Córdoba-Torres P, Mesquita T J, Bastos I N, Nogueira R P
UMR5266 and 5631 INP Grenoble-CNRS-UJF, SIMAP and LEPMI, BP 75, 38402 St Martin d'Hères, France.
Phys Rev Lett. 2009 Feb 6;102(5):055504. doi: 10.1103/PhysRevLett.102.055504.
The kinetic roughening of dissolving polycrystalline pure iron has been studied. A depth analysis of surface images has shown two consecutive growth regimes characterized by different scaling anomalous properties: an initial intrinsic anomalous scaling evolving in the thick film limit towards the theoretically conjectured faceted anomalous scaling. This represents the first experimental evidence of such scaling as well as of such transition. The dynamics presented here may account for the striped surface pattern observed during the evolution of metals or alloys in a large number of processes.
对溶解的多晶纯铁的动力学粗化进行了研究。对表面图像的深度分析显示出两种连续的生长模式，其特征在于不同的标度反常特性：一种初始的本征反常标度，在厚膜极限下朝着理论推测的刻面反常标度演化。这代表了这种标度以及这种转变的首个实验证据。这里呈现的动力学可能解释了在大量过程中金属或合金演化期间观察到的条纹状表面图案。
