Powder Metallurgy and Metal Ceramics

, Volume 48, Issue 11–12, pp 712–717 | Cite as

Structural analysis of Zn2TiO4 doped with MgO

  • M. V. Nikolic
  • N. ObradovicEmail author
  • K. M. Paraskevopoulos
  • T. T. Zorba
  • S. M. Savic
  • M. M. Ristic
Structural Materials Research

The starting mixtures of ZnO, TiO2, and MgO (0, 1.25, and 2.5 wt.%) powders are mechanically activated in a high-energy planetary mill for 15 min and then sintered between 800 and 1100°C for 2 h. The influence of MgO addition on the structure of the samples obtained is analyzed with X-ray diffraction and infrared reflection spectroscopy. Room-temperature far-infrared reflectivity spectra of the samples doped with MgO (0, 1.25, and 2.5 wt.%) and sintered at 1100°C in the frequency range between 100 and 1200 cm–1 are measured and analyzed. Optical parameters are determined for seven oscillators belonging to the spinel structure using the four-parameter model of coupled oscillators. Born effective charges are calculated from the transversal/longitudinal splitting.


zinc titanate magnesium oxide powders sintering mechanical activation X-ray diffraction infrared reflection spectroscopy structure 


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Copyright information

© Springer Science+Business Media, Inc. 2009

Authors and Affiliations

  • M. V. Nikolic
    • 1
  • N. Obradovic
    • 2
    Email author
  • K. M. Paraskevopoulos
    • 3
  • T. T. Zorba
    • 3
  • S. M. Savic
    • 2
  • M. M. Ristic
    • 4
  1. 1.Institute for Multidisciplinary ResearchBelgradeSerbia
  2. 2.Institute of Technical Sciences of Serbian Academy of Sciences and ArtsBelgradeSerbia
  3. 3.Aristotle UniversityThessalonikiGreece
  4. 4.Serbian Academy of Sciences and ArtsBelgradeSerbia

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