Ferroelectric,dielectric and piezoelectric properties of Sr0.6(BiNa)0.2Bi2Nb2O9 ceramics |
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| Affiliation: | 1. College of Materials Science and Engineering, Sichuan University, Chengdu 610064, China;2. School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, China;1. Facultad de Física-Instituto de Ciencia y Tecnología de Materiales, Universidad de La Habana, San Lázaro y L, Vedado, La Habana, 10400, Cuba;2. Grupo de Ferroelétricos e Materiais Multifuncionais, Instituto de Física, Universidade Federal de Uberlândia, 38408-100, Uberlândia, MG, Brazil;1. Laboratoire des Sciences des Matériaux Inorganiques et Leurs Applications, Faculté des Sciences Semlalia, Université Cadi Ayyad, Marrakech, Morocco;2. Unité de Dynamique et Structure des Matériaux Moléculaires, Université du Littoral- Côte d’Opale, Calais, France;1. Collaborative Innovation Center of Steel Technology, University of Science & Technology Beijing, 30 Xueyuan Road, Haidian Zone, Beijing 100083, PR China;2. School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, United Kingdom;3. Institute of Materials Research, Slovak Academy of Sciences, Watsonova 47, 04001 Kosice, Slovakia;1. Key Laboratory for Liquid-Solid Structure Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061, China;2. Suzhou Institute of Shandong University, Suzhou, 215123, China;3. Semiconductor Manufacturing International Corporation, Beijing, 100176, China;4. School of Mechanical Engineering, Shandong University, Jinan, 250061, China;5. School of Physic, State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250061, China |
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| Abstract: | Aurivillius-type ceramic, Sr0.6(BiNa)0.2Bi2Nb2O9 (SBNBN), was synthesized by using conventional solid-state processing. Phase structure and microstructural morphology were confirmed by X-ray diffraction analyses (XRD) and the scanning electron microscopy (SEM). Dielectric, piezoelectric and electromechanical properties of the SBNBN ceramic were investigated in detail. Curie temperature (Tc), piezoelectric coefficient (d33), electromechanical coupling coefficient kp, kt and quality factor Qm of the SBNBN ceramic were found to be 586.5 °C, 22 pC/N, 5.0%, 8.7% and 651, respectively. In addition, the reasons for varieties of the resistivity and dielectric properties at high temperature were also discussed. |
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| Keywords: | A Ceramics A Inorganic compound C Raman spectroscopy D Piezoelectricity |
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