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 language | English |
|---|---|
| Pages (from-to) | 1105-1109 |
| Number of pages | 5 |
| Journal | Materials Letters |
| Volume | 59 |
| Issue number | 8-9 |
| DOIs | |
| Publication status | Published - Apr 2005 |
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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 journal › Article
}
TY - JOUR
T1 - On the synthesis and cation distribution of aluminum-substituted spinel-related lithium ferrite
AU - Widatallah, H. M.
AU - Johnson, C.
AU - Berry, F. J.
AU - Jartych, E.
AU - Gismelseed, A. M.
AU - Pekala, M.
AU - Grabski, J.
PY - 2005/4
Y1 - 2005/4
N2 - 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.
AB - 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.
KW - Ceramics
KW - Mössbauer spectroscopy
KW - Sintering
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=13444252653&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=13444252653&partnerID=8YFLogxK
U2 - 10.1016/j.matlet.2004.12.017
DO - 10.1016/j.matlet.2004.12.017
M3 - Article
AN - SCOPUS:13444252653
VL - 59
SP - 1105
EP - 1109
JO - Materials Letters
JF - Materials Letters
SN - 0167-577X
IS - 8-9
ER -