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Introduction to High-Velocity Suspension Flame Spraying (HVSFS)

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Abstract

High-velocity suspension flame spraying (HVSFS) has been developed to thermally spray suspensions containing micron, submicron, and nanoparticles with hypersonic speed. For this purpose, the suspension is introduced directly into the combustion chamber of a modified HVOF torch. The aim in mind is to achieve dense coatings with a refined microstructure. Especially from nanostructured coatings superior physical properties are expected for many potential applications. Direct spraying of suspensions offers flexibility in combining and processing different materials. It is a cost-saving process and allows the allocation of entirely new application fields. The paper gives an overview of the HVSFS spray method and will present some actual results that have been achieved by spraying the nanooxide ceramic materials Al2O3, TiO2, 3YSZ, and Cr2O3.

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Authors and Affiliations

  1. Institute for Manufacturing Technologies of Ceramic Components and Composites (IFKB), University of Stuttgart, Allmandring 7b, D-70569, Stuttgart, Germany

    Rainer Gadow, Andreas Killinger & Johannes Rauch

Authors
  1. Rainer Gadow
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  2. Andreas Killinger
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  3. Johannes Rauch
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Corresponding author

Correspondence to Rainer Gadow.

Additional information

This article is an invited paper selected from presentations at the 2008 International Thermal Spray Conference and has been expanded from the original presentation. It is simultaneously published in Thermal Spray Crossing Borders, Proceedings of the 2008 International Thermal Spray Conference, Maastricht, The Netherlands, June 2-4, 2008, Basil R. Marple, Margaret M. Hyland, Yuk-Chiu Lau, Chang-Jiu Li, Rogerio S. Lima, and Ghislain Montavon, Ed., ASM International, Materials Park, OH, 2008.

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Gadow, R., Killinger, A. & Rauch, J. Introduction to High-Velocity Suspension Flame Spraying (HVSFS). J Therm Spray Tech 17, 655–661 (2008). https://doi.org/10.1007/s11666-008-9264-3

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  • DOI: https://doi.org/10.1007/s11666-008-9264-3

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