Sol-gel colored coatings

In this chapter, characteristics and applications of the sol-gel colored coating films for the coloration of glass plates using organic colorants will be described after first outlining... 

SOL-GEL COLORED COATINGS Procedure of Preparing Coating Films... 

Figure 28-6. Typical organic pigments for sol-gel colored coating.

Sakurai Y., Natsukawa K., Nakazumi H. Thermal analyses of organic pigments used in sol-gel colored coatings. J. Jpn. Soc. Colour Mater. 2000 73 380-384 Sanchez C., Ribot F. Design of hybrid organic-inorganic materials synthesized via sol-gel chemistry. New J. Chem. 1994 18 1007-1047... 

Sol-gel technology makes it possible to deposit onto glass substrates two-component coatings that consist of a mixture of silicon dioxide and an indicator (a dye that changes color as a function of the pH)48. The spectral and operational characteristics of the resulting coatings are similar to one-component coatings. 

FIGURE 16.1 Optical micrograph of typical striation defects, in this case found in a Pb(ZrTi)Oj sol-gel coating on silicon. Color variations result from coating thickness differences. The radial outflow direction is aligned with the ridge features (nearly left to right in this picture). 

Ishizuka N., Nakanishi K., Hirao K. Preparaion and chromatographic application of macroporous silicate in a capillary. J. Sol-Gel Sci. Technol. 2000 19 371-375 Ismail M.G.M.U., Nakai Z., Somiya S. Microstructure and mechanical properties ofmullite prepared by the sol-gel method. I. Am. Ceram. Soc. 1987 70 C7-C8 Ito T. Selectively absorbing filter films for color Braun tube. Indust. Mater. 1998 46 52-56 Ito T., Sol-Gel products news sol-gel coating for contrast enhancement of color cathode-ray tubes. J. Sol-Gel Sci. Technol. 2000 18 287... 

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