RF thermal plasma synthesis of ferrite nanopowders from metallurgical wastes

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RF thermal plasma synthesis of zinc-ferrite nanopowders has been studied from metallurgical wastes of high iron oxide and zinc oxide and/or hydroxide content. XRD measurements of the products revealed that an extensive spinel formation took place on RF plasma treatment. However, instead of expectable ZnFe2O4, formation of zinc ferrous ferrites (Zn 0.7Fe2,3O4 and Zn0.4Fe 2,6O4) was concluded from the XRD investigations. Addition of some nickel salt to the waste mixture resulted in the formation of Ni-Zn ferrites of different composition. Measurements of magnetic properties revealed that the saturation magnetization of ferrite powders produced by thermal plasma treatment was much higher than that of ferrites synthesized by the conventional ceramic route.

Original languageEnglish
Pages (from-to)2359-2362
Number of pages4
JournalKey Engineering Materials
Issue numberIII
Publication statusPublished - Nov 25 2004
EventProceedings of the 8th Conference and Exhibition of the European Ceramic Society - Istanbul, Turkey
Duration: Jun 29 2003Jul 3 2003



  • Thermal plasma
  • Waste
  • XRD
  • Zinc ferrite

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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