Figure 14

(a) Evolution of the primary spacing of the tilted dendritic arrays as a function of the thermal gradient G for V_p = 1250 and 1500 μm/s; (b) evolution of the primary spacing as a function of pulling velocity V_p for G = 0.14 K/μm, G = 0.35 K/μm and G = 0.7 K/μm.