Application of a rule of the lever in двухкомпонентных systems.

For двухкомпонентных systems application of a rule of the lever is reduced to consideration appropriate коннод, which ends show point of structures of phases which are taking place in balance, at

 

 

 

Than itself коннода by a vertical of initial structure is divided into two pieces, which lengths (in return proportionality) characterize quantities(amount) of equilibrium phases. Let's assume, that initial расплав of structure М ' (fig. 75) up to temperature t is cooled. At this temperature in balance are a liquid phase, which structure is expressed by a point n, and the firm phase (crystals of connection АВ), which structure is expressed by a point k, laying on a vertical of structure of connection АВ. The initial structure can be expressed by a point М, laying on crossing конноды nk with a vertical of initial structure М'т (the structures М'иМ are identical). By a rule of the lever the contents at temperature t of a liquid phase (point п) and crystal phase АВ (the point k) will be defined(determined) from expressions: