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Giant electric-field-induced strains in lead-free ceramics for actuator applications – status and perspective

Jo, Wook and Dittmer, Robert and Acosta, Matias and Zang, Jiadong and Groh, Claudia and Sapper, Eva and Wang, Ke and Rödel, Jürgen (2012):
Giant electric-field-induced strains in lead-free ceramics for actuator applications – status and perspective.
In: Journal of Electroceramics, ISSN 1385-3449, [Online-Edition: http://dx.doi.org/10.1007/s10832-012-9742-3],
[Article]

Abstract

In response to the current environmental regulations against the use of lead in daily electronic devices, a number of investigations have been performed worldwide in search for alternative piezoelectric ceramics that can replace the market-dominating lead-based ones, representatively Pb(Zr x Ti1-x )O3 (PZT)-based solid solutions. Selected systems of potential importance such as chemically modified and/or crystallographically textured (K, Na)NbO3 and (Bi1/2Na1/2)TiO3-based solid solutions have been developed. Nevertheless, only few achievements have so far been introduced to the marketplace. A recent discovery has greatly extended our tool box for material design by furnishing (Bi1/2Na1/2)TiO3-based ceramics with a reversible phase transition between an ergodic relaxor state and a ferroelectric with the application of electric field. This paired the piezoelectric effect with a strain-generating phase transition and extended opportunities for actuator applications in a completely new manner. In this contribution, we will present the status and perspectives of this new class of actuator ceramics, aiming at covering a wide spectrum of topics, i.e., from fundamentals to practice.

Item Type: Article
Erschienen: 2012
Creators: Jo, Wook and Dittmer, Robert and Acosta, Matias and Zang, Jiadong and Groh, Claudia and Sapper, Eva and Wang, Ke and Rödel, Jürgen
Title: Giant electric-field-induced strains in lead-free ceramics for actuator applications – status and perspective
Language: English
Abstract:

In response to the current environmental regulations against the use of lead in daily electronic devices, a number of investigations have been performed worldwide in search for alternative piezoelectric ceramics that can replace the market-dominating lead-based ones, representatively Pb(Zr x Ti1-x )O3 (PZT)-based solid solutions. Selected systems of potential importance such as chemically modified and/or crystallographically textured (K, Na)NbO3 and (Bi1/2Na1/2)TiO3-based solid solutions have been developed. Nevertheless, only few achievements have so far been introduced to the marketplace. A recent discovery has greatly extended our tool box for material design by furnishing (Bi1/2Na1/2)TiO3-based ceramics with a reversible phase transition between an ergodic relaxor state and a ferroelectric with the application of electric field. This paired the piezoelectric effect with a strain-generating phase transition and extended opportunities for actuator applications in a completely new manner. In this contribution, we will present the status and perspectives of this new class of actuator ceramics, aiming at covering a wide spectrum of topics, i.e., from fundamentals to practice.

Journal or Publication Title: Journal of Electroceramics
Uncontrolled Keywords: Giant electric-field-induced strain – Lead-free piezoceramics – Incipient piezoelectric – Relaxor ferroelectric – Actuator – Bismuth sodium titanate – Electric-field-induced phase transition
Divisions: 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 > A - Synthesis > Subproject A1: Manufacturing of ceramic, textured actuators with high strain
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
11 Department of Materials and Earth Sciences > Material Science
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres > CRC 595: Electrical fatigue > A - Synthesis
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
11 Department of Materials and Earth Sciences
Zentrale Einrichtungen
DFG-Collaborative Research Centres (incl. Transregio) > Collaborative Research Centres
DFG-Collaborative Research Centres (incl. Transregio)
Date Deposited: 01 Jun 2012 11:29
Official URL: http://dx.doi.org/10.1007/s10832-012-9742-3
Additional Information:

SFB 595 Cooperation A1, D1

Identification Number: doi:10.1007/s10832-012-9742-3
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