Effect of Surface Curvature S.J.T.U. Phase Transformation and Applications Page 16/42 We can locate a geometrical surface between two phases in a way that assigns no mass to the surface. dG=G dm +Gudmn +ydA=8wrev [C] Phase I Phase IⅡ At equilibrium the reversible work is ZERO G-H-G u dm undmu +ydA O Surface Distance-> Figure 4.4 Concentration of component C as a function of distance.Surface is assumed to be at location where shaded areas are equal. SJTU Thermodynamics of Materials Spring2008©X.J.Jin Lecture 20 surfacePhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Spring 2008 © X. J. Jin Lecture 20 surface Page 16/42 Effect of Surface Curvature We can locate a geometrical surface between two phases in a way that assigns no mass to the surface. IIIIII δwdAdmGdmGdG rev = + + γ = At equilibrium the reversible work is ZERO. μ + μ IIIIII + γdAdmdm = 0 μ == GG