Effect of electric hysteresis on fatigue behavior in antiferroelectric bulk ceramics under bipolar loading

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Mohapatra, Pratyasha
Cui, Jun
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Royal Society of Chemistry
Johnson, Duane
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Tan, Xiaoli
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Materials Science and Engineering

The Department of Materials Science and Engineering teaches the composition, microstructure, and processing of materials as well as their properties, uses, and performance. These fields of research utilize technologies in metals, ceramics, polymers, composites, and electronic materials.

The Department of Materials Science and Engineering was formed in 1975 from the merger of the Department of Ceramics Engineering and the Department of Metallurgical Engineering.

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Chemical and Biological Engineering

The function of the Department of Chemical and Biological Engineering has been to prepare students for the study and application of chemistry in industry. This focus has included preparation for employment in various industries as well as the development, design, and operation of equipment and processes within industry.Through the CBE Department, Iowa State University is nationally recognized for its initiatives in bioinformatics, biomaterials, bioproducts, metabolic/tissue engineering, multiphase computational fluid dynamics, advanced polymeric materials and nanostructured materials.

The Department of Chemical Engineering was founded in 1913 under the Department of Physics and Illuminating Engineering. From 1915 to 1931 it was jointly administered by the Divisions of Industrial Science and Engineering, and from 1931 onward it has been under the Division/College of Engineering. In 1928 it merged with Mining Engineering, and from 1973–1979 it merged with Nuclear Engineering. It became Chemical and Biological Engineering in 2005.

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Antiferroelectric ceramics are exploited for applications in high energy-density capacitors due to their reversible electric-field-induced phase transitions. The difference in the fields between the forward and reverse transition is termed electric hysteresis. As accumulation of hysteresis loss is detrimental to antiferroelectric capacitors, especially in high-frequency applications, the effect of hysteresis on the long-term operation performance must be evaluated. We investigate the effect of hysteresis on fatigue behavior in two antiferroelectric ceramic compositions with comparable recoverable energy densities (0.56 vs. 0.64 J cm−3), having a large and small hysteresis of 23.9 kV cm−1 and 3.9 kV cm−1, respectively. In test cycles of 2.5 × 106 of ±60 kV cm−1 bipolar fields, the ceramic with large hysteresis exhibits a 72% decrease in the recoverable energy density and a 71% decrease in the energy efficiency. In contrast, the small hysteresis ceramic shows a 4.5% degradation in energy density and 0% degradation in energy efficiency. These results demonstrate that reducing the electric hysteresis of antiferroelectric capacitors is essential for higher energy efficiency and longer service lifetime.
This article is published as Mohapatra, Pratyasha, Duane D. Johnson, Jun Cui, and Xiaoli Tan. "Effect of electric hysteresis on fatigue behavior in antiferroelectric bulk ceramics under bipolar loading." Journal of Materials Chemistry C 9, no. 43 (2021): 15542-15551. DOI: 10.1039/D1TC03520G. Copyright 2021 The Royal Society of Chemistry. Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0). Posted with permission.