Heterogeneous Sol-Gel Systems – Derived Ceramics

Abstract:

Heterogeneous sol-gel systems (suspensions), synthesized by mixing sols and fillers of various dispersity (oxides, minerals, etc.), are successfully used to prepare glass-ceramic coatings. Sol composition (precursor, catalyst, solvent, dopants), filler dispersity and a homogenization mode for obtained suspensions essentially influence the properties of coatings formed. Here ways of the control of properties of heterogeneous sol-gel systems (by using various dopants, additives of organic low- and high-molecular compounds, as well as ultrasound) to reach set electro-physical and mechanical characteristics of coatings are considered in details. A number of examples of applications of glass-ceramic and hybrid coatings as well as ‘skin’ - layers are resulted.

• Periodical: Advances in Science and Technology (Volume 63)
• Pages: 131-140
• DOI: https://doi.org/10.4028/www.scientific.net/AST.63.131
• Online since: October 2010
• Authors: Olga A. Shilova
• Keywords: Glas Ceramics, Glassy Matrix, High Disperse Filler, Insulation Coating, Skin Layer, Sol-Gel (SG)

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