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On the kinetics of mechanical alloying

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Abstract

The kinetics of solid-state displacement reactions during mechanical alloying have been investigated. The effects of charge ratio and ball size on the progress of the reaction between CuO and Fe have been evaluated from measurements of ignition temperature, combustion time, and crystallite size. The reaction kinetics are shown to increase with charge ratio. This is rationalized in terms of the effect of charge ratio on the number of ball/particle collisions. Ball size influences reaction kinetics through both the particle collision frequency and collision energy.

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Authors and Affiliations

  1. Department of Mining and Metallurgical Engineering, The University of Queensland, 4072, Queensland, Australia

    G. B. Schaffer (Lecturer)

  2. Department of Mechanical Engineering, The University of Western Australia, 6009, Nedlands, Western Australia, Australia

    P. G. McCormick (Professor)

Authors
  1. G. B. Schaffer
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  2. P. G. McCormick
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Schaffer, G.B., McCormick, P.G. On the kinetics of mechanical alloying. Metall Trans A 23, 1285–1290 (1992). https://doi.org/10.1007/BF02665060

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