Advanced Ceramic Tribological Layers by Thermal Spray Routes

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Protective and functional coatings featuring outstanding tribological performance are of general interest for all kinds of industrial applications i.e for high performance automotive and mechanical applications. Thermal spray coating technologies play a key role in fabricating hard layers based on ceramic, metal - ceramic and further multiphase materials. Additional functionality can be achieved by combining these coatings with polymer based top coats with low friction coefficient or anti adhesive behaviour. Combined coatings feature also designed thermophysical and electrophysical properties. Several case studies will be discussed, ranging from automotive applications to paper and printing industry. Thermally sprayed coatings were applied using APS, HVOF and the newly developed HVSFS processes (High Velocity Suspension Spraying) with a special focus on nanoceramic feedstocks. In some applications polymer top coats with dispersed solid phases are applied to enhance functional properties. Special aspects in manufacturing engineering are addressed with particular importance not only of the influence of spray process parameters on coating properties but also of spray torch kinematic and robot trajectories on hardness, residual stress distributions, dimensional tolerances and porosity distributions will be discussed.

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Periodical:

Edited by:

Pietro VINCENZINI and Ghislain MONTAVON

Pages:

106-119

Citation:

R. Gadow et al., "Advanced Ceramic Tribological Layers by Thermal Spray Routes", Advances in Science and Technology, Vol. 66, pp. 106-119, 2010

Online since:

October 2010

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$38.00

[1] R. Gadow, A. Killinger, M. Kuhn, D. López, Hochgeschwindigkeitssuspensionsflammspritzen, Deutsche Patentanmeldung Nr. DE 10 2005 038 453 A1.

[2] G. Bolelli, V. Cannillo, R. Gadow, A. Killinger, L. Lusvarghi, J. Rauch, Microstructural and Tribological Investigation of High-Velocity Suspension Flame Sprayed (HVSFS) Al2O3 Coatings, Journal of Thermal Spray Technology Volume 18(1) March 2009, pp.35-49.

DOI: https://doi.org/10.1007/s11666-008-9279-9

[3] R. Gadow, J. Rauch, A. Killinger Manzat, A. Killinger Killinger, Application of Supersonic Flame Spraying for Next Generation Cylinder Liner Coatings, in: Proceedings of the 2nd International Conference on Sustainable Automotive Technologies 2010, J. Wellnitz, A. Subic, M. Leary (Eds. ), Springer Verlag Heidelberg, 2010, ISBN 978-3-642-10796-2.

DOI: https://doi.org/10.1007/978-3-642-10798-6_22

[4] M. Woydt, Tribological characteristics of polycrystalline Magnéli-type titanium dioxides, Tribology Letters 8, (2000), 117 -130.

[5] R. Gadow, D. Scherer, Composite Coatings on Light Metal Substrates with Dry Lubrication Ability, Surface & Coatings Technology, No. 151 - 152, Elsevier Science (2002), ISSN 0257-8972, pp.471-477.

DOI: https://doi.org/10.1016/s0257-8972(01)01636-x

[6] A. Manzat, Anpassung und Optimierung eines Prozesses zur Beschichtung von Zylinderlaufflächen mittels überschallschnellem Pulverflammspritzen, Diploma thesis, University of Stuttgart, (2009).

[7] A. Candel; R. Gadow, Trajectory Generation and Coupled Numerical Simulation for Thermal Spraying Applications on Complex Geometries, Journal of Thermal Spray Technology, Vol. 18 (5-6) (2009).

DOI: https://doi.org/10.1007/s11666-009-9338-x

[8] M. Wenzelburger, D. Lopéz, R. Gadow, Methods and application of residual stress analysis in thermally sprayed coatings and composites, Surface and Coatings Technology, 201.

DOI: https://doi.org/10.1016/j.surfcoat.2006.04.040

[5] (2006), ISSN: 0257-8972, p.1995 – (2001).

[9] A. Candel, R. Gadow, and D. López, Advanced robot assisted manufacturing and control system for the internal HVOF series coating process of cylinder bores in light weight engine manufacturing, SAE 2004 Transactions - Journal of Materials & Manufacturing, 2005, 113(5), p.232.

DOI: https://doi.org/10.4271/2004-01-0602

[10] Y. Bao, T. Zhang, and D. T. Gawne, Computational Model for the Prediction of the Temperature in the Coating during Thermal Spraying, Thermal Spray 2004: Advances in Technology and Application, ASM International, May 10-12, 2004 (Osaka, Japan), ASM International (2004).

[11] E. S. Davids, S. R. Duncan, and P. S. Grant, Modelling and Validation of Substrate Heat Transfer Coefficient Distribution in Vacuum Plasma Spraying, Thermal Spray 2006, B. R. Marple, M. M. Hyland, Y. C. Lau, C. J. Li, R. S. Lima and J. Voyer, Ed., May 15-18, 2006 (Seattle, USA), ASM International (2006).