Abstract
Inorganic amorphous polymetallosiloxane (PMS) coating films on aluminium substrate were produced through the polycondensation-pyrolysis reaction mechanisms of a sol-precursor solution. The precursor solution was formed by HCl-catalysed hydrolysis of a mixture ofN-[3-(triethoxysilyl)propyl]-4,5-dihydroimidazole (TSPI) and M(OC3H7) n , (M=Zr, Ti and Al,n=3 or 4). The TSPI/Zr(OC3H7)4 or Ti(OC3H7)4 precursor systems formed higher quality thin coating films, compared to the /Al(OC3H7) system. This was because of the critical formation of the polyorganosiloxane terminated by end groups containing zirconium and titanium oxides. These end groups were derived by a dechlorinating reaction between the Cl, bonded to the propyl C in organosilane, and the hydroxylated Zr or Ti compounds in the sintering stages of the film production. Good film-forming performance resulted from moderate degrees of cross-linking of metal oxides to polysiloxane chains and of the densification of metal -O-Si linkages in the pyrolysis-induced PMS network. In addition to these factors, the formation of an oxane bond at the interface between PMS and aluminium provided corrosion protection for the aluminium substrate.
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
T. Sugama, L. E. Kukacka andN. Carciello,Prog. Org. Coat. 10 (1990) 173.
H. W. Eichner andW. E. Schowalter, Forest Products Laboratory Report no. 1813, Madison, WI (1950).
N. P. Bansal,J. Amer. Ceram. Soc. 71 (1988) 666.
F. P. Eng andH. Ishida,J. Mater. Sci. 21 (1986) 1561.
C. N. R. Rao, “Chemical Applications of Infrared Spectroscopy” (Academic Press, New York, 1963) p. 323.
L. J. Bellamy, “The Infrared Spectra of Complex Molecules” (Chapman and Hall, London, 1975) p. 318.
A. Lee Smith,Spectrochim. Acta 16 (1960) 87.
D. H. R. Barton, J. E. Pgae andC. W. Shoppee,J. Chem. Soc. (1956) 331.
N. V. Sidgwick, “The Organic Chemistry of Nitrogen” (Clarendon Press, Oxford, 1966) p. 782.
R. A. Simon, A. J. Ricco andM. S. Wrighton,J. Amer. Chem. Soc. 104 (1982) 2031.
G. Ramis, P. Quintard, M. Cauchatier, G. Busca andV. Lorenzelli,ibid. 72 (1989) 1692.
S. W. Lee andR. A. Condrate Sr,J. Mater. Sci. 23 (1988) 2951.
B. E. Yoldas,ibid. 14 (1979) 1843.
B. E. Yoldas andD. P. Partlow,ibid. 23 (1988) 1895.
B. Carriere andJ. P. Deville,J. Electron Spectrosc. Relat. Phenom. 10 (1977) 85.
L. J. Matienzo,J. Adhes. Sci. Technol. 3 (1989) 357.
T. E. Madey, C. D. Wagner andA. Joshi,J. Electron Spectrosc. Relat. Phenom. 10 (1977) 359.
R. H. West andJ. E. Castle,Surf. Inter. Anal. 4 (1982) 68.
R. Caracciolo andS. H. Garofalimi,J. Amer. Ceram. Soc. 71 (1988) C-346.
H. Nasu, J. Heo andJ. D. Mackenzie,J. Non-Cryst. Solids 99 (1988) 140.
C. E. J. Nickerson, C. Ernsberger, J. Nickerson, A. E. Miller andJ. Moulder,J. Vac. Sci. Technol. 6 (1985) 2415.
Y. W. Kim andJ. G. Lee,J. Amer. Ceram. Soc. 72 (1989) 1333.
M. Murata, K. Wakino andS. Ikeda,J. Elect. Spectros. 6 (1975) 459.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Sugama, T., Taylor, C. Pyrolysis-induced polymetallosiloxane coatings for aluminium substrates. J Mater Sci 27, 1723–1734 (1992). https://doi.org/10.1007/BF01107196
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01107196