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Synthesis of Barium-zinc-titanate Ceramics

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2012
3049.pdf (329.1Kb)
Authors
Obradović, N.
Nikolić, M.V.
Nikolić, N.
Filipović, Suzana
Mitrić, M.
Pavlović, Vladimir
Nikolić, P.M.
Djordjević, Antonije
Ristić, M.M.
Article (Published version)
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Abstract
Mixtures of BaCO3, ZnO and TiO2 powders, with molar ratio of 1:2:4, were mechanically activated for 20, 40 and minutes in a planetary ball mill. The resulting powders were compacted into pellets and isothermally sintered at 1250 degrees C for 2h with a heating rate of 10 degrees C/min. X-ray diffraction analysis of obtained powders and sintered samples was performed in order to investigate changes of the phase composition. The microstructure of sintered samples was examined by scanning electron microscopy. The photoacoustic phase and amplitude spectra of sintered samples were measured as a function of the laser beam modulating frequency using a transmission detection configuration. Fitting of experimental data enabled determination of photoacoustic properties including thermal diffusivity. Based on the results obtained correlation between thermal diffusivity and experimental conditions, as well the samples microstructure characteristics, was discussed.
Keywords:
Ceramics / Mechanochemical processing / Sintering / X-ray diffraction
Source:
Science of Sintering, 2012, 44, 1, 65-71
Publisher:
  • Međunarodni Institut za nauku o sinterovanju, Beograd
Funding / projects:
  • Serbian Academy of Sciences and Arts [F-198]
  • Directed synthesis, structure and properties of multifunctional materials (RS-172057)
  • Zero- to Three-Dimensional Nanostructures for Application in Electronics and Renewable Energy Sources: Synthesis, Characterization and Processing (RS-45007)

DOI: 10.2298/SOS1201065O

ISSN: 0350-820X

WoS: 000318147700007

Scopus: 2-s2.0-84864298816
[ Google Scholar ]
URI
http://aspace.agrif.bg.ac.rs/handle/123456789/3052
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Poljoprivredni fakultet

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