Porosity measurements in suspension plasma sprayed YSZ coatings
Paper in proceedings, 2017

A large variety of coatings are used to protect structural engineering materials from corrosion, wear, and erosion, and to provide thermal insulation. In this work yttria-stabilized zirconia (YSZ) coatings produced by suspension plasma spraying (SPS) were investigated with respect to their microstructure and especially their porosity, as the porosity affects the thermal insulation of the underlying component. To determine porosity, pore size distribution and pore shape, the coatings were investigated using novel advanced characterization techniques like NMR cryoporometry and X-ray microscopy. In general, the porosity is inhomogeneously distributed and the coatings showed a large variety of pore sizes ranging from a few nanometers to micrometers.

suspension plasma spray

NMR cryoporometry

X-ray microscopy

TBC

YSZ

porosity

Author

Uta Klement

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Johanna Ekberg

Chalmers, Materials and Manufacturing Technology, Surface and Microstructure Engineering

Simone Creci

Chalmers, Chemistry and Chemical Engineering, Applied Chemistry, Applied Surface Chemistry

Stephen T Kelly

Proceedings of Coating Science International (COSi) 2017

118-121

Driving Forces

Sustainable development

Subject Categories

Materials Engineering

Areas of Advance

Materials Science

More information

Created

10/8/2017