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Development of pure and doped gamma ferric oxide

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Abstract

Optimum conditions and experimental details for the formation of γ-Fe2O3 from goethite have been worked out. In another method, a cheap complexing medium of starch was employed for precipitating acicular ferrous oxalate, which on decomposition in nitrogen and subsequent oxidation yielded acicular γ-Fe2O3. On the basis of thermal decomposition in dry and moist nitrogen,dta, xrd, gc and thermodynamic arguments, the mechanism of decomposition was elucidated. New materials obtained by doping γ-Fe2O3 with 1–16 atomic percent magnesiu, cobalt, nickel and copper, were synthesised and characterized.

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Authors and Affiliations

  1. Department of Chemistry, Indian Institute of Technology, 400 076, Bombay, India

    M R Anantharaman, K Seshan, S N Shringi & H V Keer

  2. Department of Physics, Indian Institute of Technology, 400 076, Bombay, India

    S N Shringi

Authors
  1. M R Anantharaman
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  2. K Seshan
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  3. S N Shringi
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  4. H V Keer
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Anantharaman, M.R., Seshan, K., Shringi, S.N. et al. Development of pure and doped gamma ferric oxide. Bull. Mater. Sci. 6, 59–64 (1984). https://doi.org/10.1007/BF02744170

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  • DOI: https://doi.org/10.1007/BF02744170

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