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  1. No Access

    Article

    Modelling of heterogeneous gas-solid reactions

    A general modelling is presented of the heterogeneous gas-solid reactions relevant to the field of extractive metallurgy. The unreacted core shrinking (topochemical) and the homogeneous model are presented as ...

    D. Papanastassiou, G. Bitsianes in Metallurgical Transactions (1973)

  2. No Access

    Article

    Mechanisms and kinetics underlying the oxidation of magnetite in the induration of iron ore pellets

    The chemical and transport phenomena that may participate in controlling the oxidation rate of magnetite pellets were examined. Reaction rates were measured under a varying range of conditions including temper...

    D. Papanastassiou, G. Bitsianes in Metallurgical Transactions (1973)

  3. No Access

    Article

    Uranium-silicon alloys

    A tentative U-Si phase diagram was determined by the present authors about 10 years ago. A description of the experimental work has not been published in the open literature, although the resulting phase diagr...

    A. Kaufmann, B. Cullity, G. Bitsianes in JOM (1957)

  4. No Access

    Article

    Solid State Diffusion in the Reduction of Magnetite

    Parabolic rate constants were determined for the formation of wüstite by the solid state reaction between magnetite and iron. The reaction was diffusion controlled and inert marker studies indicated that the m...

    J. O. Edstrom, G. Bitsianes in JOM (1955)