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Microwave-assisted preparation of submicron-sized FeTiO3powders

Authors
Journal
Ceramics International
0272-8842
Publisher
Elsevier
Volume
40
Issue
5
Identifiers
DOI: 10.1016/j.ceramint.2013.11.142
Keywords
  • A. Calcination
  • A. Microwave Processing
  • Co-Precipitation
  • Fetio3

Abstract

Abstract FeTiO3 powders were prepared from (Fe+Ti) mixed carbonate precursor by the microwave-assisted calcination method. The thermal analysis of the precursor was conducted by TG/DSC. It is demonstrated that the calcination process can be divided into three different stages: the removal of water, the decomposition of precursor and the formation of FeTiO3. A variety of techniques, such as XRD, FT-IR, SEM and EDS were utilized to characterize the samples. The results indicated that FeTiO3 powders can be prepared by microwave-assisted calcination for 20min at 450°C, while those cannot be obtained by conventional one until reaction time exceeds 120min at 600°C. The FeTiO3 powders prepared by microwave-assisted calcination are nearly spherical with limited aggregation and have a mean particle size of 400–500nm.

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