Effect of MnO2 on the microstructure and electrical properties of 0.83Pb(Zr0.5Ti0.5)O3-0.11Pb(Zn1/3Nb2/3)O3-0.06Pb(Ni1/3Nb2/3)O3 piezoelectric ceramics |
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| Affiliation: | 1. School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China;2. State Key laboratory of Advanced Special steel, School of Materials Science and Engineering, Shanghai University, Shanghai, 200444, China;1. Department of Functional Powder Materials, Korea Institute of Materials Science, Changwondaero 797, Changwon 51508, Republic of Korea;2. Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India;3. Advanced Materials Engineering Division, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea;1. Key Laboratory of Inorganic Functional Material and Device, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, PR China;2. University of Chinese Academy of Sciences, Beijing 100049, PR China;3. Department of Intelligent Systems Design Engineering, Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan;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. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China;2. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China;3. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | A sample of 0.83Pb(Zr0.5Ti0.5)O3-0.11Pb(Zn1/3Nb2/3)O3-0.06Pb(Ni1/3Nb2/3)O3 (PZNNT) to which MnO2 was added, with a high mechanical quality factor (Qm) and a good transduction coefficient (d33×g33), were systematically investigated. Based on the SEM analysis there existed two kinds of “secondary phases”, Rich Ti and Rich Zn phases, which arose due to the B-site substation of PZNNT-based ceramics by manganese ions. One phase was due to the Mn3+ replacing the Ti4+ to create oxygen vacancies and induce the hardening effect. Another phase was due to the Mn2+ replacing the Zn-site to stabilize the perovskite phase. When the addition of MnO2 reached the solubility limit of 1.5 mol% in the PZNNT-based ceramics, the sample showed optimal electrical properties (Qm=357, d33×g33=9859 × 10−15 m2/N, kp=0.56), which suggested its potential application for piezoelectric energy harvesting in larger field excitation environments. |
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| Keywords: | Piezoelectric energy harvesting |
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