arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.02700cond-mat.mtrl-sci
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形核与长大相转变中的界面演化

Interface evolution in phase transformation ruled by nucleation and growth

Massimo Tomellini

摘要:

本文提出了一个新相边界演化的解析模型。均相成核和非均相成核:前者包括二维和三维空间中的相变,后者包括平面固体基底上的成核和生长。该理论适用于空间关联核、任意形核速率和核功率增长律的一般情况。在异相成核的情况下,球形核已被假定和接触角的动力学的依赖关系进行了研究。通过与文献中的实验数据的比较,认为本方法的有效性,这些实验数据也包括通过ALD(原子层沉积)金属电沉积在固体基底上的氧化物生长和合金再结晶。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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