Automatic morphology control of liquid metal using a combined electrochemical and feedback control approach

Ming Li, Hisham Mohamed Cassim Mohamed Anver, Yuxin Zhang, Shi-Yang Tang, Weihua Li

Research output: Contribution to journalArticle

3 Citations (Scopus)
28 Downloads (Pure)

Abstract

Gallium-based liquid metal alloys have been attracting attention from both industry and academia as soft, deformable, reconfigurable and multifunctional materials in microfluidic, electronic and electromagnetic devices. Although various technologies have been explored to control the morphology of liquid metals, there is still a lack of methods that can achieve precise morphological control over a free-standing liquid metal droplet without the use of mechanical confinement. Electrochemical manipulation can be relatively easy to apply to liquid metals, but there is a need for techniques that can enable automatic and precise control. Here, we investigate the use of an electrochemical technique combined with a feedback control system to automatically and precisely control the morphology of a free-standing liquid metal droplet in a sodium hydroxide solution. We establish a proof-of-concept platform controlled by a microcontroller to demonstrate the reconfiguration of a liquid metal droplet to desired patterns. We expect that this method will be further developed to realize future reconfigurable liquid metal-enabled soft robots.
Original languageEnglish
Article number209
Pages (from-to)1-7
Number of pages7
JournalMicromachines
Volume10
Issue number3
DOIs
Publication statusPublished - Mar 2019

Bibliographical note

Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • liquid metal
  • morphology control
  • electrochemistry
  • feedback control system

Fingerprint Dive into the research topics of 'Automatic morphology control of liquid metal using a combined electrochemical and feedback control approach'. Together they form a unique fingerprint.

Cite this