Fatigue of Field-Induced Strain in Antiferroelectric Pb0.97La0.02(Zr0.77Sn0.14Ti0.09)O3 Ceramics |
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| Authors: | Longjie Zhou ré Zimmermann Yu-Ping Zeng Fritz Aldinger |
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| Affiliation: | Max-Planck-Institut für Metallforschung and Institut für Nichtmetallische Anorganische Materialien, Universität Stuttgart, Pulvermetallurgisches Laboratorium, Heisenbergstrasse 3, 70569 Stuttgart, Germany |
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| Abstract: | The fatigue of mechanical strain induced by electric fields was investigated for antiferroelectric Pb0.97La0.02(Zr0.77Sn0.14Ti0.09)O3 ceramics. The material shows a high resistance to fatigue owing to bipolar electric cycling up to 108 cycles. The strain hysteresis loop is still fairly symmetric, whereas the maximum field-induced strain decreases by only 30% of its initial value. The fatigued samples show a damaged microstructure with dendritic macrocracks and microcrack clouds. The fatigue is attributed to a combination of electrochemical and mechanical mechanisms. |
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| Keywords: | fatigue ferroelectricity/ferroelastic materials strain |
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