Synthesis and characterization of BaTiO3/α-Fe2O3 core/shell structure
Pavlović, Vera P.
Pavlović, Vladimir B.
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Multiferroic materials attracted a lot of attention in recent years because of their significant scientific interest and technological applications. The multiferroic core/shell powders have a better connectivity between the phases, resulting in superior dielectric and magneto electric properties. In this study, the influence of preparation condition on structure and properties of BaTiO3/α-Fe2O3 core/shell composite materials was examined. The five samples were obtained by varying synthesis conditions, such as synthesized method (co-precipitation and sonochemical method) and pH values of solution. XRD and Raman spectroscopy analyses were performed in order to determine phase composition and structural changes within samples. Morphology modifications were examined by SEM and EDS analyses. Finally, effect of structural and microstructural changes on magnetic and electrical properties was detected and explained.
Кључне речи:ceramics / electronic materials / ferroelectricity / magnetic materials / Raman spectroscopy / X-ray diffraction (XRD)
Извор:Journal of Advanced Ceramics, 2019, 8, 1, 133-147
- Усмерена синтеза, структура и својства мултифункционалних материјала (RS-172057)
- United States National Science Foundation (NSF) / Centers of Research Excellence in Science and Technology (CREST), Grant HRD-0833184
- United States National Aeronautics and Space Administration (NASA), Grant NNX09AV07A
- United States National Science Foundation (NSF) / Partnerships for Research and Education in Materials (PREM), Grant 1523617