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

H. M. Widatallah; X. L. Ren; I. A. Al-Omari

doi:10.1007/s10853-006-0721-4

The influence of TiO₂ polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li _0.5Fe_2.5O₄

H. M. Widatallah^*, X. L. Ren, I. A. Al-Omari

^*Corresponding author for this work

Physics

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Single-phased spinel-related titanium-substituted Li_0.5Fe _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 _0.5Fe_2.5O₄ was not achieved even after sintering the mixture at 1,000 °C (12 h).

Original language	English
Pages (from-to)	6333-6338
Number of pages	6
Journal	Journal of Materials Science
Volume	41
Issue number	19
DOIs	https://doi.org/10.1007/s10853-006-0721-4
Publication status	Published - Oct 2006

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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

abstract = "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).",

author = "Widatallah, {H. M.} and Ren, {X. L.} and Al-Omari, {I. A.}",

note = "Funding Information: Acknowledgement We thank the Abdus Salam International Center for Theoretical Physics, ICTP, (Italy), and SIDA (Sweden) for financial and research support to HMW. We also thank the China Scholarship Council for financial support to XR. We are grateful to Professor FJ Berry for helpful discussion.",

year = "2006",

month = oct,

doi = "10.1007/s10853-006-0721-4",

language = "English",

volume = "41",

pages = "6333--6338",

journal = "Journal of Materials Science",

issn = "0022-2461",

publisher = "Springer Netherlands",

number = "19",

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T1 - The influence of TiO2 polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li 0.5Fe2.5O4

AU - Widatallah, H. M.

AU - Ren, X. L.

AU - Al-Omari, I. A.

N1 - Funding Information: Acknowledgement We thank the Abdus Salam International Center for Theoretical Physics, ICTP, (Italy), and SIDA (Sweden) for financial and research support to HMW. We also thank the China Scholarship Council for financial support to XR. We are grateful to Professor FJ Berry for helpful discussion.

PY - 2006/10

Y1 - 2006/10

N2 - 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).

AB - 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).

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The influence of TiO₂ polymorph, mechanical milling and subsequent sintering on the formation of Ti-substituted spinel-related Li _0.5Fe_2.5O₄

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