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Asymmetric coalescence of reactively wetting droplets

Zheng, C. X., Tang, Wen-Xin and Jesson, David E. 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: 04 Jun 2017 05:36
URI: http://orca.cf.ac.uk/id/eprint/52394

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