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Particle-Doped Organic-Inorganic Hybrid Coatings as Corrosion Inhibiting Surface Treatments for Aluminum Alloys

Published online by Cambridge University Press:  01 February 2011

Tammy L. Metroke ,
Olga Kachurina  and
Edward T. Knobbe
Tammy L. Metroke
Affiliation:
Oklahoma State University, Environmental Institute, 003 Life Sciences East, Stillwater, OK 74075
Olga Kachurina
Affiliation:
Oklahoma State University, Environmental Institute, 003 Life Sciences East, Stillwater, OK 74075
Edward T. Knobbe
Affiliation:
Oklahoma State University, Environmental Institute, 003 Life Sciences East, Stillwater, OK 74075
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Abstract

Organically-modified silicate (Ormosil) films have been found to provide good corrosion resistance for metal substrates and are potential replacement systems for hexavalent chromiumbased conversion coatings. Significant enhancement in corrosion resistance properties were observed upon addition of sub-micron to micron-sized particles (TiO2, Al2O3, SiN, TiN) to the Ormosil coating as determined using accelerated salt spray and electrochemical analysis. Rcorr values derived from potentiodynamic polarization curves were found to increase from 1520 to (3800 - 4680) kΩcm2 upon addition of various concentrations of TiO2, Al2O3, SiN or TiN particles to the Ormosil thin film. Similarly, Epit values were found to range from +0.2 V for the non-doped Ormosil to (0.6 – 1.9) V for particle-doped Ormosil thin films.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 726: Symposium Q – Hybrid Organic-Inorganic Materials , 2002 , Q12.3
Copyright
Copyright © Materials Research Society 2002

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References

1 Blue Ribbon Advisory Panel Blue Ribbon Advisory Report, Wright Laboratory, Wright Patterson Airforce Base, Dayton, OH, 1995.Google Scholar
2(a) Nylund, A. Aluminum Transactions, 2, 121 (2000); (b) C.J.E. Smith, K.R. Baldwin, S.A. Garrett, M.C. Gibson, M.A.H. Hewins and P.L. Lane, ATB Metallurgie, 37, 266 (1997); (c) J. Puippe, Galvanotechnik., 90, 3003 (1990).Google Scholar
3 Schmidt, H.K. Mater. Res. Soc. Symp. Proc., 180, 961 (1990).Google Scholar
4 Kasemann, R. and Schmidt, H. New J. Chem., 18, 1117 (1994).Google Scholar
5 Guglielmi, M. J. Sol-Gel Sci. Tech., 8, 443 (1997).Google Scholar
6 Metroke, T.L. Parkhill, R.L. and Knobbe, E.T. Prog. Org. Coat., 41, 233 (2001).Google Scholar
7 Twite, R.L. and Bierwagen, G.P. Prog. Org. Coat., 33, 91 (1998).Google Scholar
8(a) Kato, K. J. Mater. Sci., 28, 1445 (1992); (b) K. Kato, J. Mater. Sci., 28, 4033 (1993).Google Scholar
9(a) Ooij, W.J. van, Zhang, C. Zhang, J.W. and Yuan, W. Electrochem. Soc. Proc., 97-41, 222 (1998); (b) W.J. van Ooij, J. Song and V. Subramanian ATB Metallurgie, 37, 137 (1997); (c) T.F. Child, W.J. van Ooij, Trans. IMF., 77, 64 (1999); (d) V. Subramanian and W.J. van Ooij, Surface Engineering, 15, 168 (1999); (e) W.J. van Ooij and T. Child, ChemTech, 28, 26 (1998).Google Scholar
10 Donley, M.S. and Vreugdenhil, A.J. J. Coat. Technol., 73, 915 (2001).Google Scholar
11(a) Voevodin, N.N. Grebasch, N.T. Soto, W.S. Kasten, L.S. Grant, J.T. Arnold, F.E. and Donley, M.S., Prog. Org. Coat., 41, 287 (2001); (b) N.N. Voevodin, N.T. Grebasch, W.S. Soto, F.E. Arnold and M.S. Donley, Surface and Coatings Technol., 140, 24 (2001).Google Scholar
12 Du, Y.J. Damron, M. Tang, G. Zheng, H. Chu, C.-J., and Osborne, J.H. Prog. Org. Coat., 41, 226 (2001).Google Scholar
13 Yang, X.F. Tallman, D.E. Gelling, V.J. Bierwagen, G.P. Kasten, L.S. and Berg, J. Surface and Coatings Technol., 140, 44 (2001).Google Scholar
14(a) Metroke, T.L. Parkhill, R.L. and Knobbe, E.T. E.T., Mater. Res. Soc. Symp. Proc., 576, 293 (1999); (b) T.L. Metroke and E.T. Knobbe, Mater. Res. Soc. Symp. Proc., 628, CC11.4.1 (2000).Google Scholar
15 Schmidt, H. Jonschker, G. Goedicke, S. and Mennig, M. J. Sol-Gel Sci. Technol. 19, 39 (2000).Google Scholar
16 Ilevbare, G.O., Scully, J.R., Yuan, J. and Kelly, R.G., Corrosion, 56, 227 (2000).Google Scholar