The aim of this study is to quantify the pore network architecture of thick zirconia coatings deposited by suspension plasma spraying of nano-sized particles. It is shown by FESEM fractography that the coatings exhibit a granular structure with a lamellar layer at the substrate interface and that the average void diameter is orders of magnitude smaller than the resolution of conventional SEM systems.

FESEM fractography, field emission scanning electron microscope, nanopowder, pore network, suspension plasma spraying, yttrium-partially stabilized zirconia coatings
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Copyright © 2009 ASM International. All rights reserved.
2009
ASM International
Topics
Nanostructure Electron fractography Yttria-stabilized zirconia Suspension plasma spray coating Porosity Scanning electron microscopes
Issue Section:
Properties, Characterization, and Testing
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