Skip to main content
Log in

Improving surface properties by laser-based drying, gelation, and densification of printed sol–gel coatings

  • Published:
Journal of Coatings Technology and Research Aims and scope Submit manuscript

Abstract

In this article, an innovative laser-based inline-capable coating process for the production of highly wear resistant coatings is presented. A zirconia-based sol–gel material is applied onto hardened and tempered steel substrates by a PipeJet-based printing process and spin-coating. Green films with a thickness of 100–200 nm are produced. Drying, gelation, and transformation of the green films into mechanically resistant wear protection coatings is done by laser treatments. Due to the precise temporal and spatial controllability of the diode laser radiation it is possible to generate temperatures >1000°C, required for the crystallization of the films, as well as to minimize the thermal load of the substrate. The formation of a tetragonal ZrO2 phase within the films is achieved by the laser treatment. According to finite-element calculations the temperature penetration depth of temperatures >150°C (thermal stability of the substrate around 180°C) is reduced to 20–100 μm by using pulsed diode laser radiation. The evolution of the layer thickness as well as chemical and morphological coating properties is investigated by white light interferometry, Fourier transform infrared spectroscopy, and grazing-incidence XRD measurements.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12

Similar content being viewed by others

References

  1. Holmberg, K, Andersson, P, Erdemir, A, “Global Energy Consumption Due to Friction in Passenger Cars.” Tribol. Int., 47 221–234 (2012)

    Article  Google Scholar 

  2. Kursawe, M, Anselmann, R, Hilarius, V, Pfaff, G, “Beschichtungen über Sol–Gel-Prozesse.” In: Bach, FW, Möhwald, K, Laarmann, A, Wenz, T (eds.) Moderne Beschichtungsverfahren, pp. 225–241. Wiley-VCH Verlag GmbH & Co, KGaA, Weinheim, 2005

    Chapter  Google Scholar 

  3. Brinker, CJ, Scherer, GW, Sol–Gel Science. Academic Press, London, 1990

    Google Scholar 

  4. Del Monte, F, Larsen, W, Mackenzie, JD, “Stabilization of Tetragonal ZrO2 in ZrO2–SiO2 Binary-Oxides.” J. Am. Ceram. Soc., 83 (3) 628–634 (2000)

    Article  Google Scholar 

  5. Uhlmann, I, Hawelka, D, Hildebrandt, E, Pradella, J, Rödel, J, “Structure and Mechanical Properties of Silica Doped Zirconia Thin Films.” Thin Solid Films (2012). doi:10.1016/j.tsf.2012.08.007

  6. Hawelka, D, Stollenwerk, J, Pirch, N, Wissenbach, K, “Laser Based Production of Thin Wear Protection Films.” Proceedings of the ICALEO 29th International Congress on Applications of Lasers & Electro Optics, Anaheim/CA, Paper 1709, September 2010

  7. Hawelka, D, Stollenwerk, J, Pirch, N, Wissenbach, K, Buesing, L, “Laser Based Inline Production of Wear Protection Coating on Temperature Sensitive Substrates.” Proc. Lasers in Manufacturing, Phys. Proced. 12 (Part A) 490–498 (2011)

  8. Streule, W, Lindemann, T, Birkle, G, Zengerle, Koltay, P, “PipeJet: A Simple Disposable Dispenser for the Nano- and Microliter Range.” JALA, 9 (5) 300–306 (2004)

    Google Scholar 

  9. SCOUT software, W. Theiss Hard- und Software, www.mtheiss.com

  10. Pirch, N, Keutgen, S, Gasser, A, Wissenbach, K., Kelbassa, I., “Modeling of Coaxial Single and Overlap-Pass Cladding with Laser Radiation.” Proceedings of the 37th Int. Matador Conference, pp. 377–380, 2012

  11. Pirch, N, Mokadem, S, Keutgen, S, Wissenbach, K, Kreutz E W, “3D-Model for Laser Cladding by Power Injection,” Proceedings of the LANE 2004, Laser Assisted Net Shape Engineering 4, Vol. 2, pp. 851–858, 2004

  12. Bouvier, P, Gupta, HC, Lucazeau, G, “Zone Center Phonon Frequencies in Tetragonal Zirconia: Lattice Dynamical Study and New Assignment Proposition.” J. Phys. Chem. Solids, 62 873–879 (2001)

    Article  Google Scholar 

Download references

Acknowledgments

The presented research is built on a project funded by the German Federal Ministry of Education and Research within the framework of the funding measure “Material Processing with Brilliant Laser Sources” (MABRILAS). The authors would also like to thank the Schaeffler Technologies AG & Co. KG, Merck KGaA Darmstadt, DILAS GmbH and Biofluidix GmbH for the excellent cooperation within the project consortium FunLas.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Dominik Hawelka.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Hawelka, D., Stollenwerk, J., Pirch, N. et al. Improving surface properties by laser-based drying, gelation, and densification of printed sol–gel coatings. J Coat Technol Res 11, 3–10 (2014). https://doi.org/10.1007/s11998-013-9516-0

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11998-013-9516-0

Keywords

Navigation