On the synthesis and cation distribution of aluminum-substituted spinel-related lithium ferrite

H. M. Widatallah, C. Johnson, F. J. Berry, E. Jartych, A. M. Gismelseed, M. Pekala, J. Grabski

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Spinel-related Al-substituted Li0.5Fe2.5O4 has been synthesized by sintering a mixture of Al-substituted corundum-related α-Fe2O3 and Li2CO3 at 700 °C which is ca. 450-500 °C lower than the temperatures normally used to prepare the material by conventional ceramic methods. The cation distribution in the material was investigated with X-ray diffraction, Mössbauer spectroscopy and magnetic measurements. Rietveld refinement of the X-ray diffraction data shows the Al3+ ions to substitute for both Fe 3+ and Li+ ions on octahedral B-sites while the displaced Li+ ions substitute for Fe3+ ones at tetrahedral A-sites. This structural model is consistent with Mössbauer and magnetic data.

Original languageEnglish
Pages (from-to)1105-1109
Number of pages5
JournalMaterials Letters
Volume59
Issue number8-9
DOIs
Publication statusPublished - Apr 2005

Fingerprint

Aluminum
Lithium
spinel
Ferrite
Cations
ferrites
lithium
Positive ions
Ions
aluminum
cations
synthesis
substitutes
X ray diffraction
ions
Rietveld refinement
Corundum
Aluminum Oxide
Magnetic variables measurement
diffraction

Keywords

  • Ceramics
  • Mössbauer spectroscopy
  • Sintering
  • X-ray diffraction

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

On the synthesis and cation distribution of aluminum-substituted spinel-related lithium ferrite. / Widatallah, H. M.; Johnson, C.; Berry, F. J.; Jartych, E.; Gismelseed, A. M.; Pekala, M.; Grabski, J.

In: Materials Letters, Vol. 59, No. 8-9, 04.2005, p. 1105-1109.

Research output: Contribution to journalArticle

Widatallah, H. M. ; Johnson, C. ; Berry, F. J. ; Jartych, E. ; Gismelseed, A. M. ; Pekala, M. ; Grabski, J. / On the synthesis and cation distribution of aluminum-substituted spinel-related lithium ferrite. In: Materials Letters. 2005 ; Vol. 59, No. 8-9. pp. 1105-1109.
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AU - Pekala, M.

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