Dielectric properties of BaTiO3 based materials with addition of transition metal ions with variable valence

Dielectric properties of BaTiO3(BT), BaTiO3+0.1wt.%MnO2(BTMn) and BaTiO3+0.1 wt.%Fe2O3 (BTFe) solid solution was investigated. The effects of substitution on the microstructure and on the electric properties of BaTiO3 samples were studied by performing X-ray diffraction and electric measurements. X-...

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Bibliographic Details
Main Authors: Sitko, D, Bak, W, Garbarz-Glos, B, Budziak, A, Kajtoch, C, Kalvane, A
Format: Conference Proceeding
Language:English
Subjects:
Barium titanates
Dielectric properties
Electric properties
Frequency ranges
Manganese dioxide
Microphotographs
Room temperature
Solid solutions
Transition metals
X-ray diffraction
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Summary:Dielectric properties of BaTiO3(BT), BaTiO3+0.1wt.%MnO2(BTMn) and BaTiO3+0.1 wt.%Fe2O3 (BTFe) solid solution was investigated. The effects of substitution on the microstructure and on the electric properties of BaTiO3 samples were studied by performing X-ray diffraction and electric measurements. X-ray diffraction analysis of the samples shows the formation of single-phase compound with a tetragonal structure at room temperature. SEM microphotographs exhibit the uniform distribution of grains. The electric properties (a real part of electrical permittivity(□ϵ') and an imaginary part of electric modulus (M")) were investigated in the temperature range from 150K to 600K and in the frequency range from 0.1 Hz to 10 MHz. It was found that a Fe and Mn ions -doping influence the electric properties of the investigated polycrystalline materials.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/49/1/012050