ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn
Аутори
Vijatović Petrović, MirjanaBobić, Jelena
Grigalaitis, Robertas
Ilić, Nikola
Džunuzović, Adis
Stojanović, Biljana
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
A modified Pechini process was used to prepare nanopowders of barium titanate (BT) co-doped with niobium and manganese. Prepared BT compositions were (1) BT doped with 0.4 mol% Nb and 0.1 mol% Mn (BT1); (2) 0.4 mol% Nb and 0.05 mol% Mn (BT2) and (3) 0.8 mol% Nb and 0.01 mol% Mn (BT3). The XRD results of sintered samples showed the formation of barium titanate tetragonal crystal structure. Microstructure was consisted of polygonal grains but the differences in the grain size, homogeneity and porosity between the doped ceramics were noticed. The addition of dopants influenced the grain size and microstructure development. The dielectric measurements of all ceramics showed the behavior of classical ferroelectric material. In comparison with pure barium titanate, structural transition of all co-doped ceramics are shifted to lower temperatures. The real permittivity value increase in all co-doped ceramics in the whole frequency range, reaching much higher values then in pure barium titanate... ceramics obtained by polymeric precursors method. The analysis of impedance spectrum at higher temperatures showed the presence of both, grain interior and grain boundary effects.
Кључне речи:
Pechini process / barium titanate / tetragonal crystal structure / dielectric measurements / impedanceИзвор:
3rd Conference of The Serbian Society for Ceramic Materials, 2015Издавач:
- Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Vijatović Petrović, Mirjana AU - Bobić, Jelena AU - Grigalaitis, Robertas AU - Ilić, Nikola AU - Džunuzović, Adis AU - Stojanović, Biljana PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2564 AB - A modified Pechini process was used to prepare nanopowders of barium titanate (BT) co-doped with niobium and manganese. Prepared BT compositions were (1) BT doped with 0.4 mol% Nb and 0.1 mol% Mn (BT1); (2) 0.4 mol% Nb and 0.05 mol% Mn (BT2) and (3) 0.8 mol% Nb and 0.01 mol% Mn (BT3). The XRD results of sintered samples showed the formation of barium titanate tetragonal crystal structure. Microstructure was consisted of polygonal grains but the differences in the grain size, homogeneity and porosity between the doped ceramics were noticed. The addition of dopants influenced the grain size and microstructure development. The dielectric measurements of all ceramics showed the behavior of classical ferroelectric material. In comparison with pure barium titanate, structural transition of all co-doped ceramics are shifted to lower temperatures. The real permittivity value increase in all co-doped ceramics in the whole frequency range, reaching much higher values then in pure barium titanate ceramics obtained by polymeric precursors method. The analysis of impedance spectrum at higher temperatures showed the presence of both, grain interior and grain boundary effects. PB - Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia C3 - 3rd Conference of The Serbian Society for Ceramic Materials T1 - ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn UR - https://hdl.handle.net/21.15107/rcub_rimsi_2564 ER -
@conference{ author = "Vijatović Petrović, Mirjana and Bobić, Jelena and Grigalaitis, Robertas and Ilić, Nikola and Džunuzović, Adis and Stojanović, Biljana", year = "2015", abstract = "A modified Pechini process was used to prepare nanopowders of barium titanate (BT) co-doped with niobium and manganese. Prepared BT compositions were (1) BT doped with 0.4 mol% Nb and 0.1 mol% Mn (BT1); (2) 0.4 mol% Nb and 0.05 mol% Mn (BT2) and (3) 0.8 mol% Nb and 0.01 mol% Mn (BT3). The XRD results of sintered samples showed the formation of barium titanate tetragonal crystal structure. Microstructure was consisted of polygonal grains but the differences in the grain size, homogeneity and porosity between the doped ceramics were noticed. The addition of dopants influenced the grain size and microstructure development. The dielectric measurements of all ceramics showed the behavior of classical ferroelectric material. In comparison with pure barium titanate, structural transition of all co-doped ceramics are shifted to lower temperatures. The real permittivity value increase in all co-doped ceramics in the whole frequency range, reaching much higher values then in pure barium titanate ceramics obtained by polymeric precursors method. The analysis of impedance spectrum at higher temperatures showed the presence of both, grain interior and grain boundary effects.", publisher = "Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia", journal = "3rd Conference of The Serbian Society for Ceramic Materials", title = "ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2564" }
Vijatović Petrović, M., Bobić, J., Grigalaitis, R., Ilić, N., Džunuzović, A.,& Stojanović, B.. (2015). ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn. in 3rd Conference of The Serbian Society for Ceramic Materials Institute for Multidisciplinary Research, University of Belgrade Kneza Višeslava 1, 11000 Belgrade, Serbia.. https://hdl.handle.net/21.15107/rcub_rimsi_2564
Vijatović Petrović M, Bobić J, Grigalaitis R, Ilić N, Džunuzović A, Stojanović B. ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn. in 3rd Conference of The Serbian Society for Ceramic Materials. 2015;. https://hdl.handle.net/21.15107/rcub_rimsi_2564 .
Vijatović Petrović, Mirjana, Bobić, Jelena, Grigalaitis, Robertas, Ilić, Nikola, Džunuzović, Adis, Stojanović, Biljana, "ELECTRICAL PROPERTIES OF BARIUM TITANATE CO- DOPED WITH Nb AND Mn" in 3rd Conference of The Serbian Society for Ceramic Materials (2015), https://hdl.handle.net/21.15107/rcub_rimsi_2564 .