The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li 0.5Fe2.5O4

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Single-phased spinel-related titanium-substituted Li0.5Fe 2.5O4 has been synthesized by sintering in air a mechanically pre-milled mixture of lithium carbonate, corundum-related iron (III) oxide and the rutile polymorph of titanium (IV) oxide at 700 °C (12 h). This temperature is ca. 450-500 °C less than the temperatures at which the material is normally prepared by conventional ceramic techniques. On replacing the rutile polymorph of titanium (IV) oxide in the pre-milled mixture by the anatase form the formation of single-phased titanium-substituted Li 0.5Fe2.5O4 was not achieved even after sintering the mixture at 1,000 °C (12 h).

Original languageEnglish
Pages (from-to)6333-6338
Number of pages6
JournalJournal of Materials Science
Issue number19
Publication statusPublished - Oct 2006


ASJC Scopus subject areas

  • Materials Science(all)
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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