Diffusion in nickel oxide pelletsβeffect
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K. K. Kim; J. M. Smith
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Article
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1974
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American Institute of Chemical Engineers
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English
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## Abstract Diffusion rates were measured at 25Β°C and 1 atm by a steady state method in pellets of nonporous nickel oxide particles in order to determine the effects of sintering and chemical reduction. Sintering led to a striking decrease in diffusion flux; tortuosities above 100 were found for hi