Enhanced transduction coefficient in piezoelectric PZT ceramics by mixing powders calcined at different temperatures |
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| Affiliation: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China;2. School of Materials Science and Engineering, Hubei University, Wuhan, 430062, China;1. School of Materials Science and Engineering, North University of China, Taiyuan 030051, China;2. State Key Lab of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China;1. Functional Materials and Acousto-Optic Instruments Institute, School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China;2. Electronic Materials Research Laboratory (Key Lab of Education Ministry), State Key Laboratory for Mechanical Behavior of Materials and School of Electronic Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China;3. National Laboratory of Solid State Microstructures and College of Engineering and Applied Science, Nanjing University, Nanjing 210093, China;1. Advanced Electronic and Nano-Materials Laboratory, Department of Physics, Jamia Millia Islamia University, New Delhi, 110025, India;2. Department of Physics, TMB University, Bhagalpur, 812007, India;3. Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology, Ulsan, 44919, Republic of Korea;4. Department of Ceramics and Glass Engineering, University of Aveiro, 3810-193, Aveiro, Portugal;5. Electronic Materials and Device Laboratory, Department of Physics and Astrophysics, University of Delhi, Delhi, 110 007, India;6. SPECLAB, Department of Physics, University of Puerto Rico, San Juan, 00931, Puerto Rico, USA;7. Department of Physics, University of St Andrews, St Andrews, KY16 9SS, UK |
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| Abstract: | Large transduction coefficient () is difficult to obtain in piezoelectric ceramics because these two parameters show opposite trends with compositional modifications. Herein, the Pb(Zr0.53Ti0.47)O3 ceramic powders were calcinated under different temperatures (A:830 °C, B:860 °C, and C:890 °C), and then mixed together according to different weight ratios (1A:1B:1C, 1A:2B:1C, 1A:2B:3C and 3A:2B:1C) for ceramics preparation. Both d33 and g33 are improved successfully, and the transduction coefficient with the weight ratio of 1A:2B:3C reaches up to 17,500 × 10−15 m2/N, which is 60 % higher than that with the powders calcinated under 830 °C, and at least twice those of commercial PZT-4, PZT-5A and PZT-8 ceramics. The improved transduction coefficient is owing to the enhanced piezoelectric constant and spontaneous polarization resulted from the increased grain size, relative density and the fraction of tetragonal phase. These results indicate that this is a simple but effective way to tailor the transduction coefficient in piezoelectric ceramics. |
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| Keywords: | Transduction coefficient Piezoelectric ceramics Solid state reaction method |
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