Journal of Sol-Gel Science and Technology

, Volume 19, Issue 1, pp 205–209

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

  • Hiromitsu Kozuka
  • Masahiro Kajimura
  • Toshihiro Hirano
  • Katsumi Katayama
Article

DOI: 10.1023/A:1008780120351

Cite this article as:
Kozuka, H., Kajimura, M., Hirano, T. et al. Journal of Sol-Gel Science and Technology (2000) 19: 205. doi:10.1023/A:1008780120351

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.

BaTiO3 filmscoating filmscracks in filmsPZT filmsstress in films

Copyright information

© Kluwer Academic Publishers 2000

Authors and Affiliations

  • Hiromitsu Kozuka
    • 1
  • Masahiro Kajimura
    • 1
  • Toshihiro Hirano
    • 1
  • Katsumi Katayama
    • 1
  1. 1.Department of Materials Science and EngineeringKansai University 3-3-35 Yamate-choSuitaJapan