Improvement of barium titanate properties induced by attrition milling
Samo za registrovane korisnike
2012
Autori
Vijatović Petrović, MirjanaBobić, Jelena
Radojković, Aleksandar
Banys, J
Stojanović, Biljana D
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Barium titanate powder was prepared by soft chemical process from polymeric precursors (modified Pechini process). The synthesized barium titanate (BT) powder was nanosized and the factor of agglomeration (F-agg) pointed the existence of agglomerates. In order to de-agglomerate nanopowder and to enhance BT properties the attrition milling was performed. The milled powder (BTA) possessed smaller particles and the size and number of agglomerates was significantly reduced. To investigate the effect of milling on improvement of ceramics electrical properties, both BT and BTA powders were uniaxially pressed and sintered at 1300 degrees C for 8 h in air. The temperature dependence of relative permittivity showed three structural phase transitions for ferroelectric barium titanate ceramics. The dielectric constant at Curie temperature was similar to 6700 for BTA which is much higher than 1340, obtained for non-treated BT. The dielectric losses were below 0.04 in both BT ceramics. At higher te...mperatures the analysis of impedance measurements showed the presence of both grain interior and grain boundary effects. Much higher grain and grain boundary resistivities were obtained for the BTA ceramics.
Ključne reči:
Powders: chemical preparation / Microstructure-final / Grain boundaries / Electrical propertiesIzvor:
Ceramics International, 2012, 38, 7, 5347-5354Izdavač:
- Elsevier Sci Ltd, Oxford
Finansiranje / projekti:
- Sinteza nanoprahova i procesiranje keramike i nanokompozita sa specifičnim električnim i magnetnim svojstvima za primenu u integrisanim pasivnim komponentama (RS-45021)
- COST 539
DOI: 10.1016/j.ceramint.2012.03.041
ISSN: 0272-8842
WoS: 000307027300004
Scopus: 2-s2.0-84862637221
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Vijatović Petrović, Mirjana AU - Bobić, Jelena AU - Radojković, Aleksandar AU - Banys, J AU - Stojanović, Biljana D PY - 2012 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/597 AB - Barium titanate powder was prepared by soft chemical process from polymeric precursors (modified Pechini process). The synthesized barium titanate (BT) powder was nanosized and the factor of agglomeration (F-agg) pointed the existence of agglomerates. In order to de-agglomerate nanopowder and to enhance BT properties the attrition milling was performed. The milled powder (BTA) possessed smaller particles and the size and number of agglomerates was significantly reduced. To investigate the effect of milling on improvement of ceramics electrical properties, both BT and BTA powders were uniaxially pressed and sintered at 1300 degrees C for 8 h in air. The temperature dependence of relative permittivity showed three structural phase transitions for ferroelectric barium titanate ceramics. The dielectric constant at Curie temperature was similar to 6700 for BTA which is much higher than 1340, obtained for non-treated BT. The dielectric losses were below 0.04 in both BT ceramics. At higher temperatures the analysis of impedance measurements showed the presence of both grain interior and grain boundary effects. Much higher grain and grain boundary resistivities were obtained for the BTA ceramics. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Improvement of barium titanate properties induced by attrition milling EP - 5354 IS - 7 SP - 5347 VL - 38 DO - 10.1016/j.ceramint.2012.03.041 ER -
@article{ author = "Vijatović Petrović, Mirjana and Bobić, Jelena and Radojković, Aleksandar and Banys, J and Stojanović, Biljana D", year = "2012", abstract = "Barium titanate powder was prepared by soft chemical process from polymeric precursors (modified Pechini process). The synthesized barium titanate (BT) powder was nanosized and the factor of agglomeration (F-agg) pointed the existence of agglomerates. In order to de-agglomerate nanopowder and to enhance BT properties the attrition milling was performed. The milled powder (BTA) possessed smaller particles and the size and number of agglomerates was significantly reduced. To investigate the effect of milling on improvement of ceramics electrical properties, both BT and BTA powders were uniaxially pressed and sintered at 1300 degrees C for 8 h in air. The temperature dependence of relative permittivity showed three structural phase transitions for ferroelectric barium titanate ceramics. The dielectric constant at Curie temperature was similar to 6700 for BTA which is much higher than 1340, obtained for non-treated BT. The dielectric losses were below 0.04 in both BT ceramics. At higher temperatures the analysis of impedance measurements showed the presence of both grain interior and grain boundary effects. Much higher grain and grain boundary resistivities were obtained for the BTA ceramics.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Improvement of barium titanate properties induced by attrition milling", pages = "5354-5347", number = "7", volume = "38", doi = "10.1016/j.ceramint.2012.03.041" }
Vijatović Petrović, M., Bobić, J., Radojković, A., Banys, J.,& Stojanović, B. D.. (2012). Improvement of barium titanate properties induced by attrition milling. in Ceramics International Elsevier Sci Ltd, Oxford., 38(7), 5347-5354. https://doi.org/10.1016/j.ceramint.2012.03.041
Vijatović Petrović M, Bobić J, Radojković A, Banys J, Stojanović BD. Improvement of barium titanate properties induced by attrition milling. in Ceramics International. 2012;38(7):5347-5354. doi:10.1016/j.ceramint.2012.03.041 .
Vijatović Petrović, Mirjana, Bobić, Jelena, Radojković, Aleksandar, Banys, J, Stojanović, Biljana D, "Improvement of barium titanate properties induced by attrition milling" in Ceramics International, 38, no. 7 (2012):5347-5354, https://doi.org/10.1016/j.ceramint.2012.03.041 . .