论文标题
相变的界面演变由成核和生长统治
Interface evolution in phase transformation ruled by nucleation and growth
论文作者
论文摘要
提出了新阶段边界进化的分析模型在成核和生长统治的转化中。都考虑了均质和异质成核：前者包括2D和3D空间中的转换以及后者的成核和平面固体底物的生长。该理论是针对空间相关的核，任意成核率和核的功率生长定律的一般情况制定的。在异质成核的情况下，已经假定了球形核并研究了动力学对接触角的依赖性。通过与文献的实验数据进行比较，认为本方法的有效性还包括固体基材和合金再结晶的ALD（原子层沉积）金属电沉积的氧化物生长。
An analytical model for the evolution of the boundary of the new phase in transformations ruled by nucleation and growth is presented. Both homogeneous and heterogeneous nucleation have been considered: The former includes transformations in 2D and 3D space and the latter nucleation and growth on flat solid substrate. The theory is formulated for the general case of spatially correlated nuclei, arbitrary nucleation rate and power growth law of nuclei. In the case of heterogeneous nucleation, spheroidal nuclei have been assumed and the dependence of the kinetics on contact angle investigated. The validity of the present approach is deemed through comparison with experimental data from literature which also comprise oxide growth by ALD (Atomic Layer Deposition) metal electrodeposition at solid substrate and alloy recrystallization.
