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Structure of Thin Sol-Gel Coatings Near The Surface of Substrates

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The sol-gel method is one of the most appropriate technologies for the preparation of functional thin oxide coatings. However, few studies on the structure near the interface between sol-gel coatings and substrates have been reported. In this study, the structures of thin TiO2 gel coatings were investigated by XPS in order to elucidate the interaction between the coatings and the glass substrates. TiO2 gel coatings were prepared from Ti-alkoxide by hydrolysis and dip-coating on silica glass plates. Thickness and refractive index measurements were made by ellipsometry. Changes in Ols spectra for the coatings were observed at locations near the interface. Dynamic microhardness measurements for the coatings and the coated glasses were made. These results suggest the formation of a Ti-O-Si bond at the interface.

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Authors and Affiliations

  1. Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223, Japan

    Hiroshi Hirashima & Takao Kusaka

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  1. Hiroshi Hirashima
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  2. Takao Kusaka
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Hirashima, H., Kusaka, T. Structure of Thin Sol-Gel Coatings Near The Surface of Substrates. MRS Online Proceedings Library 271, 443–448 (1992). https://doi.org/10.1557/PROC-271-443

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  • DOI: https://doi.org/10.1557/PROC-271-443

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