Dynamic contact angle and three-phase contact line of water drop on copper surface

E. G. Orlova, D. V. Feoktistov, K. A. Batishcheva

Research output: Contribution to journalConference articlepeer-review

5 Citations (Scopus)

Abstract

Nowadays there is a lack of experimental data describing the physical process of drop spreading on a solid metal surface for developing wetting and spreading theory. The experimental data obtained by using the high speed video-recording will allow to identify unknown previously spreading modes as well as the change of the dynamic contact angle and the three-phase contact line. The purpose of the work is to determine the effect of the drop growth rate and the copper substrate surface roughness on the dynamic contact angle and the three-phase contact line speed at distilled water drop spreading. Shadow and Schlieren methods are used to obtain experimental data. Three drop spreading modes on the rough surfaces were identified. Time dependences of the dynamic contact angle and contact line speed were obtained. Experimental results can be used for assessing the validity of the developed mathematical models of wetting and spreading processes in the field of micro- and nanoelectronics, ink jet printing, thin-film coatings, spray cooling, and optoelectronics.

Original languageEnglish
Article number012010
JournalIOP Conference Series: Materials Science and Engineering
Volume93
Issue number1
DOIs
Publication statusPublished - 13 Oct 2015
Event21st International Conference for Students and Young Scientists: Modern Technique and Technologies, MTT 2015 - Tomsk, Russian Federation
Duration: 5 Oct 20159 Oct 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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