Five phases exist in the system Fe-Si: Fe3Si, Fe2Si, Fe5Si3, FeSi, α-and β-FeSi2. All phases could be prepared by chemical transport with iodine as transport agent in the temperature range between T1 (700 °C) and T2 (1030 °C). In a attempted systematic clarification of the chemical transport reactions of all phases in the system, the effective transport equilibria were determined. Thermodynamic calculations show satisfactory agreement between calculation and experiment.
在Fe-Si系统中存在五个相:Fe3Si、Fe2Si、Fe5Si3、FeSi、α-和β-FeSi2。所有相都可以通过使用碘作为传输剂在T1(700℃)和T2(1030℃)之间的温度范围内进行化学传输制备。在试图系统澄清系统中所有相的化学传输反应的过程中,确定了有效的传输平衡。热力学计算显示计算和实验之间有令人满意的一致性。