In-situ observation of nucleation on a rough chilling surface in NH 4Cl-H2O solution

Weidong Huang, Ying Zhang, Meng Wang, Xin Lin, Senfeng Zhu

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

The nucleation behaviors of NH4Cl crystal on a rough chilling surface immerged in NH4Cl-H2O solution were investigated. A phenomenon was found that the nuclei are formed periodically on certain spots of the undercooled surface. The relationship between the surface roughness and the nucleation site selection was investigated on abrasive paper polished aluminum substrate, and it is discovered that the number of nucleation sites decreases significantly with the decreasing roughness of the polished substrate. Further nucleation experiments were carried out on chemical etched aluminum substrate with regular micro-patterns, the result shows that the selection of nucleation sites was more sensitive to the micro-patterns rather than the surface roughness of the interface, and the interfaces with sharp nanometer structures were feasible for the nucleation on the interface.

源语言英语
页(从-至)489-494
页数6
期刊Transactions of the Indian Institute of Metals
62
4-5
DOI
出版状态已出版 - 2009

指纹

探究 'In-situ observation of nucleation on a rough chilling surface in NH 4Cl-H2O solution' 的科研主题。它们共同构成独一无二的指纹。

引用此