The deoxidation equilibrium of aluminum in liquid cobalt has been measured at the temperature ranges from 1873 to 1973 K using alumina crucibles with a view to understanding the equilibrium between aluminum and oxygen in liquid cobalt.
The temperature dependence of the deoxidation constants, KAl(=aAl2·aO3⁄aAl2O3(s)), for the deoxidation reaction in liquid cobalt, i.e.:
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oindentwas found to be:
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oindentwhile the effect of temperature on the deoxidation product, KAl′(=[%Al]2[%O]3) and the effect of aluminum on the activity coefficient of oxygen in liquid cobalt were determined by the expressions:
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