BiFeO3 CERAMICS DENSIFICATION STUDY
Апстракт
Bismuth ferrite (BiFeO3) is one of the very few materials possessing ordered both
electrical dipoles and magnetic moments in very wide range of temperatures. That gives
it tremendous opportunities for research and application.
BiFeO3 precursor powders were prepared by auto-combustion and soft chemical
synthesis methods using different organic compounds as fuels and complexing agents.
They were calcined at 600 °C for 2 h, grinded, pressed and sintered at 800 °C for 1 h
with quenching. XRD and SEM confirmed formation of very pure BiFeO3 perovskite
phase, but problem with low density, which is characteristic for BiFeO3 ceramics, still
remained. It doesn’t affect magnetic properties, but has strong influence on electrical
and, through them, on multiferroic properties. To define actual, intrinsic properties of
material, it is very important to obtain ceramics with densities close to theoretical. For
this reason, many treatments were tried in order to raise samples’ densities: pow...der
milling and homogenization, ultrasound, different pressures, various thermal treatments.
Powders and ceramic samples were then characterized (particle size analysis, XRD,
SEM). The densities of sintered BiFeO3 samples were measured. All the treatments had
impact on ceramics density, but some also introduced secondary phases.
Кључне речи:
Bismuth ferrite / auto-combustion / Powders and ceramic samples / multiferroic propertiesИзвор:
11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015, 2015Издавач:
- Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Ilić, Nikola AU - Bobić, Jelena AU - Džunuzović, Adis AU - Makarović, Maja AU - Rojac, Tadej AU - Stojanović, Biljana PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2615 AB - Bismuth ferrite (BiFeO3) is one of the very few materials possessing ordered both electrical dipoles and magnetic moments in very wide range of temperatures. That gives it tremendous opportunities for research and application. BiFeO3 precursor powders were prepared by auto-combustion and soft chemical synthesis methods using different organic compounds as fuels and complexing agents. They were calcined at 600 °C for 2 h, grinded, pressed and sintered at 800 °C for 1 h with quenching. XRD and SEM confirmed formation of very pure BiFeO3 perovskite phase, but problem with low density, which is characteristic for BiFeO3 ceramics, still remained. It doesn’t affect magnetic properties, but has strong influence on electrical and, through them, on multiferroic properties. To define actual, intrinsic properties of material, it is very important to obtain ceramics with densities close to theoretical. For this reason, many treatments were tried in order to raise samples’ densities: powder milling and homogenization, ultrasound, different pressures, various thermal treatments. Powders and ceramic samples were then characterized (particle size analysis, XRD, SEM). The densities of sintered BiFeO3 samples were measured. All the treatments had impact on ceramics density, but some also introduced secondary phases. PB - Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia C3 - 11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015 T1 - BiFeO3 CERAMICS DENSIFICATION STUDY UR - https://hdl.handle.net/21.15107/rcub_rimsi_2615 ER -
@conference{ author = "Ilić, Nikola and Bobić, Jelena and Džunuzović, Adis and Makarović, Maja and Rojac, Tadej and Stojanović, Biljana", year = "2015", abstract = "Bismuth ferrite (BiFeO3) is one of the very few materials possessing ordered both electrical dipoles and magnetic moments in very wide range of temperatures. That gives it tremendous opportunities for research and application. BiFeO3 precursor powders were prepared by auto-combustion and soft chemical synthesis methods using different organic compounds as fuels and complexing agents. They were calcined at 600 °C for 2 h, grinded, pressed and sintered at 800 °C for 1 h with quenching. XRD and SEM confirmed formation of very pure BiFeO3 perovskite phase, but problem with low density, which is characteristic for BiFeO3 ceramics, still remained. It doesn’t affect magnetic properties, but has strong influence on electrical and, through them, on multiferroic properties. To define actual, intrinsic properties of material, it is very important to obtain ceramics with densities close to theoretical. For this reason, many treatments were tried in order to raise samples’ densities: powder milling and homogenization, ultrasound, different pressures, various thermal treatments. Powders and ceramic samples were then characterized (particle size analysis, XRD, SEM). The densities of sintered BiFeO3 samples were measured. All the treatments had impact on ceramics density, but some also introduced secondary phases.", publisher = "Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia", journal = "11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015", title = "BiFeO3 CERAMICS DENSIFICATION STUDY", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2615" }
Ilić, N., Bobić, J., Džunuzović, A., Makarović, M., Rojac, T.,& Stojanović, B.. (2015). BiFeO3 CERAMICS DENSIFICATION STUDY. in 11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015 Faculty of Technology, University of Novi Sad Bul. cara Lazara 1, 21000 Novi Sad, Serbia.. https://hdl.handle.net/21.15107/rcub_rimsi_2615
Ilić N, Bobić J, Džunuzović A, Makarović M, Rojac T, Stojanović B. BiFeO3 CERAMICS DENSIFICATION STUDY. in 11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015. 2015;. https://hdl.handle.net/21.15107/rcub_rimsi_2615 .
Ilić, Nikola, Bobić, Jelena, Džunuzović, Adis, Makarović, Maja, Rojac, Tadej, Stojanović, Biljana, "BiFeO3 CERAMICS DENSIFICATION STUDY" in 11th Conference for Young Scientists in Ceramics, COST Workshop Novi Sad, Serbia, October 21-24, 2015 (2015), https://hdl.handle.net/21.15107/rcub_rimsi_2615 .