Project H – Stress Modulated Electromechanical Coupling of Lead-Free Ferroelectrics
Photoferroelectrics possess both ferroelectricity as well as light sensitivity, which is interesting for multisource energy harvesting. Despite their potential importance, there remain a number of open questions that will be addressed in this project. Therefore, the aim of this project is to experimentally investigate the influence of stress on photoferroelectrics. Here, compositional band gap tuning will be accomplished through data driven automated powder dosing system to carefully control the composition over a widely material range. Following this, a combination of macroscopic and stress-dependent diffraction, microscopy, and spectroscopy techniques will be employed to experimentally characterize the influence of mechanical stress. Here, collaboration with our partners at the Nagoya Institute of Technology will be important.
Principal Investigators
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Prof. Dr. Kyle G. Webber Institute of Glass and Ceramics Materials Science Department Friedrich-Alexander-Universität Erlangen-Nürnberg kyle.g.webber@fau.de |
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Prof. Dr. Koichi Hayashi Frontier Research Institute for Materials Science Nagoya Institute of Technology, Japan hayashi.koichi@nitech.ac.jp |
Doctoral Researchers
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M.Sc. Viktoria Kraft Institute of Glass and Ceramics Materials Science Department Friedrich-Alexander-Universität Erlangen-Nürnberg viktoria.kraft@fau.de |
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M.Sc. Ahmed Gadelmawla Institute of Glass and Ceramics Materials Science Department Friedrich-Alexander-Universität Erlangen-Nürnberg ahmed.gadelmawla@fau.de |
Associated Researchers
Dr. Neamul Khansur (FAU): neamul.khansur@fau.de
Dr. Koji Kimura (NITech)
Publications Project H
2022
Sintering condition-dependent electromechanical behavior of the lead-free piezoelectric Bi1/2K1/2TiO3
In: Journal of Materials Science (2022)
ISSN: 0022-2461
DOI: 10.1007/s10853-022-07630-w
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Influence of stress on the electromechanical properties and the phase transitions of lead-free (1-x)Ba(Zr0.2Ti0.8)O-3-x(Ba0.7Ca0.3)TiO3
In: Journal of Materials Science (2022)
ISSN: 0022-2461
DOI: 10.1007/s10853-022-07685-9
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Temperature- and stress-dependent electromechanical properties of phase-boundary-engineered KNN-based piezoceramics
In: Journal of the American Ceramic Society (2022)
ISSN: 0002-7820
DOI: 10.1111/jace.18917
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Determination of site occupancy of boron in 6H-SiC by multiple-wavelength neutron holography
In: Applied Physics Letters 120 (2022), Art.Nr.: 132101
ISSN: 0003-6951
DOI: 10.1063/5.0080895
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Significant displacement of calcium and barium ions in ferroelectric (Ba0.9Ca0.1)TiO3 revealed by x-ray fluorescence holography
In: Applied Physics Letters 120 (2022)
ISSN: 0003-6951
DOI: 10.1063/5.0076325
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Local Structural Investigation of (Ba,Ca)(Zr,Ti)O3 and Ca(Zr,Ti)O3 by X-Ray Fluorescence Holography
In: physica status solidi (b) (2022)
ISSN: 0370-1972
DOI: 10.1002/pssb.202100609
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2021
Effect of varying Bi content on the temperature-dependent mechanical, dielectric, and structural properties of nominal Na1/2Bi1/2TiO3
In: Journal of Applied Physics 130 (2021), Art.Nr.: 185106
ISSN: 0021-8979
DOI: 10.1063/5.0070594
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In situ combined stress- and temperature-dependent Raman spectroscopy of Li-doped (Na,K)NbO3
In: Journal of the American Ceramic Society (2021)
ISSN: 0002-7820
DOI: 10.1111/jace.18269
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Alkali volatilization of (Li,Na,K)NbO3-based piezoceramics and large-field electrical and mechanical properties
In: Journal of the Ceramic Society of Japan 129 (2021), S. 127-134
ISSN: 1882-0743
DOI: 10.2109/jcersj2.20201
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2020
Temperature- and Stress-Dependent Electromechanical Response of Porous Pb(Zr,Ti)O3
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000389
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Stress-modulated optimization of polymorphic phase transition in Li-doped (K,Na)NbO3
In: Applied Physics Letters 117 (2020), Art.Nr.: 032901
ISSN: 0003-6951
DOI: 10.1063/5.0016072
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Electromechanical Properties of Robocasted Barium Titanate Ceramics
In: Advanced Engineering Materials (2020)
ISSN: 1438-1656
DOI: 10.1002/adem.202000325
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Electric-field-induced strain of (Li,Na,K)NbO3-based multilayered piezoceramics under electromechanical loading
In: Journal of Applied Physics 128 (2020)
ISSN: 0021-8979
DOI: 10.1063/5.0029615
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