University of Kansas

For the compound AB, the central maximum occurs at 0.5 mole fraction B. If the compound were of the form AB2, this central maximum would occur at XB = 0.667; whereas for a compound of the formula A2B, the peak would occur at XB = 0.333. The system Mg-Si forms the compound Mg2Si; the phase diagram for this system is shown in Figure 5. ................
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