Processing and Properties of GPTMS-TEOS Hybrid Coatings on 5083 Aluminium Alloy

Abstract:

The hybrid nanocomposite coatings were processed in solution using acid-catalyzed hydrolysis and condensation of precursors 3-Glycidoxypropyl trimethoxysilane (GPTMS) and Tetraethoxysilane (TEOS) forming self assembled nanoscale composite. Coating were applied by dipping 5083 aluminium alloy in sol-gel solutions at several stages and different aging times. Effect of GPTMS-TEOS sol's aging time on thickness, adhesion, and corrosion behaviour of hybrid organic-inorganic GPTMS-TEOS sol-gel coatings have been investigated. The results indicated that thickness of hybrid coatings increased but adhesion decreased with increasing aging time. Adhesion test and electrochemical polarization behaviour reveal that if the coating process was chosen correctly, the coating had a good adhesion strength and corrosion resistance.

• Periodical: Advanced Materials Research (Volumes 239-242)
• Pages: 736-742
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.239-242.736
• Online since: May 2011
• Authors: Hamed Rahimi, Reza Mozafarinia, Reza Shoja Razavi, Ebrahim Paimozd, Akbar Hojjati-Najafabadi
• Keywords: Aging, Corrosion, Hybrid Coating, Sol-Gel (SG)

References

[1] Elwin L. Rooy, "Properties and Selection: Nonferrous Alloys and special-purpose Materials", Ed. Steven R. Lampman, Theodore B. Zorc, ASM Handbook vol. 2 (1993), p.84&106.

[2] Z. Feng, Y. Liu, G. E. Thompson and P. Skeldon, "Crack-free sol-gel coatings for protection of AA1050 aluminium alloy" , Journal of surface and interface analysis , 310 (2010), pp.306-310.

DOI: 10.1002/sia.3162

[3] H. Wang, R. Akid, "A room temperature cured sol-gel anticorrosion pre-treatment for Al 2024- T3 alloys ", Journal of corrosion science, 49 (2007), pp.4491-4503.

DOI: 10.1016/j.corsci.2007.04.015

[4] M. Kallio, J. Mannila, A. Vesa, R. Mahlberg, T. Ohligschläger, "Modification of surface properties of metals by sol-gel coatings", SSPC/PDCA Joint Conference, Las Vegas, 23-26 Jan,( 2005).

[5] D. Wang, G.P. Bierwagen, "Sol-gel coatings on metals for corrosion protection", Journal of Progress in Organic Coatings, 64 (2009), pp.331-337.

DOI: 10.1016/j.porgcoat.2008.08.010

[6] Y.J. Du, M. Damron, G. Tang, H. Zheng, C.J. Chr, J.H. Osborne, " Inorganic/organic hybrid coatings for aircraft aluminum alloy substrates" , Journal of Progress in Organic Coatings, 41, 226 (2001), pp.226-232.

DOI: 10.1016/s0300-9440(01)00133-3

[7] (a) L.S. Kasten, J.T. Grant, N. Grebasch, N. Voevodin, F.E. Arnold, M.S. Donley, "An XPS study of cerium dopants in sol–gel coatings for aluminum 2024-T3", Surf. Coat. Technol. 140 (2001), p.11; (b) N.N. Voevodin, N.T. Grebasch, W.S. Soto, F.E. Arnold, M.S. Donley, "Potentiodynamic evaluation of sol–gel coatings with inorganic inhibitors", Surf. Coat. Technol. 140 (2001), p.24.

DOI: 10.1016/s0257-8972(01)01004-0

[8] (a) W.J. van Ooij, J. Song, V. Subramanian, "Silane-based pretreatments of aluminum and its alloys as chromate alternatives", ATB Metall. 37 (1997), p.137; (b) W.J. van Ooij, T. Child, "Protecting metals with silane coupling agents", Chemtech 28 (1998), p.26; (c) W.J. van Ooij, D.Q. Zhu, G. Prasad, S. Jayaseelan, Y. Fu, Teredesai, Surface Engineering 16 (2000), p.386.

DOI: 10.1179/026708400101517369

[9] W.J. van Ooij," Corrosion protection of aluminum alloys by conversion systems and organic coatings", ATB Metall. 38 (1998), p.63.

[10] G.P. Sundararajan, W.J. van Ooij, "Silane-based pretreatments for automotive steels", Surface Engineering 16 (2000), p.315.

DOI: 10.1179/026708400101517305

[11] V. Subramanian, W.J. van Ooij, "Effect of the amine functional group on corrosion rate of iron coated with films of organofunctional silanes", Corrosion 54 (1998), p.204.

DOI: 10.5006/1.3284845

[12] (a) T.L. Metroke, O. Kachurina, E.T. Knobbe, "Spectroscopic and corrosion resistance characterization of GLYMO-TEOS Ormosil coatings for aluminum alloy corrosion inhibition", Progress in Organic Coatings 44 (2002), p.295; (b) T.L. Metroke, O. Kachurina, E.T. Knobbe, "Spectroscopic and corrosion resistance characterization of amine and super acid-cured hybrid organic–inorganic thin films on 2024-T3 aluminum alloy", Progress in Organic Coatings 44 (2002), p.185.

DOI: 10.1016/s0300-9440(02)00007-3

[13] T.L. Metroke, R.L. Parkhill, E.T. Knobbe, "Synthesis of hybrid organic–inorganic sol–gel coatings for corrosion resistance", Mater. Res. Soc. Symp. Proc. 576 (1999), p.293.

DOI: 10.1557/proc-576-293

[14] (a) O. Kachurina, T.L. Metroke, E. Stesikova, E.T. Knobbe, "Comparison of single and multilayer coatings based on Ormosil and conversion layers for aluminum alloy corrosion inhibition", J. Coat. Technol. 74 (2002), p.43; (b) T.L. Metroke, O. Kachurina, E.T. Knobbe, "Electrochemical and salt spray analysis of multilayer Ormosil/conversion coating systems for the corrosion resistance of 2024-T3 aluminum alloys", J. Coat. Technol. 74 (2002), p.53.

DOI: 10.1007/bf02720165

[15] K.H. Wu, M.C. Li, C.C. Yang, G.P. Wang, "Domain size and thermal stability of amine-cured hybrid films as corrosion resistance treatments for aluminum alloy", Journal of Non-Crystalline Solids 352 (2006), p.2897–2904.

DOI: 10.1016/j.jnoncrysol.2006.01.100

[16] K.H. Wu, T.C. Chang, C.C. Yang, G.P. Wang, " Dynamics and corrosion resistance of amine-cured organically modified silicate coatings on aluminum alloys", Journal of Thin Solid Films, 513 ( 2006), pp.84-89.

DOI: 10.1016/j.tsf.2006.01.022

[17] Standard Test Methods for Measuring Adhesion by Tape Test, ASTM standard, D3359-02, (2006).

[18] John comyn, adhesion science, The Royal Society of Chemistry, 1-120, (1997).

[19] Sina Ebnesajjad, Adhesives Technology Handbook, Second Edition, Copyright © by William Andrew Inc (2008), pp.1-62 and 183-206.

[20] T. Kurisu, H. Kozuka, J.Am, "Effects of heating rate on stress evolution in alkoxide-derived silica gel-coating films", Journal of Ceramic Society, 89 (2006), p.2453.

DOI: 10.1111/j.1551-2916.2006.01107.x

[21] - H. Kozuka, S. Takenaka, H. Tokita, T. Hirano, Y. Higashi, T. Hamatani, " Stress and cracks in gel-derived ceramic coatings and thick film formation", Journal of Sol-Gel Science and Technology ,26 (2003), p.681.

DOI: 10.1023/a:1020773415962