Study on the Properties of Coating Films Prepared from Metal Alkoxides

YAMAMOTO Yuji, KAMIYA Kan-ichi, SAKKA Sumio

doi:10.2109/jcersj1950.90.1042_328

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金属アルコキシドを用いるコーテング膜の性質に関する研究
金属アルコキシドを用いるコーティング膜の性質に関する研究
キンゾクアルコキシドオモチイルコーティングマクノセイシツニカン

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Abstract

Transparent and homogeneous coating films of the compositions SiO₂, 98SiO₂⋅2TiO₂, 95SiO₂⋅5TiO₂ and 78.3SiO₂⋅1.7TiO₂⋅20CuO in mol% were prepared by immersing a sodalime glass substrate into metal alkoxide solutions, pulling it up, drying and heating. Effect of preparation conditions on the properties of films was examined. The time for hydrolysis of the solution, that is, interval between preparation of the solution and its application, and the drying time were varied from 1h to 2d and from 1min to 1h, respectively. The films of 0.1-0.3μm in thickness were transparent and homogeneous when the time for hydrolysis of the solution and drying time were short. The thickness of the films could be increased up to 0.5μm by adding a viscosity-increaseing agent to the solution. Defects such as crack, opaqueness or peeling off were observed when the film was thicker than 0.5μm. Scratch strength of the films was higher than that of the glass substrate and increased with increasing heating temperature and heating time. Adhesive strength of the SiO₂ film was higher than 100kg/cm².

Journal

Journal of the Ceramic Association, Japan

Journal of the Ceramic Association, Japan 90 (1042), 328-333, 1982

The Ceramic Society of Japan

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