The Effect of Atmosphere on the Sintering of Fe3O4 and Fe2O3 Powders at Low Temperatures |
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| Authors: | P C HAYES |
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| Affiliation: | Department of Mining and Metallurgical Engineering, University of Queensland, Brisbane, Australia |
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| Abstract: | The sintering kinetics of submicrometer Fe3O4 and Fe2O3 powders were investigated at 300° to 500°C. Using measurements of the rate of reduction of surface area, the coefficients of surface diffusion on the oxides are estimated for a range of oxygen partial pressures. The surface-diffusion coefficients appear to be independent of P O2 for magnetite and only slightly dependent on P O2 for hematite. |
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