Sol-gel-coating technologies

Chong, S.L., Wang, D., Hayes, J.D., Wilhite, B.W., Malik, A. Sol-gel coating technology for the preparation of solid-phase microextraction fibers of enhanced thermal stability. Anal. Chem. 69, 3889-3898 (1997)... 

With careful selection of the combination of starting alkoxides and appropriate synthesis conditions, silica-based sol-gel technology is now widely applied to the conservation of art objects and cultural heritage. For example, a hybrid sol-gel coating protects the fourteenth-century... 

Hybrid sol-gel technology provides control of the coating composition and structure at relatively low cost and high process flexibility [6]. Here, the treatment of the surface of the AA2024-T3 aluminium alloy by application of a hybrid sol-gel coating containing cerium oxide nanoparticles has been examined. 

H.G. Floch, J.J. Priotton I.M. Thomas, "Porous Silica Sol-Gel Coatings For Nd Glass High-Pbwer Pulsed Laser Uses", The Hiysics Technology of Amorphous Si02, edited by R. Devine, Plenum Press, 1988. 

This new series of books on sol-gel topics, with volumes on aerogels, sol-gel characterisation, hybrids, nanocomposites, sol-gel coatings for energy applications, and membranes currently in development, will be edited and written by top scientists in the field, and fits perfectly with the education and dissemination mission of the ISGS. The books will provide both novices and experts with new ideas and concepts on various aspects of sol-gel science and technology. They will also provide the sol-gel community with a solid foundation for exploring new, unchartered scientific territories in the 21st century. 

A. Galio, S. Lamaka, M. Zheludkevich, L. Dick, I. Muller, and M. Ferreira, Inhibitor-doped sol-gel coatings for corrosion protection of magnesium alloy AZ31, Surface and Coatings Technology, vol. 204, no. 9, pp. 1479-1486, 2010. 

The objectives of this chapter are two-fold first, to review concepts and potential applications of sol/gel derived materials forbioanalytical chemistry, and second, to describe the processing, microstructure and performance of hybrid sol/gel coatings developed specifically for apphcation in DNA microarray technology. 

Tomsic, B., Simoncic, B., Orel, B., Ceme, L., Forte-Taveer, P., Zorko, M., Jerman, I., Vilenik, A. Kovac, J. (2008a). Sol-gel coating of cellulose fibres with antimicrobial and repellent properties. Journal of Sol Gel Science and Technology, 47, 44-57. 

Sol—Gel Sintered Aluminum Oxide. A new and much more versatile sintered alumina abrasive is now produced from aluminum monohydrate, with or without small additions of modifiers such as magnesia, by the sol—gel process (see Sol-gel technology). The first modified sol—gel abrasive on the market, Cubitron, was patented (27) and produced by the 3M Corporation for products such as coated belts and disks. The success of this material promoted intensive research into sol—gel abrasives. 

Solution Deposition of Thin Films. Chemical methods of preparation may also be used for the fabrication of ceramic thin films (qv). MetaHo-organic precursors, notably metal alkoxides (see Alkoxides, metal) and metal carboxylates, are most frequently used for film preparation by sol-gel or metallo-organic decomposition (MOD) solution deposition processes (see Sol-GEL technology). These methods involve dissolution of the precursors in a mutual solvent control of solution characteristics such as viscosity and concentration, film deposition by spin-casting or dip-coating, and heat treatment to remove volatile organic species and induce crystaHhation of the as-deposited amorphous film into the desired stmcture. 

The need to identify replacements for chromate-based technologies has also resulted in the development of alternatives to resin-based corrosion-inhibiting primers. These are primarily inorganic barrier coating techniques, such as sol-gel processes, which may or may not include corrosion inhibitors. These are discussed in a later section. 

---