Abstract
Metal-silica nanocomposites with different metal volume fractions have been prepared via solid state exchange reactions induced by ball milling followed by a reduction treatment in H2 flux. In nickel-containing mixtures oxygen transfers directly from NiO to Si while NiO is reduced to Ni. When NiO is present in a large ratio, its excess can be reduced by a thermal treatment in H2 flux. Nickel crystallites are obtained with nanometer size in the milling process and there is no significant growth during thermal treatment. Similar process conditions applied to Fe-containing mixtures give rise to a more complex reaction path which prevents the complete conversion of Fe(III) to Fe. Nickel-silica and iron-silica nanocomposites are also produced by ball milling mixtures of either nickel or iron with amorphous silica.
Similar content being viewed by others
References
C. C. Koch, in Materials Science and Technology: A Comprehensive Treatment, edited by R. W. Cahn, P. Haasen, and E. J. Kramer (VCH Verlagsgeselleschaft, Weinhein, 1991), Vol. 5, Chap. 5.
F. H. Froes and J. J. de Barbadillo, Structural Applications of Mechanical Alloying (ASM INTERNATIONAL, Materials Park, OH, 1993).
G. B. Schaffer and P. G. McCormick, Metall. Trans. A21, 2789 (1990).
P. Matteazzi and G. L. Le Caër, Hyperf. Inter. 68, 177 (1991).
D. Basset, P. Matteazzi, and F. Miani, Mater. Sci. Eng. A168, 149 (1993).
M. Pardavi-Horvath and L. Tackás, J. Appl. Phys. 73, 6958 (1993).
L. Tackás, Nanostr. Mater. 2, 241 (1993).
L. Tackás and M. Pardavi-Horvath, J. Appl. Phys. 75, 5864 (1994).
T. Ambrose, A. Gavrin, and C. L. Chien, J. Magn. Magn. Mater. 116, L311 (1992).
S. Linderoth and M. S. Pedersen, Appl. Phys. 75, 5867 (1994).
C. de Julian, A. K. Giri, M. P. Morales, and J. M. Gonzáles, Scripta Metall. Mater. 33, 1079 (1995).
C. L. Chien, J. Appl. Phys. 69, 5267 (1991).
R. Roy, in Nanophase and Nanocomposite Materials, edited by S. Komarneni, J. C. Parker, and G. J. Thomas (Mater. Res. Soc. Symp. Proc. 286, Pittsburgh, PA, 1993), p. 241.
J. W. E. Coenen, Appl. Catal. 56, 65 (1989).
S. Roy, D. Das, D. Chakravorty, and D. C. Agrawal, J. Appl. Phys. 74, 4746 (1993).
S. Roy and D. Chakravorty, J. Mater. Res. 9, 2314 (1993).
J. P. Wang and H. L. Luo, J. Appl. Phys. 75, 7425 (1994).
R. D. Shull, J. J. Ritter, A. J. Shapiro, L. J. Swartzendruber, and L. J. Bennett, in Multicomponent Ultrafine Microstructures, edited by L. E. McCandlish, D. E. Polk, R. W. Siegel, and B. H. Kear (Mater. Res. Soc. Symp. Proc. 132, Pittsburgh, PA, 1989), p. 179.
N. Claussen, D. E. Garcia, and R. Janssen, J. Mater. Res. 11, 1884 (1996).
K. M. Unruh, B. M. Patterson, J. R. Beamish, N. Mulders, and S. I. Shah, J. Appl. Phys. 68, 3015 (1990).
B. E. Warren, X-Ray Diffraction (Addison-Wesley, Reading, MA, 1969), p. 264.
G. Concas, F. Congiu, A. Corrias, C. Muntoni, G. Paschina, and D. Zedda, Z. Naturforsch. 51a, 915 (1996).
A. Corrias, G. Paschina, P. Sirigu, and D. Zedda, Mater. Sci. Forum 235–238, 199 (1997).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Corrias, A., Ennas, G., Musinu, A. et al. Iron-silica and nickel-silica nanocomposites prepared by high energy ball milling. Journal of Materials Research 12, 2767–2772 (1997). https://doi.org/10.1557/JMR.1997.0368
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1997.0368