The phase diagram between lead and tin shows the eutectic invariant ... Application of the Gibbs Phase Rule to this system indicates that at the eutectic temperature there are no degrees of freedom, ...

and analyses of the melts formed by dissociation at pressures above the eutectic point, we have constructed a three-dimensional phase diagram for the system in the pressure-range 1–300 ...

The phase diagram shown is a partial diagram for the Aluminum-Copper system showing the aluminum rich end. The composition of a typical structural alloy is shown by the vertical green bar on this ...