Processing, Microstructure and Dielectric Properties of the Bi_5Ti_3FeO_{15} Ceramic

• Authors: J. Rymarczyk , G. Dercz , J. Ilczuk
• Languages of publication: EN

Abstracts

EN

The aim of the present work is the analysis of microstructure, dielectric permittivity and thermal properties analysis of Bi_5Ti_3FeO_{15} ceramics obtained by two methods. The studied Bi_5Ti_3FeO_{15} ceramics were prepared by conventional synthesis and hot uniaxial pressing reaction from the conventional mixture of oxides, viz. TiO_2, Fe_2O_3, Bi_2O_3. The studied material has layered perovskite like structures, first described by Aurivillius in 1949 and Subbaro in 1969. The ceramic Bi_5Ti_3FeO_{15} is known to contain a series of compounds with the general formula: Bi_{m+1}Fe_{m-3}Ti_3O_{3m+3}. The X-ray diffraction methods were used for qualitative phase analysis of studied samples. The morphology was analyzed by scanning electron microscopy method. The thermal properties of the studied materials were measured using the differential thermal analysis at a constant heating rate of 15 K/min under an argon protective atmosphere. Thermal dependence of dielectric permittivity was studied between room temperature and 1137 K.

Keywords

EN

77.84.-s; 81.20.Ev; 81.05.Je; 61.05.cp; 68.37.Ef

Discipline

• 77.84.-s: Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials(for nonlinear optical materials, see 42.70.Mp; for dielectric materials in electrochemistry, see 82.45.Un)
• 61.05.cp: X-ray diffraction
• 81.05.Je: Ceramics and refractories (including borides, carbides, hydrides, nitrides, oxides, and silicides)(for ceramics in electrochemistry, see 82.45.Yz)
• 68.37.Ef: Scanning tunneling microscopy (including chemistry induced with STM)
• 81.20.Ev: Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 114
• Issue: 6A
• Pages: A-191-A-197

Dates

published

2008-12

Contributors

author

J. Rymarczyk

• Department of Material Science, Faculty of Computer Science and Material Science, University of Silesia, Żeromskiego 3, 41-200 Sosnowiec, Poland

author

G. Dercz

• Institute of Material Science, University of Silesia, Bankowa 12, 40-007 Katowice, Poland

author

J. Ilczuk

• Department of Material Science, Faculty of Computer Science and Material Science, University of Silesia, Żeromskiego 3, 41-200 Sosnowiec, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.114.A-191