Dielectric, Ferroelectric and Piezoelectric Properties of the Lead Free 0.9BaTiO3-(0.1-x)Bi0.5Na0.5TiO3-xBi(Mg0.5Ti0.5)O3Solid Solution
| Autor: | Jitkasem Mayamae, Usa Sukkha, Surasak Niemchareon, Naratip Vittayakorn, Rangson Muanghlua |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Phase transition Materials science Analytical chemistry 02 engineering and technology Dielectric 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferroelectricity Electronic Optical and Magnetic Materials Dielectric spectroscopy Tetragonal crystal system Nuclear magnetic resonance visual_art 0103 physical sciences visual_art.visual_art_medium Dielectric loss Ceramic 0210 nano-technology Solid solution |
| Zdroj: | Ferroelectrics. 490:23-35 |
| ISSN: | 1563-5112 0015-0193 |
| DOI: | 10.1080/00150193.2015.1070656 |
| Popis: | Solid solution of 0.9BaTiO3-(0.1-x)Bi0.5Na0.5TiO3-xBi(Mg0.5Ti0.5)O3 (BT-BNT-xBMT) system, where x = 0.00, 0.02, 0.04, 0.06, 0.08, 0.10, was synthesized by the solid state reaction. Dense BT-BNT-xBMT ceramics were obtained by sintering at 1,150–1,250˚C for 4 h. The effect of BMT on crystal structure and electrical property of BT-BNT ceramics was investigated as a function of composition, x, using X-ray diffraction, dielectric spectroscopy, hysteresis and strain measurements. The crystal structure of solid solution BT-BNT-xBMT, where x = 0.00-0.10, successively transforms from tetragonal to pseudocubic symmetry, with increased BMT concentration. Temperature dependence of dielectric constant (ϵr) and dielectric loss (tanδ) for BT-BNT-xBMT at various frequencies showed that phase transition of ceramics changed from ferroelectric to relaxor-like behavior as BMT content increased. Furthermore, remanent polarization (Pr), coercive field (Ec) and the normalized strain (d33*) of BT-BNT-xBMT ceramics tend to decrea... |
| Databáze: | OpenAIRE |
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