A hypothetical phase diagram is shown in Figure 11-25
(a) Are there any intermetallic compounds present? If so, identify them and determine whether they are stoichiometric or nonstoichiometric.
(b) Identify the solid solutions present in the system. Is either material A or B allotropic? Explain.
(c) Identify the three-phase reactions by writing down the temperature, the reaction in equation form, the composition of each phase in the reaction, and the name of the reaction.
Figure 11-25
