Thin Liquid Crystal Film for Corrosion Sensing

Abstract:

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The anchoring energy of Liquid Crystals (LCs) is influenced by several parameters. Many scientists have exploited LCs anchoring in order to develop several LC based optical sensors. This paper proposes and proves a new principle of operation for corrosion sensing based on the anchoring energy of liquid crystals. For the work of this paper 5CB (4-cyano-4-n-pentylbiphenyl) nematic LCs were used to coat iron substrates forming films of about 7µm thickness. Both corroded and non-corroded iron substrates were coated and the differences in LC anchoring between the two substrates are reported. These differences were studied experimentally using the atomic force microscope (AFM) and the laser profilometer.

Info:

Periodical:

Key Engineering Materials (Volumes 385-387)

Edited by:

H.S. Lee, I.S. Yoon and M.H. Aliabadi

Pages:

477-480

DOI:

10.4028/www.scientific.net/KEM.385-387.477

Citation:

F. Kossivas and A. Kyprianou, "Thin Liquid Crystal Film for Corrosion Sensing", Key Engineering Materials, Vols. 385-387, pp. 477-480, 2008

Online since:

July 2008

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Price:

$35.00

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