Study of the Kinetics of Reduction of alpha Fe2O3 to Fe3O4 - 2.

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Heizmann, J.J.
Becker, P
Baro, R.
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IRON AND STEEL METALLURGY - Physical Chemistry;
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It is demonstrated in the second part of this investigation that for alpha Fe//2O//3 particles larger than 4000 A in diam reduction to magnetite is no longer a purely chemical reaction but a mixed chemical and diffusion process. The mean value of the coefficient of diffusion and the activation energy of the diffusion process were determined.
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页码:625 / 636
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