Skip to main content
SpringerLink
Log in

Study by thermogravimetry, electrical conductivity and IR spectrometry of the phase transition for manganese cation deficient spinels

  • Published:
Journal of Materials Science Aims and scope Submit manuscript

Abstract

Thermogravimetry, electrical conductivity and IR spectrometry were used to study the crystal structure change of the metastable manganese cation deficient spinels that occur during the oxidation of manganese ions above 500° C. The kinetic of the transformation is found to be governed by a nucleation growth mechanism with an activation energy varying with the amount of Mn3+ ions. The nature of the inversion products depends on the manganese substitution extent. We observe for a substitution extent x<0.72 a phase with a corundum structure which is a solid solution of α-(MnFe)2O3 and for x>0.72 a mixture of two phases α-(MnFe)2O3 + Mn2O3 of orthorhombic structure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. P. Tailhades, M. El Guendouzi, A. Rousset and B. Gillot, C. R. Acad. Sci., Paris, Série II 299 (1984) 13.

    Google Scholar 

  2. B. Gillot, M. El Guendouzi, P. Tailhades and A. Rousset, React. Solids 1 (1986) 139.

    Google Scholar 

  3. E. H. L. J. Dekker and G. D. Riek, Rev. Int. Hautes Temp. Refract., 11 (1974) 187.

    Google Scholar 

  4. B. Gillot, M. El Guendouzi, A. Rousset and P. Tailhades, J. Mater Sci. 21 (1986) 2926.

    Google Scholar 

  5. M. El Guendouzi and B. Gillot, Mater. Chem. Phys. 13 (1985) 179.

    Google Scholar 

  6. K. L. Mampel, Z. Phys. Chem. A 187 (1940) 43.

    Google Scholar 

  7. B. Delmon, “Introduction à la Cinétique Hétérogène”, (Technip, Paris, 1969).

    Google Scholar 

  8. S. Kachi, K. Momiyama and S. Shimizu, J. Phys. Soc. Jpn 18 (1963) 106.

    Google Scholar 

  9. F. E. De Boer and P. W. Selwood, J. Amer. Chem. Soc., 76 (1954) 3365.

    Google Scholar 

  10. W. Feitknecht and U. Mannweiler, Helv. Chim. Acta 50 (1967) 570.

    Google Scholar 

  11. W. B. White and V. G. Keramidas, Spectrochim. Acta 28A (1971) p. 501.

    Google Scholar 

  12. A. Navrotsky and O. Kleppa, J. Inorg. Nucl. Chem. 29 (1967) 2701.

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Faculté des Sciences Mirande, Laboratoire de Recherches sur la Réactivité des Solides, B.P. 138, 21004, Dijon Cedex, France

    B. Gillot & M. El Guendouzi

  2. Faculté des Sciences II, Université Hassan II, Casablanca, Morocco

    M. Laarj

  3. Laboratoire de Chimie des Matériaux Inorganiques, Université Paul Sabatier, Toulouse III, 118 route de Narbonne, 31062, Toulouse Cedex, France

    P. Tailhades & A. Rousset

Authors
  1. B. Gillot
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. El Guendouzi
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. M. Laarj
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. P. Tailhades
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. A. Rousset
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Gillot, B., El Guendouzi, M., Laarj, M. et al. Study by thermogravimetry, electrical conductivity and IR spectrometry of the phase transition for manganese cation deficient spinels. J Mater Sci 23, 3342–3347 (1988). https://doi.org/10.1007/BF00551316

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00551316

Keywords

Search

Navigation