped PZT ceramics

Erdem, Emre ; Eichel, Rüdiger-A. ; Fetzer, C. S. ; Dezsi, I. ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Balogh, Adam G. (2010):
Site of incorporation and solubility for Fe ions in acceptor-doped PZT ceramics.
In: Journal of Applied Physics, 107 (5), pp. 054109. AIP, ISSN 0021-8979,
DOI: 10.1063/1.3327436,
[Article]

Abstract

Pb(Zr0.54Ti0.46)O3 ceramic samples with composition near the morphotropic phase boundary have been investigated. Samples have been nominally doped with 0.5 and 1.0 mol % Fe atoms and studied by electron paramagnetic resonance (EPR), transmission electron microscopy (TEM), and Mössbauer spectroscopy. EPR and Mössbauer measurements indicated the creation of Fe–O vacancy dipoles in the grains and a solubility limit of less than 1 mol % for the Fe atoms in the PZT lattice. TEM studies revealed a dense sample with homogeneous microstructure and a second crystalline phase at the triple pockets with Pb excess. In the case of the 1 mol % Fe:PZT sample, beside the components Pb, Zr, and Ti even Fe was determined in these pockets with higher concentration as in the grains.

Item Type: Article
Erschienen: 2010
Creators: Erdem, Emre ; Eichel, Rüdiger-A. ; Fetzer, C. S. ; Dezsi, I. ; Lauterbach, Stefan ; Kleebe, Hans-Joachim ; Balogh, Adam G.
Title: Site of incorporation and solubility for Fe ions in acceptor-doped PZT ceramics
Language: English
Abstract:

Pb(Zr0.54Ti0.46)O3 ceramic samples with composition near the morphotropic phase boundary have been investigated. Samples have been nominally doped with 0.5 and 1.0 mol % Fe atoms and studied by electron paramagnetic resonance (EPR), transmission electron microscopy (TEM), and Mössbauer spectroscopy. EPR and Mössbauer measurements indicated the creation of Fe–O vacancy dipoles in the grains and a solubility limit of less than 1 mol % for the Fe atoms in the PZT lattice. TEM studies revealed a dense sample with homogeneous microstructure and a second crystalline phase at the triple pockets with Pb excess. In the case of the 1 mol % Fe:PZT sample, beside the components Pb, Zr, and Ti even Fe was determined in these pockets with higher concentration as in the grains.

Journal or Publication Title: Journal of Applied Physics
Journal volume: 107
Number: 5
Publisher: AIP
Uncontrolled Keywords: Ceramics, crystal microstructure, doping, iron, lead compounds, Mossbauer effect, paramagnetic resonance, solubility, transmission electron microscopy, vacancies (crystal)
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Geo-Material-Science
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Material Analytics
DFG-Collaborative Research Centres (incl. Transregio)
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B1: EPR-Investigations of defects in ferroelectric ceramic material
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B2: Investigations of the defect structure and diffusion in ferroelectric materials
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > B - Characterisation > Subproject B3: Structure Characterization of Piezoelectric Ceramics With Respect to Electrical Fatigue
Date Deposited: 17 Mar 2010 15:50
DOI: 10.1063/1.3327436
Additional Information:

SFB 595 Cooperation B1, B2, B3

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