EBSD Analysis and Assessment of Porosity in Thermal Barrier Coatings Produced by Axial Suspension Plasma Spraying (ASPS)
Paper i proceeding, 2017

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 μm-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).

Mercury intrusion porosimetry

EBSD

Porosity

Thermal barrier coating

XRM

Axial suspension plasma spraying

SEM

Författare

Uta Klement

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Johanna Ekberg

Chalmers, Material- och tillverkningsteknik, Yt- och mikrostrukturteknik

Ashish Ganvir

Högskolan Väst

Materials Science Forum

0255-5476 (ISSN)

Vol. 879 972-977

Drivkrafter

Hållbar utveckling

Ämneskategorier

Materialteknik

Annan materialteknik

Styrkeområden

Materialvetenskap

DOI

10.4028/www.scientific.net/MSF.879.972

ISBN

978-303571129-5

Mer information

Senast uppdaterat

2018-04-18