Abstract
Electrical conductivity has been measured to monitor the reequilibration kinetics for single crystals of NiO-Cr2O3 solid solutions. It has been found that the rate for the reduction process is higher than that for the oxidation runs, thus indicating that the obtained kinetic data are not purely bulk controlled. The following expressions for the apparent chemical diffusion coefficient have been obtained within the temperature range 900–1200°C and oxygen partial pressure range 1–10−5 atm:
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Nowotny, J., Obłakowski, J., Sadowski, A. et al. Reequilibrium kinetics of NiO-Cr2O3 solid solutions. Oxid Met 14, 437–448 (1980). https://doi.org/10.1007/BF00603611
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DOI: https://doi.org/10.1007/BF00603611