Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics
Lead-free bismuth sodium titanate zirconate (Bi0.5Na0.5Ti1-xZrxO3where x = 0.20, 0.35, 0.40, 0.45, 0.60, and 0.80 mole fraction) [BNTZ] ceramics were successfully prepared using the conventional mixed-oxide method. The samples were sintered for 2 h at temperatures lower than 1,000°C. The density of...
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th-cmuir.6653943832-517692018-09-04T06:14:37Z Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics Ampika Rachakom Panupong Jaiban Sukanda Jiansirisomboon Anucha Watcharapasorn Materials Science Physics and Astronomy Lead-free bismuth sodium titanate zirconate (Bi0.5Na0.5Ti1-xZrxO3where x = 0.20, 0.35, 0.40, 0.45, 0.60, and 0.80 mole fraction) [BNTZ] ceramics were successfully prepared using the conventional mixed-oxide method. The samples were sintered for 2 h at temperatures lower than 1,000°C. The density of the BNTZ samples was at least 95% of the theoretical values. The scanning electron microscopy micrographs showed that small grains were embedded between large grains, causing a relatively wide grain size distribution. The density and grain size increased with increasing Zr concentration. A peak shift in X-ray diffraction patterns as well as the disappearance of several hkl reflections indicated some significant crystal-structure changes in these materials. Preliminary crystal-structure analysis indicated the existence of phase transition from a rhombohedral to an orthorhombic structure. The dielectric and ferroelectric properties were also found to correlate well with the observed phase transition. © 2012 Rachakom et al. 2018-09-04T06:08:24Z 2018-09-04T06:08:24Z 2012-01-25 Journal 1556276X 19317573 2-s2.0-84856051351 10.1186/1556-276X-7-57 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84856051351&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51769 |
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Materials Science Physics and Astronomy Ampika Rachakom Panupong Jaiban Sukanda Jiansirisomboon Anucha Watcharapasorn Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
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Lead-free bismuth sodium titanate zirconate (Bi0.5Na0.5Ti1-xZrxO3where x = 0.20, 0.35, 0.40, 0.45, 0.60, and 0.80 mole fraction) [BNTZ] ceramics were successfully prepared using the conventional mixed-oxide method. The samples were sintered for 2 h at temperatures lower than 1,000°C. The density of the BNTZ samples was at least 95% of the theoretical values. The scanning electron microscopy micrographs showed that small grains were embedded between large grains, causing a relatively wide grain size distribution. The density and grain size increased with increasing Zr concentration. A peak shift in X-ray diffraction patterns as well as the disappearance of several hkl reflections indicated some significant crystal-structure changes in these materials. Preliminary crystal-structure analysis indicated the existence of phase transition from a rhombohedral to an orthorhombic structure. The dielectric and ferroelectric properties were also found to correlate well with the observed phase transition. © 2012 Rachakom et al. |
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Journal |
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Ampika Rachakom Panupong Jaiban Sukanda Jiansirisomboon Anucha Watcharapasorn |
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Ampika Rachakom Panupong Jaiban Sukanda Jiansirisomboon Anucha Watcharapasorn |
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Ampika Rachakom |
title |
Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
title_short |
Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
title_full |
Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
title_fullStr |
Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
title_full_unstemmed |
Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
title_sort |
crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84856051351&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/51769 |
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