Khansur, Neamul H. ; Groh, Claudia ; Jo, Wook ; Reinhard, Christina ; Kimpton, Justin A. ; Webber, Kyle G. ; Daniels, John E. (2014)
Tailoring of unipolar strain in lead-free piezoelectrics using the ceramic/ceramic composite approach.
In: Journal of Applied Physics, 115 (12)
Article
Abstract
The electric-field-induced strain response mechanism in a polycrystalline ceramic/ceramic composite of relaxor and ferroelectric materials has been studied using in situ high-energy x-ray diffraction. The addition of ferroelectric phase material in the relaxor matrix has produced a system where a small volume fraction behaves independently of the bulk under an applied electric field. Inter- and intra-grain models of the strain mechanism in the composite material consistent with the diffraction data have been proposed. The results show that such ceramic/ceramic composite microstructure has the potential for tailoring properties of future piezoelectric materials over a wider range than is possible in uniform compositions.
| Item Type: | Article |
|---|---|
| Erschienen: | 2014 |
| Creators: | Khansur, Neamul H. ; Groh, Claudia ; Jo, Wook ; Reinhard, Christina ; Kimpton, Justin A. ; Webber, Kyle G. ; Daniels, John E. |
| Type of entry: | Bibliographie |
| Title: | Tailoring of unipolar strain in lead-free piezoelectrics using the ceramic/ceramic composite approach |
| Language: | English |
| Date: | 7 May 2014 |
| Journal or Publication Title: | Journal of Applied Physics |
| Volume of the journal: | 115 |
| Issue Number: | 12 |
| URL / URN: | http://dx.doi.org/10.1063/1.4869786 |
| Abstract: | The electric-field-induced strain response mechanism in a polycrystalline ceramic/ceramic composite of relaxor and ferroelectric materials has been studied using in situ high-energy x-ray diffraction. The addition of ferroelectric phase material in the relaxor matrix has produced a system where a small volume fraction behaves independently of the bulk under an applied electric field. Inter- and intra-grain models of the strain mechanism in the composite material consistent with the diffraction data have been proposed. The results show that such ceramic/ceramic composite microstructure has the potential for tailoring properties of future piezoelectric materials over a wider range than is possible in uniform compositions. |
| Uncontrolled Keywords: | Ceramic composites; Ceramics; Relaxor ferroelectrics; X-ray diffraction; Ferroelectric materials |
| Identification Number: | doi:10.1063/1.4869786 |
| Additional Information: | SFB 595 A1 |
| Divisions: | 11 Department of Materials and Earth Sciences > Material Science > Elektromechanik von Oxiden 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 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 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: | 07 Apr 2014 10:45 |
| Last Modified: | 07 Apr 2014 10:45 |
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