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Thermodynamics and Phase Diagrams

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Presentation on theme: "Thermodynamics and Phase Diagrams"— Presentation transcript:

1 Thermodynamics and Phase Diagrams
Alexandra Navrotsky

2 Phase Separation

3 Other exsolution topologies

4 Complete solubility in both high T and low T phases: vapor-liquid or liquid-solid equilibrium

5 Complete solubility in liquid, none in solids: eutectic

6 Eutectic, Solid Solution, Free Energies

7 Development of limited solid solubility acd a eutectic from a solid solution

8 Development of compound formation from a eutectic

9 Au-Cu: ordered compounds at low T, complete solid solution at highT

10 Au-Cd: stable compounds to the liquidus

11 Au-Na: stable stoichiometric compounds

12 Au-Ni: miscibility gap almost to the solidus

13 Au-Co: different structures, no compounds, eutectic, positive deviations from ideality in melt also

14 Ternary system: triangle representation

15 Ternary exsolution topologies

16 Ternary eutectic

17 Ternary Eutectic


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