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A hybrid organic–inorganic sol–gel coating for protecting aluminium alloy 7075-T6 against corrosion in Harrison’s solution

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Abstract

A two-step procedure for synthesizing a new type of hybrid coating is presented. Coatings were synthesized from tetraethyl orthosilicate, 3-(trimethoxysilyl)propyl methacrylate and zirconium(IV) propoxide (ZTP). Zirconium(IV) propoxide was chelated with methacrylic acid. The synthesis, which proceeded at room temperature, was optimized using in situ Fourier transform infrared spectroscopy (FTIR). The effects of ZTP content, ageing and Zr/Si ratio were investigated. The viscosity of the sols increased with the ratio of Zr to Si. The terminal stability of the hybrid coatings was determined by thermogravimetric analysis and their composition and morphology analyzed by FTIR and scanning electron microscopy combined with energy dispersive X-ray spectroscopy. Sols were deposited on the aluminium AA7075-T6 substrate by spin-coating. The corrosion properties in dilute Harrison’s solution of samples coated by hybrid coatings were determined by electrochemical polarization methods. The coatings substantially improved the corrosion resistance of the substrate, as shown by a broad range of passivity extending up to high electrode potentials. The degree of protection was dependent on the content of zirconium and the time of ageing. The strong corrosion protection was ascribed to the bonding between silicon, oxygen and zirconium (Si–O–Si, Si–O–Zr), as proved by the FTIR analysis.

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References

  1. Davis JR (1999) Corrosion of aluminum and aluminum alloys. ASM International, USA

    Google Scholar 

  2. Chou T, Chandrasekaran C, Cao G (2003) J Sol-Gel Sci Technol 26:321–327

    Article  Google Scholar 

  3. Kendig MW, Buchheit RG (2003) Corrosion 59:379–400

    Article  Google Scholar 

  4. Dimitriev Y, Ivanova Y, Iordanova R (2008) J Univ Chem Technol Metall 43:181–192

    Google Scholar 

  5. Twite RL, Bierwagen GP (1998) Prog Org Coat 33:91–100

    Article  Google Scholar 

  6. Bierwagen G, Brown R, Battocchi D, Hayes S (2010) Prog Org Coat 68:48–61

    Article  Google Scholar 

  7. Restriction of Hazardous Substance Directive (ROHS) 2002/95/EC, www.rohs.eu

  8. Zheng SX, Li JH (2010) J Sol-Gel Sci Technol 54:174–187

    Article  Google Scholar 

  9. Wen J, Wilkes GL (1996) Chem Mater 8:1667–1681

    Article  Google Scholar 

  10. Han Y-H, Taylor A, Mante MD, Knowles KM (2007) J Non-Cryst Solids 353:313–320

    Article  Google Scholar 

  11. Guglielmi M (1997) J Sol-Gel Sci Technol 8:443–449

    Google Scholar 

  12. Metroke TL, Parkhill LR, Knobbe TE (2001) Prog Org Coat 41:233–238

    Article  Google Scholar 

  13. Zheludkevich ML, Salvado IM, Ferreira MGS (2005) J Mater Chem 15:5099–5111

    Article  Google Scholar 

  14. Oubaha M, Etienne P, Calas S, Sempere R, Nedelec JM, Moreau Y (2005) J Non-Cryst Solids 351:2122–2128

    Article  Google Scholar 

  15. Pirhady Tavandashti N, Sanjabi S, Shahrabi T (2009) Prog Org Coat 65:182–186

    Article  Google Scholar 

  16. Du Joshua Y, Damron M, Tang G, Zheng H, Chu C-J, Osborne JH (2001) Prog Org Coat 41:226–232

    Article  Google Scholar 

  17. Voevodin NN, Grebasch NT, Soto WS, Kasten LS, Grant JT, Arnold FE, Donley MS (2001) Prog Org Coat 41:287–293

    Article  Google Scholar 

  18. Rajath Varma PC, Colreavy J, Cassidy J, Oubaha M, McDonagh C, Duffy B (2010) Thin Solid Films 518:5753–5761

    Article  Google Scholar 

  19. Andreatta F, Paussa L, Lanzutti A, Rosero Navaro NC, Aparicio M, Castro Y, Duran A, Ondratschek D, Fedrizzi L (2011) Prog Org Coat 72:3–14

    Article  Google Scholar 

  20. Zheludkevich ML, Serra R, Montemor MF, Miranda Salvado IM, Ferreira MGS (2006) Surf Coat Technol 200:3084–3094

    Article  Google Scholar 

  21. Girardi F, Graziola F, Aldighieri P, Fedrizzi L, Gross S, Di Maggio R (2008) Prog Org Coat 62:376–381

    Article  Google Scholar 

  22. Hosseini SMA, Jafari AH, Jamalizedah E (2009) Electrochim Acta 54:7207–7213

    Article  Google Scholar 

  23. Voevodin NN, Grebasch NT, Soto WS, Arnold FE, Donley MS (2001) Surf Coat Technol 140:24–28

    Article  Google Scholar 

  24. Zheludkevich ML, Serra R, Montemor MF, Yasakau KA, Miranda Salvado IM, Ferreira MGS (2005) Electrochim Acta 51:208–217

    Article  Google Scholar 

  25. Schem M, Schmidt T, Gerwann J, Mittmar M, Veith M, Thompson GE, Molchan IS, Hashimoto T, Skeldon P, Phani AR, Santucci S, Zheludkevich ML (2009) Corrosion Sci 51:2304–2315

    Article  Google Scholar 

  26. Montemor MF, Trabelsi W, Lamaka SV, Yasakau KA, Zheludkevich ML, Bastos AC, Ferreira MGS (2008) Electrochim Acta 53:5913–5922

    Article  Google Scholar 

  27. Gonzales E, Pavez J, Azocar I, Zagal JH, Zhou X, Melo F, Thompson GE, Páez MA (2011) Electrochim Acta 56:7586–7595

    Article  Google Scholar 

  28. Nass R, Schmidt H, Arpac E (1990) SPIE 1328:258–263

    Article  Google Scholar 

  29. Datchary W, Mehner A, Zong HW, Lucca DA, Klopfstein MJ, Ghisleni R, Grimme D, Brinksmeier E (2005) J Sol-Gel Sci Technol 35:245–251

    Article  Google Scholar 

  30. Del Monte F, Cheben P, Grover CP, Mackenzie JD (1999) J Sol-Gel Sci Technol 15:73–85

    Article  Google Scholar 

  31. Oubaha M, Smaili M, Etinne P, Coudray P, Moreau Y (2003) J Non-Cryst Sol 318:305–313

    Article  Google Scholar 

  32. Twite R, Balbyshev S, Bierwagen G (1997) In: Taylor SR, Isaacs HG, Drooman EW (eds) Proceedings of symposium on environmentally acceptable inhibitors and coatings, special publication of the electrochemical society, vol 95–16, p 202

  33. Brinker CJ, Scherer GW (1990) Sol-gel science. The physics and chemistry of sol-gel processing. Academic Press, San Diego, p 358

    Google Scholar 

  34. Pellice SA, Williams RJJ, Sobrados I, Sanz J, Castro Y, Aparicio M, Duran A (2006) J Mater Chem 16:3318–3325

    Article  Google Scholar 

  35. Chmel A, Mazurina EK, Shashkin VS (1990) J Non-Cryst Solids 122:285–290

    Article  Google Scholar 

  36. Chan C-K, Peng S-L, Chu I-M, Ni S-C (2001) Polymer 42:4189–4196

    Article  Google Scholar 

  37. Graziola F, Girardi F, Bauer M, di Maggio R, Rovezzi M, Bertagnolli H, Sada C, Rossetto G, Gross S (2008) Polymer 49:4332–4343

    Article  Google Scholar 

  38. Khaled SM, Sui R, Charpentier PA, Rizkalla AS (2007) Langmuir 23:3988–3995

    Article  Google Scholar 

  39. Rajath Varma PC, Colreavy J, Cassidy J, Oubaha M, Duffy B, McDonagh C (2009) Prog Org Coat 66:406–411

    Article  Google Scholar 

  40. Sorek Y, Zevin M, Reisfeld R, Hurvist T, Ruschin S (1997) Chem Mater 9:670–676

    Article  Google Scholar 

Download references

Acknowledgments

The authors thank Barbara Kapun, BSc, for valuable technical help and Prof. Barbara Malič for fruitful discussions regarding the FTIR analysis of solid samples and viscosity measurements. The financial support by the Slovenian Research Agency is acknowledged.

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Authors and Affiliations

  1. Department of Physical and Organic Chemistry, Jožef Stefan Institute, Jamova c. 39, 1000, Ljubljana, Slovenia

    Peter Rodič, Jernej Iskra & Ingrid Milošev

  2. Centre of Excellence for Integrated Approaches in Chemistry and Biology of Proteins, CIPKeBiP, Jamova c. 39, 1000, Ljubljana, Slovenia

    Jernej Iskra

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  1. Peter Rodič
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  2. Jernej Iskra
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  3. Ingrid Milošev
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Correspondence to Ingrid Milošev.

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Rodič, P., Iskra, J. & Milošev, I. A hybrid organic–inorganic sol–gel coating for protecting aluminium alloy 7075-T6 against corrosion in Harrison’s solution. J Sol-Gel Sci Technol 70, 90–103 (2014). https://doi.org/10.1007/s10971-014-3278-8

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  • DOI: https://doi.org/10.1007/s10971-014-3278-8

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