先进材料疑固实验室 Morphology control of crystals Laboratory of Advanced Materials Solidification Since during solidification of a liquid heat is released,the growth rate is very often controlled by the heat flow from the interface into the solid,liquid or both. Solid Liquid Continuous growth: R=LAT Growth based on surface nucleation: -b R2 M2 exp △T Growth based on spiral growth 4G ed Ma 3=43△T2 h△G 熟 上海充通大￥ SHANGHAI JIAO TONG UNIVERSITYMorphology control of crystals Since during solidification of a liquid heat is released, the growth rate is very often controlled by the heat flow from the interface into the solid, liquid or both. Q         ∆ − = Tk b R2 µ2 exp 2 R3 3 ∆Tk = µ ⋅ R1 = µ1∆Tk Continuous growth: Growth based on surface nucleation: Growth based on spiral growth