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Nanocomposite Thin Film Coatings for Protection of Materials Surfaces

Published online by Cambridge University Press:  01 February 2011

R. Asmatulu ,
R.O. Claus ,
J.B. Mecham ,
S.G. Corcoran  and
Y.X. Wang
R. Asmatulu
Affiliation:
Fiber & Electro Optics Research Center, Virginia Tech, Blacksburg, VA 24061
R.O. Claus
Affiliation:
Fiber & Electro Optics Research Center, Virginia Tech, Blacksburg, VA 24061 NanoSonic Inc., 1485 South Main Street, Blacksburg, VA 24060
J.B. Mecham
Affiliation:
NanoSonic Inc., 1485 South Main Street, Blacksburg, VA 24060
S.G. Corcoran
Affiliation:
Materials Science and Engineering Department, Virginia Tech, Blacksburg, VA 24061.
Y.X. Wang
Affiliation:
Fiber & Electro Optics Research Center, Virginia Tech, Blacksburg, VA 24061
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Abstract

The present study deals with nanocomposite thin film coating, analysis and application steps for the corroding surfaces. Silica nanoparticles were incorporated into epoxy polymers, and then the obtained polymeric nanocomposites were sprayed on the Al coupons by a nozzle sprayer at different thicknesses. A urethane top layer was also coated on some of initially coated surfaces. Several electrochemical impedance spectroscopy (EIS) tests were conducted on the prepared samples using 0.5 M NaCl solution. The test results showed that the Al coupons coated by nanocomposites and urethane top coating gave the excellent corrosion resistance against the corrosion attack. As a result, it is assumed that the nanostructured coating system will allow military, private companies and government agencies to effectively protect the materials surfaces against corrosion.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 872: Symposium J – Micro- and Nanosystems—Materials and Devices , 2005 , J13.14
Copyright
Copyright © Materials Research Society 2005

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