S.J.T.0. Phase Transformation and Applications Page 6/36 45.7K 3×105Pa Liquid ainssald Solid B(F=1 菱形 液 A Gas 单斜 Triple point (F=2) R 3.33 M' 1,33 R Temperature→ 368.6 386392 Figure 8.1 Phase diagram for water (one component).In the T/K phase diagram for water,the solid-liquid equilibrium line slopes up and to the left from the triple point because the volume change upon solidification is positive.In most mate- 图6-4硫系相图 rials.the volume change upon solidification is negative,and the solid-liquid equilibrium line slopes up and to the right. SJTU Thermodynamics of Materials Fall 2011 ©X.J.Jin Lecture 14 Phase diagram IPhase Transformation and Applications S. J. T. U. SJTU Thermodynamics of Materials Fall 2011 © X. J. Jin Lecture 14 Phase diagram I Page 6/36