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A New Route to Prepare Hard and Anti-Scratching Coatings at Room Temperature

Published online by Cambridge University Press:  10 February 2011

Yanjing Liu
Affiliation:
NanoSonic, Blacksburg, VA 24060
Richard O. Claus
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061–0356
Aprillya Rosidian
Affiliation:
Department of Materials Science and Engineering, Virginia Tech, Blacksburg, VA 24061–0356
Tingying Zeng
Affiliation:
Department of Electrical Engineering, Virginia Tech, Blacksburg, VA 24061–0356
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Abstract

Nanocomposites of transparent, multilayer structures of different thin-films have been fabricated on single crystal silicon and quartz substrates by the new deposition technique called electrostatic self-assembly (ESA) method. The method is based on the alternating adsorption of anionic and cationic polyelectrolytes in the aqueous forms. The films were then characterized by UV/Vis spectroscopy, ellipsometry, and nano-indenter. A linear behavior of both optical absorption and film thickness as the number of bilayers increases was observed, which indicated the formation of homogeneous and uniform thin-films on both substrates. The study also observed that the films prepared by this novel method have some improved mechanical properties.

Type
Research Article
Copyright
Copyright © Materials Research Society 1999

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