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Vertical Sections
30% A70% C Temperature 30% A70% B L L + α L + β L + α + β α + β β α

   

A Temperature C B
30% A70% C Temperature 30% A70% B L + S S L
100% A Temperature 50% B50% C S L L + S
70% A30% C Temperature 50% A50% B S L L + S
Drag a vertical section out
of the space model to see it.
This ternary phase diagram
shows complete solid solubility.

   

A Temperature C B
30% A70% C Temperature 30% A70% B L L + α L + β L + α + β α + β β α
100% A Temperature 50% B50% C L L + α α + β α L + α + β
70% A 30% C Temperature 50% A 50% B L L + α L + β L + α + β α + β α
Drag a vertical section out
of the space model to see it.
Two of the binaries making up this
ternary phase diagram have a eutectic
point. The third shows complete
solid solubility. There is a eutectic valley
linking the two eutectic points.

   

A Temperature C B
30% A 70% C Temperature 30% A 70% B L L + α L + β L + α + β α + β + γ α + β α + γ L + α + γ L + β + γ
100% A Temperature 50% B 50% C L L + α L + γ L + α + γ α + β + γ β + γ L + α + β L + β + γ α + γ α
70% A30% C Temperature 50% A 50% B L L + α L + γ α + β + γ β + γ L + β + γ α + γ L + α + γ L + β
Drag a vertical section out
of the space model to see it.
This ternary phase diagram has a
ternary eutectic point. This is the
lowest melting point in the system where
L → α + β + γ.

Each of the sides of the ternary are
binary phase diagrams containing
binary eutectics.

   

A C B Temperature
100% A Temperature 50% B 50% C L L + α α + β + γ β + γ α + γ L + α + γ L + β + L + β γ α L + + β α
30% A70% C Temperature 30% A 70% B L L + α α + β + γ α + γ L + α + γ L + β + L + β γ α L + + β L + γ β β + γ α + β
70% A30% C Temperature 50% A 50% B L L + α α + β + γ α + γ L + α + γ α L + + β α + β
Drag a vertical section out
of the space model to see it.
This ternary phase diagram has a
class II invariant point. This is the
lowest melting point in the system where
L + β → α + γ.

The sides of the ternary are binary phase
diagrams. Two contain a binary eutectic
point and one has a binary peritectic
point.

   

A C B Temperature
30% A 70% C Temperature 30% A 70% B L α + β + γ α + γ α L + + β α + β L + α + γ L + γ L + β +γ L + β
70% A 30% C Temperature 50% A 50% B L α + β + γ α + γ α L + + β α + β L + α + γ L + γ L + β +γ L + β α L + α
100% A Temperature 50% B 50% C L α + β + γ α L + + β L + γ L + β +γ α L + α + L + α γ α + γ L + β α + β β + γ
Drag a vertical section out
of the space model to see it.
This ternary phase diagram has a
class III invariant point. This is the
lowest melting point in the system where
L + β + γ → α.

The sides of the ternary are binary phase
diagrams. Two contain a binary peritectic
point and one has a binary eutectic
point.