 real oxide systems 1) CaO-TiO2-SiO2 in Fig 5.60 of FAHummel’s book

2) K2O-Al2O3-SiO2 from “Physical Ceramics” by Chiang-Birnie-Kingery

Lorenzo de Medici Ruler of Florence and Art Patron                       Statue of Lorenzo from the courtyard of the Uffizi Gallery, Florence Lorenzo de Medici Ruler of Florence and Art Patron 1449 - 1492    Whoever wants to be happy, let him be so: about tomorrow there's no knowing.                                                 —Lorenzo The Magnificent

Try 1600, 1400, 1000, 800° isothermal sections ! Medici comp, taking molar equivalent of K2O+ Na2O+CaO = Try 1600, 1400, 1000, 800° isothermal sections ! Fig. 7.26. Isothermal cut in the K2O-Al2O3-SiO2 diagram at 1200°C

3) CaO-Al2O3-SiO2

4) Na2O-CaO-SiO2 Fig. 6. Phase equilibrium diagram for the system Na2O-CaO-SiO2 illustrating the isothermal section at 1100° of the location of a typical French soft-paste porcelain. As the temperature increases, leading to a greater allowable variation of firing conditions than otherwise would have been allowed.

Na2O-CaO-SiO2 continued Try 1600, 1400, 1000, 800° isothermals !

Phase transf.

 vertical sections, important but very difficult to draw to understand the ternary phase diagram completely 1) cooling path ( study) 2) sections (horizontal sections) 3) sections ex1) a solid solution system (α, β,γ) with one ternary eutectic (E)

Fig. 178. Vertical sections through the space model of Fig. 173a

ex2) congruently melting binary compound in the ternary

ex3) a simple ternary eutectic with a miscibility gap

K Fig. 5.69a. Vertical Section A-p Fig. 5.69c. Vertical Section c-B L1+L2+A Fig. 5.69a. Vertical Section A-p Fig. 5.69c. Vertical Section c-B K Fig. 5.69b. Vertical Section a-b Fig. 5.69d. Vertical Section d-B