X-ray and thermogravimetric analyzes of mechanically activated nickel ferrites

Research output: Contribution to journalArticle

Abstract

This article shows a study of the effect of mechanical activation of the initial mixture of reagents NiO and Fe2O3 at different speeds of grinding bowl rotation on synthesis of nickel ferrite. Nickel ferrite was produced by the solid-phase synthesis at a temperature of 900 °C for 240 minutes. The obtained ferrite samples were investigated by thermal gravimetric and X-ray phase analysis. The Curie temperature values are obtained, as well as the magnitude of the change of detected instrument weight at the magnetic phase transition (ferromagnetic-paramagnetic) of nickel ferrite using thermal gravimetric curves (TG/DTG) with applied external magnetic field. Increasing of the homogeneity degree of ferrite materials with an increase in the mechanical activation rate is shown based on the data of X-ray phase analysis. The experimental results obtained from thermal, magnetic, and X-ray analyzes were compared.

Original languageEnglish
Pages (from-to)17-23
Number of pages7
JournalMaterials Science Forum
Volume970
DOIs
Publication statusPublished - 2019

Keywords

  • Ferrite
  • Mechanic activation
  • Nickel ferrites
  • Thermal analysis
  • X-Ray analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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