Cover Page December-2019-Advanced Materials Letters

Advanced Materials Letters

Volume 10, Issue 12, Pages 899-902, December 2019
About Cover

IAAM recognizes the contribution of scientists towards the advancement of materials to global excellence with the ‘Researcher of the year’ award every year. Prof. Zhong Lin (Z. L.) Wang from Georgia Tech., USA and Prof. T. Venkatesan from Nano Core Research Center at National University of Singapore were recognized with this prestigious award in 2017 and 2018, respectively. This year, the award is presented to eminent physicist Prof. Enge Wang, Vice President of Chinese Academy of Sciences (CAS) and President Emeritus of Peking University, China, for his contribution towards the nanotechnology research and innovations. Advanced Materials Letters feels very honored and privileged to confer upon him the ‘Researcher of the Year’ award and dedicate the cover photo of December 2019 issue for his several years of diligence and uncountable achievements.


Alignment of Rods and Flakes using Electric Field 

Rongshan Qin*1

1School of Engineering and Innovation, The Open University, Walton Hall, Milton Keynes WA76AA, UK

Adv. Mater. Lett., 2019, 10 (12), pp 899-902

DOI: 10.5185/amlett.2019.0020

Publication Date (Web): May 20, 2019

E-mail: rongshan.qin@open.ac.uk

Abstract

Electrically neutral anisotropic objects can be aligned by the applied electric field. The required processing conditions include to submerge the objects in a matrix with higher electrical conductivity than that of the objects and to apply electric field to the suspension. The objects may be in rod, disk, flakes or other anisotropic shapes. Carbon nanotubes, silicon nanowires, micro coils, DNA and many bacteria can be approximated as rod-like shape, and graphene can be considered as a shape of flake. A fundamental investigation to this phenomenon has been carried out in the present work. Numerical calculation based on thermodynamics shows a confirmative trend to use electric field to align those materials. The driving force in the alignment processing is an equivalent configuration force dependent on the discrepancy between the electrical properties of the anisotropic particles and matrix. © VBRI Press.

Keywords

Anisotropic particles, alignment, electropulse

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