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Processing and properties of Na0.5Bi0.5TiO3 piezoelectric ceramics modified with La, Mn AND Fe

Aksel, Elena and Foronda, Humberto and Calhoun, Kyle A. and Jones, Jacob L. and Schaab, Silke and Granzow, Torsten (2010):
Processing and properties of Na0.5Bi0.5TiO3 piezoelectric ceramics modified with La, Mn AND Fe.
In: Functional Materials Letters, pp. 45-48, 03, (01), ISSN 1793-6047, [Online-Edition: http://dx.doi.org/10.1142/S1793604710000877],
[Article]

Abstract

Although a great deal of work has been done to understand defect chemistry in "soft" and "hard" PZT-based materials, there is little understanding of how defect chemistry influences the properties of lead-free piezoelectric materials. This paper reports a systematic investigation of doping on the ferroelectric and piezoelectric properties in Na0.5Bi0.5TiO3 (NBT)-based ceramics. NBT-based ceramics have been synthesized by traditional solid state routes using several different dopants including lanthanum, manganese, and iron in 1 mol%. The addition of iron and manganese lead to an increase in the coercive field (Ec), a decrease in the piezoelectric coefficient (d33), and an increase in the thermal depoling temperature (Tdepole), similar to the behavior of "hard" PZT. Lanthanum, on the other hand, leads to a decrease in the Ec, an increase in d33, and a decrease in Tdepole similar to that seen in "soft" PZT.

Item Type: Article
Erschienen: 2010
Creators: Aksel, Elena and Foronda, Humberto and Calhoun, Kyle A. and Jones, Jacob L. and Schaab, Silke and Granzow, Torsten
Title: Processing and properties of Na0.5Bi0.5TiO3 piezoelectric ceramics modified with La, Mn AND Fe
Language: English
Abstract:

Although a great deal of work has been done to understand defect chemistry in "soft" and "hard" PZT-based materials, there is little understanding of how defect chemistry influences the properties of lead-free piezoelectric materials. This paper reports a systematic investigation of doping on the ferroelectric and piezoelectric properties in Na0.5Bi0.5TiO3 (NBT)-based ceramics. NBT-based ceramics have been synthesized by traditional solid state routes using several different dopants including lanthanum, manganese, and iron in 1 mol%. The addition of iron and manganese lead to an increase in the coercive field (Ec), a decrease in the piezoelectric coefficient (d33), and an increase in the thermal depoling temperature (Tdepole), similar to the behavior of "hard" PZT. Lanthanum, on the other hand, leads to a decrease in the Ec, an increase in d33, and a decrease in Tdepole similar to that seen in "soft" PZT.

Journal or Publication Title: Functional Materials Letters
Volume: 03
Number: 01
Uncontrolled Keywords: Ferroelectric; piezoelectric; lead-free; perovskite
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Nonmetallic-Inorganic Materials
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties > Subproject D1: Mesoscopic and macroscopic fatigue in doped ferroelectric ceramics
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > D - Component properties
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 17 Jun 2011 11:38
Official URL: http://dx.doi.org/10.1142/S1793604710000877
Additional Information:

SFB 595 D1

Identification Number: doi:10.1142/S1793604710000877
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