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3D analysis of porosity in a ceramic coating using x-ray microscopy

Uta Klement (1), Johanna Ekberg (1), Stephen T. Kelly (2)

Journal of Thermal Spray Technology, 26, Issue 3, 31 January 2017:456-463.


Porosity; Pore size distribution; Suspension plasma spray; TCB; Topcoat; X-ray microscopy; Yttria-stabilized zirconia


Suspension plasma spraying (SPS) is a new, innovative plasma spray technique using a feedstock consisting of fine powder particles suspended in a liquid. Using SPS, ceramic coatings with columnar microstructures have been produced which are used as topcoats in thermal barrier coatings. The microstructure contains a wide pore size range consisting of inter-columnar spacings, micro-pores and nano-pores. Hence, determination of total porosity and pore size distribution is a challenge…

How Our Software Was Used

Determine the fraction of open and closed porosity. Analysis for volume of closed pores larger than 3 x 3 x 3 voxels. All renderings and measurements of the 3D nanoscale x-ray microscopy data.

Author Affiliation

(1) Department of Materials and Manufacturing Technology, Chalmers University of Technology, Gothenburg, Sweden
(2) Carl Zeiss X-ray Microscopy Inc., Pleasanton, USA

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