Abstract
The physicochemical transformations induced by mechanochemical and thermal treatments of Al–Fe3O4 mixtures under Ar atmosphere have been investigated. This reaction system underwent a self-sustained reaction after 37 min of high-energy milling, yielding α-Fe and α-Al2O3. The mixtures activated for shorter times showed the same reaction when thermally treated in Ar atmosphere, at approximately 660°C. Depending on the heating conditions, the reaction did or did not occur in a self-sustained way. The influence of the processing parameters on the synthesis and properties of the different materials obtained has been analyzed.
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REFERENCES
V. V. Boldyrev and E. G. Avvakumov, Russ. Chem. Rev. Engl. Transl. 40, 847 (1971).
I. J. Lin and S. Nadiv, Mater. Sci. Eng. 39, 193 (1979).
P. Matteazzi, G. Le Caër, and A. Mocellin, Ceram. Intern. 23, 39 (1996).
G. B. Schaffer and P. G. McCormick, Metall. Trans. A 22A, 3019 (1991).
P. Millet and T. Hwang, J. Mater. Sci. 31, 351 (1996).
E. F. Aglietti and J. M. Porto López, Mater. Res. Bull. 27, 1205 (1992).
P. Matteazzi and G. Le Caër, J. Amer. Ceram. Soc. 75, 2749 (1992).
N. J. Whelham, T. Kerr, and P. Willis, J. Amer. Ceram. Soc. 82, 2332 (1999).
L. Takacs, Nanostruct. Mater. 2, 241 (1993).
N. J. Whelham, P. Willis, and T. Kerr, J. Amer. Ceram. Soc. 83, 33 (2000).
R. Subramanian, C. G. McKamey, J. H. Schneibel, L. R. Buck, and P. A. Menchhofer, Mater. Sci. Eng. A 254, 119 (1998).
H. T. Kim, S. H. Kim, S. Nahm, J. D. Byun, and Y. Kim, J. Amer. Ceram. Soc. 82, 3043 (1999).
V. Šepelák, U. Steinike, D. C. Uecker, S. Wißmann, and K. D. Becker, J. Solid State Chem. 135, 52 (1998).
L. Takacs, Mater. Lett. 13, 119 (1992).
P. M. Botta, E. F. Aglietti, and J. M. Porto López, Mat. Chem. Phys. in press (2001).
G. B. Schaffer and P. G. McCormick, Metall. Trans. A 21A, 2789 (1990).
H. C. Yi and J. J. Moore, J. Mater. Sci. 25, 1159 (1990).
P. M. Botta, E. F. Aglietti, and J. M. Porto López, Thermochim. Acta 363, 143 (2000).
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Botta, P.M., Aglietti, E.F. & López, J.M.P. Transformations Induced by Mechanochemical Activation in the Al–Fe3O4 System. Journal of Materials Synthesis and Processing 8, 345–350 (2000). https://doi.org/10.1023/A:1011354730345
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DOI: https://doi.org/10.1023/A:1011354730345