Townsend Eleanor R, van Enckevort Willem J P, Meijer Jan A M, Vlieg Elias
Institute for Molecules and Materials, Radboud University Nijmegen, Nijmegen, 6500 GL, The Netherlands.
Akzo Nobel Industrial Chemicals, Salt and Crystallisation, Deventer, 7418 AJ, The Netherlands.
Cryst Growth Des. 2017 Jun 7;17(6):3107-3115. doi: 10.1021/acs.cgd.7b00023. Epub 2017 Apr 26.
This article investigates the mechanism behind the creeping of sodium chloride induced by additives. Here, an experimental approach is complemented with theoretical considerations to describe how creeping patterns of brine evolve and how the introduction of additives into the solution affects the morphology of the resultant crystals. We have found that these additives cause kinetic roughening and morphological instability mainly due to the reduction of surface free energy. There was also a marked increase in three-dimensional nucleation of the NaCl crystals and thus branching.
本文研究了添加剂诱导氯化钠蠕变背后的机制。在这里，通过实验方法与理论考量相结合，来描述盐水的蠕变模式如何演变以及向溶液中引入添加剂如何影响所得晶体的形态。我们发现，这些添加剂主要由于表面自由能的降低而导致动力学粗糙化和形态不稳定性。氯化钠晶体的三维成核以及由此产生的分支也显著增加。
