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EBSD Analysis and Assessment of Porosity in Thermal Barrier Coatings Produced by Axial Suspension Plasma Spraying (ASPS)
Chalmers University of Technology, Sweden.
Chalmers University of Technology, Sweden.
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0003-1897-0171
2017 (English)In: Materials Science Forum, THERMEC 2016: Chapter 2: Contributed Papers / [ed] C. Sommitsch, M. Ionescu, B. Mishra, E. Kozeschnik och T. Chandra, Trans Tech Publications, 2017, Vol. 879, 972-977 p.Conference paper (Refereed)
Abstract [en]

Axial suspension plasma spraying (ASPS) is a relatively new, innovative spraying technique which has produced thermal barrier coatings (TBCs) with attractive properties such as high durability and low thermal conductivity. Using a suspension, it is possible to spray with finer powder particles resulting in coatings that have a columnar microstructure and contain a wide range of pore sizes, both nm-and ╬╝m-sized pores. To optimize the thermal properties and to maintain them during service of the components, it will be important to design TBCs with optimal porosity. Hence, an important part in the assessment of ASPS coatings is therefore the characterization of the microstructure and how it is build up, and the determination of porosity. Both aspects are addressed by performing measurement on splats and ASPS-coating using electron backscatter diffraction (EBSD) technique and by measuring porosity by Mercury Intrusion Porosimetry (MIP).

Place, publisher, year, edition, pages
Trans Tech Publications, 2017. Vol. 879, 972-977 p.
Keyword [en]
Axial Suspension Plasma Spraying, Electron Backscatter Diffraction (EBSD), Mercury Intrusion Porosimetry, Porosity, Scanning Electron Microscopy (SEM), Thermal Barrier Coatings (TBCs), XRM
National Category
Manufacturing, Surface and Joining Technology
Identifiers
URN: urn:nbn:se:hv:diva-10328DOI: 10.4028/www.scientific.net/MSF.879.972ScopusID: 2-s2.0-85000428327OAI: oai:DiVA.org:hv-10328DiVA: diva2:1057267
Conference
THERMEC'2016, International Conference of Processing & Manufacturing of Advanced Materials: Processing, Fabrication, Properties, Applications, Graz, Austria, May 29- June 3, 2016
Available from: 2016-12-16 Created: 2016-12-16 Last updated: 2016-12-20Bibliographically approved

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Ganvir, Ashish
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