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

Aksel, Elena ; Foronda, Humberto ; Calhoun, Kyle A. ; Jones, Jacob L. ; Schaab, Silke ; Granzow, Torsten (2010):
Processing and properties of Na0.5Bi0.5TiO3 piezoelectric ceramics modified with La, Mn AND Fe.
In: Functional Materials Letters, 03 (01), pp. 45-48. ISSN 1793-6047,
[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 ; Foronda, Humberto ; Calhoun, Kyle A. ; Jones, Jacob L. ; Schaab, Silke ; 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
Journal 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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