Abstract
Vanadium pentoxide (V2O5) sols have been used in conductive coatings and related applications [1, 2, 3]; however, the changes which may occur in the properties of these coatings with sols of different ages have not been carefully shown. Properties which may be dependent on the age of the sol (sol viscosity, film morphology and conductance) were measured in this work. The coating sols were prepared by ion-exchange of sodium metavanadate solutions.
It was found that the coating thickness, sol viscosity, and surface morphology of the coatings were directly related to the age of the sol used. The dried coating thickness increased from 3 microns to 20 microns over a 30 day period. The sol viscosity increased from 1 centipoise to near 2 centipoise. The surface morphology of the coatings changed from that of a featureless surface at day 1 to a continual coverage of micron-sized fibers as the coating sols aged. The conductivity of the coatings, though, was unaffected by the age of the sol. The coating properties were correlated to the amount of polymerization of dissolved precursors in solution.
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References
Livage, J., Chem. Mat., 3, 578 (1991).
Livage, J., Better Ceramics through Chemistry, edited by C.J. Brinker, D. Clark, and D. Ulrich (Mater. Res. Soc. Proc. 32, Pittsburgh, PA, 1984), 125.
Livage, J., Barboux, P., Badot, J., and Baffier, N., Better Ceramics through Chemistry III, edited by C. Brinker, D. Clark, and D. Ulrich (Mater. Res. Soc. Proc. 121, Pittsburgh, PA, 1988), 167.
Bailey, J.K., Nagase, T., Pozarnsky, G.A., and Mecartney, M.L., Better Ceramics through Chemistry IV, edited by B.J.J. Zelinski, C.J. Brinker, D. Clark, and D. Ulrich (Mater. Res. Soc. Proc. 180), p. 759.
Bailey, J.K., Pozarnsky, G.A., and Mecartney, M.L., J. Mater. Res., 7(9), 2530 (1992).
Legendre, J.J., and Livage, J., J. Colloid Interface Sci. 94, 75 (1983).
Gharbi, N., Sanchez, C., Livage, J., Lemerle, J., and Lefevre, J., Inorg. Chem., 21, 2758 (1982).
Pozarnsky, G.A. and McCormick, A.V., Chem. Mat. 6(4), 380 (1994).
Lemerle, J., Nejem, L., and Lefebvre, J., J. Inorg. Chem., 42, 17 (1980).
Hiemenz, P., Principles of Colloid and Surface Chemistry (Marcel Dekker, New York, 1986), 2nd ed.
Kachar, B., Evans, D.F., and Ninham, B.W., J. Colloid Interface Sci., 100, 287 (1984).
Evans, D.F., Brady, J., Kachar, B., and Ninham, B.W., J. Solution Chem., 14(3, 141 (1985).
Brady, J.E., Evans, D.F., Kachar, B., and Ninham, B.W., J. Am. Chem. Soc., 106, 4279 (1984).
Brady, J.E., et al., J. Phys. Chem., 90, 1853 (1986).
Aldebert, P., Baffier, N., Gharbi, N., and Livage, J., Mat. Res. Bull., 16, 669 (1981).
Wojetowicz, W.J., Ph.D. Thesis, Wayne State University, 1953.
Watson, J.H.L., Heller, W., and Wojetowicz, W.J., Science, 109, 274 (1949).
Heller, W., Polymer Colloids II, edited by E. Fitch (Plenum Press, New York, 1980), 153.
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Pozarnsky, G.A., Wright, L. & Mccormick, A.V. Effects of aging time on V2O5 sol-gel coatings. J Sol-Gel Sci Technol 3, 57–62 (1994). https://doi.org/10.1007/BF00490149
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DOI: https://doi.org/10.1007/BF00490149