上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Usage of phase diagrams 4 4 To figure out the activity data 30 4代 20 When two phases are at equilibrium, the chemical potential of each components are equal (E4)- 100 a(s In)=) Lp:(s In)=uo+RTIn a=Li)+RT In a △G=4a0-4o T→Tm T Solid->liquid △G=△Hm-TASm=△Hm(I- m 11
Usage of phase diagrams 4 To figure out the activity data When two phases are at equilibrium, the chemical potential of each components are equal 11
上游充通大粤 SHANGHAI JIAO TONG UNIVERSITY Ternary Diagrams Ternary 3D A series of isothermal sections,stacked up vertically Gibbs triangle Lines of constant A content are parallel to the line connecting the points representing pure B and pure C All the combinations of D and E fall on the line between two The lever rule applied to these system 12
Ternary Diagrams 12