✍ Scribed by J. Chipman; T.P. Floridis
No coin nor oath required. For personal study only.
Experimental data on the dist~bution of aluminum between liquid iron and silver at 1600°C are presented. The effects of carbon and silicon in the iron are shown. Recent data of Hillert on the cell: Al(s) /AlClr in NaCI(l) [AI-Ag alloy(s) are extrapolated to obtain the activity of aluminum in liquid Ag-Al solutions. This and the distribution data lead to values for the activity coefficient of aluminum in liquid iron. In the infinitely dilute solution in pure iron, r~r"=0.031 at 1600°. The value of log y~r increases almost linearly with the concentration of Al, C, or Si.
The solubility of graphite in iron decreases with increasing aluminum content.
📜 SIMILAR VOLUMES
The individual subsystems of the basic five component oxide system CaO-SiO2-AI203-Fe203-SO 3 are analysed for their subsolidus phase relationship. The study is confined to the portion of the system in which C2S, the key mineralogical component of belite clinker is present. As a result eighteen equil
Where Xc = atom fraction of carbon and X,, = atom fraction of manganese. The linear correlation coefbcients of these relations are larger than 0.992. Both carbon and manganese depress ,v,Y linearly and the effect of carbon is almost two-fold stronger than that of manganese.
The mineralogical (phase) composition of sulphoaluminate belite cement clinkers was calculated using phase compatibility data of the relevant portion of the five component oxide system CaO-SiO2-A1203-Fe203-SO 3 and was plotted in the plane of three component raw mix. In result a phase fields map (PF