Effect of sintering temperature on the ferroelectric property and electrocaloric effect of Pb0.8Ba0.2ZrO3 ceramics |
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| Affiliation: | 1. Institute of Physics, University of Silesia, ul. 75 Pułku Piechoty 1, 41-500, Chorzów, Poland;2. Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569, Stuttgart, Germany;3. Department of Physics, Hallym University, 1 Hallymdaehakgil, Chuncheon, Gangwondo, 24252, South Korea;1. Anjuman College of Engineering & Technology, Nagpur 440001, M.S., India;2. Department of Physics, Rashtrasant Tukdoji Maharaj Nagpur University, Nagpur 440033, M.S., India;1. Key Laboratory of Electronic Equipment Structure Design (MOE), School of Mechano-Electronic Engineering, Xidian University, Xi''an 710071, China;2. School of Materials Science and Engineering, Xi''an University of Science and Technology, Xi''an 710054, China;1. Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand;2. Department of Industrial Engineering, Faculty of Engineering, Rajamangala University of Technology Lanna, Chiang Mai 50300, Thailand;3. Material Science Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand |
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| Abstract: | This work presents the effects of sintering temperature ranging from 1200 °C to 1300 °C at intervals of 20 °C on the crystal structure, ferroelectric properties, and electrocaloric effect (ECE) of Pb0.8Ba0.2ZrO3. Samples sintered at 1240 °C, 1260 °C, and 1280 °C have large remanent polarization and small coercive field. Meanwhile, samples sintered at 1260 °C, 1280 °C, and 1300 °C possess large breakdown field strength. Samples sintered at 1260 °C for 4 h exhibit the optimal ferroelectric properties. Antiferroelectricity-ferroelectricity (AFE-FE) phase transition occurs at room temperature T1 (279 K). Directly examining ECE at this temperature is meaningful, and the temperature change is 0.068 K at approximately 60 °C and 30 kV/cm. Results laid the foundation for studying the performance of ferroelectric and ECE within this phase-transition temperature range and provide a reference for new solid-state refrigeration technology. |
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| Keywords: | Sintering temperature Ferroelectric property Electrocaloric effect |
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