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Journal of Materials Science

, Volume 32, Issue 17, pp 4619–4622 | Cite as

Electronic paramagnetic resonance investigation of the evolution of defects in zinc oxide during tribophysical activation

  • N. G KAKAZEY
  • T. V SRECKOVIC
  • M. M RISTIC
Article

Abstract

Zinc oxide powder was tribophysically activated by grinding in a vibromill in a continual regime in air. Investigations based on the application of the electronic paramagnetic resonance (EPR) method were performed, with the purpose of establishing laws for defect formation from the viewpoint of the evolution of the fine defect structure of dispersed systems. The main focus was on the influence of the duration of tribophysical activation (TA) on the process of defect formation. Six signals were seen on the EPR spectra obtained. These signals were identified, which enabled definition of the evolution scheme of the defect structure in polycrystalline samples of zinc oxide during tribophysical activation by grinding, based on the established dependence of the formation of different centres from the grinding time.

Keywords

Zinc Oxide Paramagnetic Centre Zinc Vacancy Electronic Paramagnetic Resonance Zinc Oxide Powder 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall 1997

Authors and Affiliations

  • N. G KAKAZEY
    • 1
  • T. V SRECKOVIC
    • 2
  • M. M RISTIC
  1. 1.Institute for the Problems of Material Science of the National Academy of Science of the UkraineKievUkraine
  2. 2.Joint Laboratory for Advanced Materials of the Serbian Academy of Sciences and ArtsBelgradeYugoslavia

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