Elaboration and characterization of Nb-doped PZT ceramics |
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| Institution: | 1. Department of Mechanical and Energy Engineering, University of North Texas, Denton, TX 76203, USA;2. Department of Engineering Technology, University of North Texas, Denton, TX 76203, USA;3. Department of Electrical Engineering, University of South Carolina, Columbus, SC 29208, USA;1. Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;2. Student Research Committee, Department of Clinical Nutrition and Dietetics, Faculty of Nutrition Sciences and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran;3. Cellular and Molecular Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran;4. Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran;5. Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran;6. Tehran Obesity Treatment Center, Department of Surgery, Shahed University, Tehran, Iran;1. Politecnico di Torino, Department of Applied Science and Technology, Corso Duca degli Abruzzi 24, 10129, Torino, Italy;2. School of Engineering & Materials Science and Nanoforce Technology Ltd., Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom;1. Department of Pharmacy, “Federico II” University, Naples, Italy;2. Clinical Investigation Center for Neurosciences, Pitié-Salpêtrière Hospital, Paris, France;3. University Medical Center, Göttingen, Germany;4. Department of Neurosciences, Reproductive Sciences and Odontostomatology, “Federico II” University, Naples, Italy |
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| Abstract: | The physical properties, such as electrical or mechanical properties, of PbZrxTi1-x]O3 (PZT) ceramics are strongly influenced by domain-wall motions, which can be tailored via the substitutions of cations within the A and/or B sites of the ABO3 perovskite structure. Different domain mobilities can be achieved by lead and/or oxygen vacancies, according to the valency and ionic radius of the dopants. To quantify the near-surface domain mobility, Nb-doped and undoped PZT (50/50) ceramics were prepared. Surface polishing affected the orientation of ferroelastic 90°-domains at the surface and induced a crystallographic texture of the samples. Soft(Nb-doped) PZT revealed the highest domain mobility, as evidenced by changes in the intensity ratio of the {002} and {200} X-ray reflections. |
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