Published August 2004
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The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li0.5Fe2.5O4
- 1. Abdus Salam International Centre for Theoretical Physics, Trieste (Italy)
- 2. Department of Physics, University of Khartoum, Khartoum (Sudan) and Department of Physics, Sultan Qaboos University, Muscat (Oman)
- 3. Department of Chemistry, Open University, Milton Keynes (United Kingdom)
- 4. Department of Physics, Sultan Qaboos University, Muscat (Oman)
Description
Single-phased spinel-related titanium-substituted Li0.5Fe2.5O4 has been synthesized by sintering in air a mechanically pre-milled mixture of lithium carbonate, corundum-related iron ) oxide and the rutile polymorph of titanium (IV) oxide at 700 deg. C (12h). This temperature is ca. 450- 500 deg. 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 Li0.5Fe2.5O4 was not achieved even after sintering the mixture at 1000 deg. C (12h). (author)
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Additional details
Publishing Information
- Imprint Pagination
- 14 p.
- Report number
- IC--2004/68
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36080696
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CERAMICS; CORUNDUM; IRON 57; IRON IONS; IRON OXIDES; IRON-ALPHA; LITHIUM CARBONATES; LITHIUM IONS; MILLING; MIXTURES; MOESSBAUER EFFECT; RUTILE; SINTERING; SPINELS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; TIME DEPENDENCE; TITANIUM OXIDES; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; CARBON COMPOUNDS; CARBONATES; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; DISPERSIONS; ELEMENTS; EVEN-ODD NUCLEI; FABRICATION; INTERMEDIATE MASS NUCLEI; IONS; IRON; IRON COMPOUNDS; IRON ISOTOPES; ISOTOPES; LITHIUM COMPOUNDS; MACHINING; MATERIALS; METALS; MINERALS; NUCLEI; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; RADIOACTIVE MATERIALS; RADIOACTIVE MINERALS; SCATTERING; STABLE ISOTOPES; TEMPERATURE RANGE; TITANIUM COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Notes
- 18 refs, 6 figs, 1 tab