Electric-field-induced alignment of electrically neutral disk-like particles: modelling and calculation

Qin, Rongshan (2017). Electric-field-induced alignment of electrically neutral disk-like particles: modelling and calculation. Scientific reports, 7, article no. 8449.

DOI: https://doi.org/10.1038/s41598-017-09180-7

Abstract

This work reveals a torque from electric field to electrically neutral flakes that are suspended in a higher electrical conductive matrix. The torque tends to rotate the particles toward an orientation with its long axis parallel to the electric current flow. The alignment enables the anisotropic properties of tiny particles to integrate together and generate desirable macroscale anisotropic properties. The torque was obtained from thermodynamic calculation of electric current free energy at various microstructure configurations. It is significant even when the electrical potential gradient becomes as low as 100 v/m. The changes of electrical, electroplastic and thermal properties during particles alignment were discussed.

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• Item ORO ID
• 50550
• Item Type
• Journal Item
• ISSN
• 2045-2322
• Project Funding Details

• Funded Project Name	Project ID	Funding Body
  UKCOMES	EP/L00030X/1	EPSRC
  Newton Advanced Fellowship : Study of the electropulse-based superclean steel green processing method	NA150320	The Royal Society

• Academic Unit or School
• Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
  Faculty of Science, Technology, Engineering and Mathematics (STEM)
• Copyright Holders
• © 2016 The Author
• Depositing User
• Rongshan Qin