Liquidus Projections

Liquidus surface calculations have two compositions axis and one temperature axis. When the liquid phase is set in Console Mode as PRESENT, only the monovariant lines with the liquid phase is mapped, as shown in this example using the TCS Metal Oxide Solutions Database (TCOX).

Calculating liquidus projections with more than three elements is not possible in Thermo‑Calc Graphical Mode.

"FeO"-MgO-SiO2

Calculated liquidus surface "FeO"-MgO-SiO2 in Fe-saturation.

Figure 1: Calculated liquidus surface "FeO"-MgO-SiO2 in Fe-saturation.

Calculated liquidus surface "FeO"-MgO-SiO2 in "Fe2O3"-MgO-SiO2 in air.

Figure 2: Calculated liquidus surface "Fe2O3"-MgO-SiO2 in air.

CaO-Al2O3-SiO2

Calculated phase diagram of the CaO-Al2O3-SiO2 system. See the caption for details.

Figure 3: Calculated phase diagram of the CaO-Al2O3-SiO2 system. See the text for a key to the abbreviations.

Key to Plot Abbreviations

Ano: anorthite

Cor: corundum

Pse-Wol: pseudo-wollastonite
C1A1: CaAl2O4

Cri: cristobalite

Ran: rankinite

C1A2: CaAl4O7

Geh: gehlenite

Tri: tridymite

C1A6: CaAl12O19

Hat: hatrurite

  

C3A1: Ca3Al2O8

Mul: mullite