Asymmetric coalescence of reactively wetting droplets

Zheng, C. X., Tang, Wen-Xin and Jesson, David E. ORCID: https://orcid.org/0000-0003-0897-1445 2012. Asymmetric coalescence of reactively wetting droplets. Applied Physics Letters 100 (7) , 071903. 10.1063/1.3684616

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Abstract

Coalescence of droplets during reactive wetting is investigated for the liquid Ga/GaAs(001) system. In situmirror electron microscopy reveals that coalescence predominantly involves the motion of one reactive droplet relative to the other. This behaviour differs significantly from coalescence in non-reactive systems and is associated with contact line pinning at a ridge/etch pit edge which is identified using atomic force microscopy and selective etching. A simple geometrical model is presented to describe the pinning.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QC Physics
Additional Information:	Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/0003-6951/ (accessed 20/02/2014).
Publisher:	American Institute of Physics
ISSN:	0003-6951
Date of First Compliant Deposit:	30 March 2016
Last Modified:	28 May 2023 16:42
URI:	https://orca.cardiff.ac.uk/id/eprint/52394

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