Jacob, Thomas K and Pandit, Shashidhara S (1987) Spinel deoxidation equilibrium in the cobalt-manganese-aluminum-oxygen system: Experiment and modeling. In: International Journal for Materials Research/Zeitschrift für Metallkunde, 78 (9). pp. 652-656.Full text not available from this repository. (Request a copy)
The concentration and chemical potential of O in molten Co-Mn alloys equilibrated with (Co, Mn)$Al_2O_4$ spinel solid solns. and $\alpha-Al_2O_3$ were detected at 1873 K as a function of Mn concentration Compostion of the equilibrim spinel phase was detected by using electron probe microanal. The effect of Mn on the activity coefficient of O in liquid Co was derived. The deoxidation equilibrium was computed by using data on the activity coefficient of O and Mn in liquit Co, Gibbs energies of formation of pure spinels, and published interaction parameters. The activity-compn. relation for the spinel solid soln. was derived from a cation distribution model. The computations were in agreement with exptl. data only when the activity coefficient of Mn was taken as 0.22, rather than 0.154 suggested in the literature.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to Hanser Publisher|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||13 Jun 2008|
|Last Modified:||27 Aug 2008 13:26|
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