Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics
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2010
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BaTiO3-ceramics are known as some of the most useful electroceramics with a various applications. In this study the effect of Er 2O3 as additive on the microstructure and dielectric properties of doped BaTiO3 was investigated. The samples doped with 0.01 to 1.0 wt% Er2O3 were prepared using by conventional solid state procedure, and were sintered at 1350°C for four hours. The microstructure of sintered specimens was investigated by SEM-5300 and capacitance and dielectric loss measurements have been done using LCR-metra Agilent 4284A in the frequency range from 20Hz to 1MHz. The microstructure study with low additive concentration shows abnormal grain size, with average grain size between 20-60 μm. With the higher dopant concentracion the abnormal grain growth is inhibited and the grain size ranged between 5-15μm. The dielectric constant decrease with increase of dopant concentration and for all of the investigated samples ranged from 650 to 1600 at room temperature. The dissipation los...ses a linear decrease v.s frequency is mesured for all investigated samples. We applied a fractal method for the microstructure analysis. This method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties.
Ključne reči:
dielectric properties / microstructure / barium-titanate / fractal modelsIzvor:
Advances in Electroceramic Materials II, 2010, 221, 89-103Izdavač:
- Hoboken, NJ : John Wiley & Sons
Napomena:
- Ceramic Transactions, Volume 221
- 2009 Material Science and Technology Conference, MS and T'09; Pittsburgh, PA; United States; 25 October 2009 - 29 October 2009
DOI: 10.1002/9780470930915.ch9
ISBN: 978-047092716-8
ISSN: 1042-1122
Scopus: 2-s2.0-78149289046
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Mitić, Vojislav V. AU - Pavlović, Vladimir B. AU - Paunović, Vesna AU - Kocić, Ljubiša AU - Živković, Ljiljana PY - 2010 UR - https://dais.sanu.ac.rs/123456789/3412 AB - BaTiO3-ceramics are known as some of the most useful electroceramics with a various applications. In this study the effect of Er 2O3 as additive on the microstructure and dielectric properties of doped BaTiO3 was investigated. The samples doped with 0.01 to 1.0 wt% Er2O3 were prepared using by conventional solid state procedure, and were sintered at 1350°C for four hours. The microstructure of sintered specimens was investigated by SEM-5300 and capacitance and dielectric loss measurements have been done using LCR-metra Agilent 4284A in the frequency range from 20Hz to 1MHz. The microstructure study with low additive concentration shows abnormal grain size, with average grain size between 20-60 μm. With the higher dopant concentracion the abnormal grain growth is inhibited and the grain size ranged between 5-15μm. The dielectric constant decrease with increase of dopant concentration and for all of the investigated samples ranged from 650 to 1600 at room temperature. The dissipation losses a linear decrease v.s frequency is mesured for all investigated samples. We applied a fractal method for the microstructure analysis. This method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties. PB - Hoboken, NJ : John Wiley & Sons C3 - Advances in Electroceramic Materials II T1 - Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics SP - 89 EP - 103 VL - 221 DO - 10.1002/9780470930915.ch9 UR - https://hdl.handle.net/21.15107/rcub_dais_3412 ER -
@conference{ author = "Mitić, Vojislav V. and Pavlović, Vladimir B. and Paunović, Vesna and Kocić, Ljubiša and Živković, Ljiljana", year = "2010", abstract = "BaTiO3-ceramics are known as some of the most useful electroceramics with a various applications. In this study the effect of Er 2O3 as additive on the microstructure and dielectric properties of doped BaTiO3 was investigated. The samples doped with 0.01 to 1.0 wt% Er2O3 were prepared using by conventional solid state procedure, and were sintered at 1350°C for four hours. The microstructure of sintered specimens was investigated by SEM-5300 and capacitance and dielectric loss measurements have been done using LCR-metra Agilent 4284A in the frequency range from 20Hz to 1MHz. The microstructure study with low additive concentration shows abnormal grain size, with average grain size between 20-60 μm. With the higher dopant concentracion the abnormal grain growth is inhibited and the grain size ranged between 5-15μm. The dielectric constant decrease with increase of dopant concentration and for all of the investigated samples ranged from 650 to 1600 at room temperature. The dissipation losses a linear decrease v.s frequency is mesured for all investigated samples. We applied a fractal method for the microstructure analysis. This method for analysis of the structure of ceramics provides a new approach for describing, predicting and modeling the grain shape and relations between the BaTiO3 ceramic structure and dielectrical properties.", publisher = "Hoboken, NJ : John Wiley & Sons", journal = "Advances in Electroceramic Materials II", title = "Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics", pages = "89-103", volume = "221", doi = "10.1002/9780470930915.ch9", url = "https://hdl.handle.net/21.15107/rcub_dais_3412" }
Mitić, V. V., Pavlović, V. B., Paunović, V., Kocić, L.,& Živković, L.. (2010). Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics. in Advances in Electroceramic Materials II Hoboken, NJ : John Wiley & Sons., 221, 89-103. https://doi.org/10.1002/9780470930915.ch9 https://hdl.handle.net/21.15107/rcub_dais_3412
Mitić VV, Pavlović VB, Paunović V, Kocić L, Živković L. Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics. in Advances in Electroceramic Materials II. 2010;221:89-103. doi:10.1002/9780470930915.ch9 https://hdl.handle.net/21.15107/rcub_dais_3412 .
Mitić, Vojislav V., Pavlović, Vladimir B., Paunović, Vesna, Kocić, Ljubiša, Živković, Ljiljana, "Characterization and microstructure evolution in Er-DOPED BaTiO3 ceramics" in Advances in Electroceramic Materials II, 221 (2010):89-103, https://doi.org/10.1002/9780470930915.ch9 ., https://hdl.handle.net/21.15107/rcub_dais_3412 .