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Preparation of uniform TiO2 nanostructure film on 316L stainless steel by sol-gel dip coating

Barati, N ; Sharif University of Technology | 2009

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  1. Type of Document: Article
  2. DOI: 10.1016/j.apsusc.2009.05.048
  3. Publisher: 2009
  4. Abstract:
  5. Sol was prepared by the mixing of tetra-η-butyle titanat, ethyl aceto acetate, and ethanol in an optimized condition. Polished 316L specimens were coated with the sol by dip-coating method. The influences of drying condition, withdrawal speed, calcination temperature, addition of dispersant, and pH of sol on TiO2 nanostructure coating were investigated. Choosing of alcohol as drying atmosphere hindered the crack formation. The relation between coating thickness and withdrawal speed was evaluated. The optimum temperature to create a uniform distribution of nanoparticles of anatase was derived as 400 °C. Average roughness of coating was found about 10.61 nm by AFM analysis. Dispersant addition promoted formation of a uniform film as well as prevention of agglomeration. Acidic sol provided smaller particles than neutral sol. © 2009 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Anatase ; Nanostructure coating ; Sol-gel ; 316 L stainless steel ; AFM ; Anatase ; Calcination temperature ; Coating thickness ; Crack formation ; Dip-coating ; Dipcoating methods ; Dispersant ; Drying atmosphere ; Drying condition ; Nanostructure coatings ; Optimized conditions ; Optimum temperature ; Sol gel dip coating ; TiO ; Uniform distribution ; Uniform films ; Agglomeration ; Calcination ; Dewatering ; Ethanol ; Film preparation ; Gelation ; Gels ; Nanostructures ; Sol-gel process ; Sol-gels ; Sols ; Stainless steel ; Thickness measurement ; Titanium dioxide ; Titanium oxides ; Coatings
  8. Source: Applied Surface Science ; Volume 255, Issue 20 , 2009 , Pages 8328-8333 ; 01694332 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0169433209006515