Microstructure and indentation mechanical properties of YSZ nanostructured coatings obtained by suspension plasma spraying
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Other documents of the author: Carpio Cobo, Pablo; Rayón, E.; Pawłowski, L.; Cattini, A.; Benavente, Rut; Bannier, Emilie; Salvador, M. D.; Sánchez-Vilches, Enrique
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comunitat-uji-handle2:10234/7033
comunitat-uji-handle3:10234/8618
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Title
Microstructure and indentation mechanical properties of YSZ nanostructured coatings obtained by suspension plasma sprayingAuthor (s)
Date
2013-04Publisher
ElsevierBibliographic citation
CARPIO, P., et al. Microstructure and indentation mechanical properties of YSZ nanostructured coatings obtained by suspension plasma spraying. Surface and Coatings Technology, 2013, 220: 237-243.Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S0257897212009255Version
info:eu-repo/semantics/submittedVersionSubject
Abstract
A commercial nanosuspension of yttria-stabilised zirconia (YSZ) was successfully deposited on austenitic stainless steel substrate by suspension plasma spraying technique (SPS). A SG-100 torch with internal radial ... [+]
A commercial nanosuspension of yttria-stabilised zirconia (YSZ) was successfully deposited on austenitic stainless steel substrate by suspension plasma spraying technique (SPS). A SG-100 torch with internal radial injection was used for the spraying. The pneumatic system transported the feed suspension from the containers to the plasma torch. In order to study the effect of the spraying parameters, a factorial model was used to design the experiments, changing both spraying translation speed and suspension flow rate.
The coating microstructure was characterised by FEG-SEM. All coatings displayed a two-zone microstructure formed by nanometre-sized particles surrounded by fully molten areas. Moreover, crystalline phases were determined by XRD and Raman spectroscopy. Mechanical properties were also determined using nanoindentation technique. Nanoindentation tests showed a bimodal distribution of the mechanical properties (hardness and Young's modulus) which is related to the two zones (molten and partially molten) present in the coatings. [-]
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Surface and Coatings Technology Volume 220, April 2013Rights
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