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Crack-Free, Thick Ceramic Coating Films via Non-Repetitive Dip-Coating Using Polyvinylpyrrolidone as Stress-Relaxing Agent

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Abstract

BaTiO3 and PZT films were prepared from alkoxide-acetate solutions containing polyvinylpyrrolidone (PVP) by non-repetitive dip-coating. It was demonstrated that PVP incorporated in gel films suppresses crack formation during heating and increases the critical thickness, the maximum thickness achievable without crack formation via single-step deposition. Using PVP crack-free BaTiO3 and PZT films 1.2 and 0.5 μm in thickness could be prepared, respectively, via single-step dip-coating. The films were fairly transparent and dense in microstructure. The tensile stress in heat-treated BaTiO3 films was also demonstrated to decrease significantly by incorporating PVP in gel films.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Kansai University 3-3-35 Yamate-cho, Suita, 564-8680, Japan

    Hiromitsu Kozuka, Masahiro Kajimura, Toshihiro Hirano & Katsumi Katayama

Authors
  1. Hiromitsu Kozuka
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  2. Masahiro Kajimura
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  3. Toshihiro Hirano
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  4. Katsumi Katayama
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Kozuka, H., Kajimura, M., Hirano, T. et al. Crack-Free, Thick Ceramic Coating Films via Non-Repetitive Dip-Coating Using Polyvinylpyrrolidone as Stress-Relaxing Agent. Journal of Sol-Gel Science and Technology 19, 205–209 (2000). https://doi.org/10.1023/A:1008780120351

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  • DOI: https://doi.org/10.1023/A:1008780120351

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