Nanocomposite Formation in the Fe2O3-M (M=Al, Ti, Zn, Cu) Systems by Mechanical Alloying

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Nanocomposite formation of metal-metal oxide systems by mechanical alloying (MA) has been investigated at room temperature. The systems we chose are the Fe 2O 3-M(M=Al,Ti,Zn,Cu), where pure metals are used as reducing agent. It is found that nanocomposite powders in which Al 2O 3 and TiO 2 are dispersed in Fe matrix with nano-sized grains are obtained by mechanical alloying Fe 2O 3 with Al and Ti, respectively. However, the reduction of Fe 2O 3 with Cu by MA is not occurred. And the system of Fe 2O 3-Zn results in the formation of FeO plus ZnO after 120 h of milling. It is also shown that the magnetic evidence for the solid state reduction by mechanical alloying through changes in saturation magnetization and coercivity.

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Periodical:

Materials Science Forum (Volumes 449-452)

Edited by:

S.-G. Kang and T. Kobayashi

Pages:

253-256

Citation:

C. H. Lee et al., "Nanocomposite Formation in the Fe2O3-M (M=Al, Ti, Zn, Cu) Systems by Mechanical Alloying", Materials Science Forum, Vols. 449-452, pp. 253-256, 2004

Online since:

March 2004

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$38.00

[1] R.B. Schwarz, R.R. Petich and C.K. Saw: J. Non-Cryst. Solid, Vol. 76 (1985), p.281.

[2] U. Mizutani and C.H. Lee: J. Mat. Sci., Vol. 25 (1990), p.399.

[3] C. C. Koch: Nanostructured Mater., Vol. 2 (1993), p.109.

[4] J. Eckert, J.C. Holzer, C.E. Krill and W.L. Johnson: J. Mater. Res., Vol. 7 (1992), p.1751.

[5] G. G. Schaffer and P. G. McCormick: Appl. Phys. Lett., Vol. 55 (1989), P. 45.

[6] L. Takacs: Materials Letters, Vol. 13 (1992), p.119.

[7] L. Takacs and M. Pardavi-Horvath: J. Appl. Phys., Vol. 75 (1994), p.5864.

[8] J.M.D. Coey and H. Sun: J. Magn. Magn. Mater., Vol. 87 (1990), p. L251.

[9] C.H. Lee and Y.S. Kwon: Metals and Materials International, Vol. 8 (2002), p.151.

[10] L. Schultz and J. Wecker: J. Appl. Phys., Vol. 64 (1988), p.5711.

[11] J. Ding, W.F. Miao, R. Street and P.G. McCormick, Script Materialia, Vol. 35 (1996), p.1307.

[12] K. Tokumitsu: Mat. Sci. Forum, Vol. 88-90 (1992), p.715.

[13] P. Matteazzi and G. Le Caer: J. Am. Ceram. Soc., Vol. 74 (1991), p.1382.

[14] O. Kubaschewski and C.B. Alcock: “Metallurgical Thermochemistry”, Pergamon International Library (1983), p.273.

[15] W.H. Hall: J. Inst. Met., Vol. 75 (1948).