Analysis of single splats produced by axial suspension plasma spraying
Artikel i vetenskaplig tidskrift, 2017

Axial suspension plasma spraying (ASPS) is a relatively new, innovative technique with which microstructures have been produced that are similar to the ones produced by electron beam physical vapor deposition. They have a columnar structure and consist of nm- and µm-sized pores. However, so far the formation of the microstructure is not fully understood because fragmentation and vaporisation of the liquid significantly affects the deposition process. Analysis of single splats can provide important information on the phenomena controlling the coating formation process and the final coating properties. Therefore, the present study aims at providing first results of 8 wt-% yttria-stabilised zirconia single splats sprayed onto a steel substrate by use of ASPS. Scanning electron microscopy and atomic force microscopy have been used to characterise the splats with respect to appearance, shape, and size distribution.

Axial suspension plasma spray

yttria-stabilised zirconia

columnar structure

single splat analysis

thermal barrier coating




Johanna Ekberg

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Uta Klement

Chalmers, Material- och tillverkningsteknik

Stefan Björklund

Surface Engineering

0267-0844 (ISSN)



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