Magneto-electric properties of xNi0.7Zn0.3Fe2O4 – (1-x)BaTiO3 multiferroic composites
| Autor: | A.S. Dzunuzovic, Nikola Ilic, Maksim Ivanov, J.D. Bobić, Juras Banys, M.M. Vijatović Petrović, Robertas Grigalaitis, Biljana Stojanović |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Process Chemistry and Technology 02 engineering and technology Dielectric Coercivity 021001 nanoscience & nanotechnology 01 natural sciences Ferroelectricity Grain size Surfaces Coatings and Films Electronic Optical and Magnetic Materials Dielectric spectroscopy chemistry.chemical_compound chemistry visual_art 0103 physical sciences Barium titanate Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Ferrite (magnet) Ceramic Composite material 0210 nano-technology |
| Zdroj: | Ceramics International. 44:683-694 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2017.09.229 |
| Popis: | Di-phase ceramic composites, with general formula xNi 0.7 Zn 0.3 Fe 2 O 4 – (1-x)BaTiO 3 (x = 0.9, 0.7, 0.5, 0.3, 0.1), were prepared by a mixing method. X-ray analysis, for powder and ceramics, indicated the formation of ferrite and barium titanate phases without the presence of the impurities. SEM analysis indicated that the composite morphology contained two types of grains, polygonal and rounded. Homogeneous microstructure and the smallest grain size were obtained in ceramics with 70% of barium titanate. The electrical properties of these materials were investigated using impedance spectroscopy, dielectric and ferroelectric measurements. The NZF-BT(30-70) composite has shown better electrical properties in comparison to other investigated ceramics, confirmed by dielectric and ferroelectric data analysis. Saturation magnetization and coercive field decreased with the increase of the content of ferroelectric phase. |
| Databáze: | OpenAIRE |
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