Activating the microscale edge effect in a hierarchical surface for frosting suppression and defrosting promotion

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

122 Scopus Citations
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Author(s)

  • Xuemei Chen
  • Ruiyuan Ma
  • Hongbo Zhou
  • Xiaofeng Zhou
  • Lufeng Che
  • Shuhuai Yao

Detail(s)

Original languageEnglish
Article number2515
Journal / PublicationScientific Reports
Volume3
Early online date28 Aug 2013
Publication statusPublished - 2013

Link(s)

Abstract

Despite extensive progress, current icephobic materials are limited by the breakdown of their icephobicity in the condensation frosting environment. In particular, the frost formation over the entire surface is inevitable as a result of undesired inter-droplet freezing wave propagation initiated by the sample edges. Moreover, the frost formation directly results in an increased frost adhesion, posing severe challenges for the subsequent defrosting process. Here, we report a hierarchical surface which allows for interdroplet freezing wave propagation suppression and efficient frost removal. The enhanced performances are mainly owing to the activation of the microscale edge effect in the hierarchical surface, which increases the energy barrier for ice bridging as well as engendering the liquid lubrication during the defrosting process. We believe the concept of harnessing the surface morphology to achieve superior performances in two opposite phase transition processes might shed new light on the development of novel materials for various applications. © 2013 Macmillan Publishers Limited. All rights reserved.

Research Area(s)

Citation Format(s)

Activating the microscale edge effect in a hierarchical surface for frosting suppression and defrosting promotion. / Chen, Xuemei; Ma, Ruiyuan; Zhou, Hongbo; Zhou, Xiaofeng; Che, Lufeng; Yao, Shuhuai; Wang, Zuankai.

In: Scientific Reports, Vol. 3, 2515, 2013.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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