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The evaluation of mechanical properties of suspension plasma sprayed zirconia coatings having various microstructures
Wroclaw University of Technology, Faculty of Mechanical Engineering, ul. Lukasiewicza 5, Wroclaw, Poland.
Université Lillel, Laboratoire de Mécanique de Lille, LML UMR 8107, IUTA GMP, BP 90179, Villeneuve d'Ascq, France.
Université Lillel, Laboratoire de Mécanique de Lille, LML UMR 8107, IUTA GMP, BP 90179, Villeneuve d'Ascq, France.
Department of Materials Engineering, Institute of Plasma Physics, Za Slovankou 3, Prague, Czech Republic.
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2016 (English)In: Proceedings of the International Thermal Spray Conference, Vol. 1, p. 573-578Article in journal (Refereed) Published
Abstract [en]

The paper describes the investigations of mechanical properties of various zirconia coatings having different microstructure, phase content and chemical composition. The coatings were deposited using Suspension Plasma Spraying technology. The suspensions were formulated using three different powders: (i) ZrO2 + 8 wt.% Y2O3 (ii) ZrO2 + 14 wt.% of Y2O3 and (iii) ZrO2 + 24 wt.% of CeO2 + 2.5 wt.% of Y2O3. Moreover, three different plasma torches were to spray: (i) SG-100 of Praxair; (ii) Axial III of Mettech and (iii) hybrid Water-Stabilized Plasma torch of IPP Prague. The coatings had different microstructures: a columnar-like and a two-zone-microstructure. The analysis of mechanical properties was performed using instrumented indentation technique (NT) using a multi-cyclic loading to obtain the in-depth variation of the mechanical properties. The hardness (H) and Young’s modulus (E) of coatings were found out. The measurements were made on the surface of coatings. The influence of the coating morphology on their mechanical properties was researched and discussed.

Place, publisher, year, edition, pages
ASM International, 2016. Vol. 1, p. 573-578
Keywords [en]
Cerium compounds; Coatings; Elastic moduli; Indentation; Mechanical properties; Microstructure; Plasma jets; Plasma torches; Sprayed coatings; Zirconia; Zirconium compounds, Chemical compositions; Coating morphology; Depth variation; Instrumented indentation technique; Plasma sprayed; Suspension plasma spraying; Water stabilized plasmas; Zirconia coatings, Plasma spraying
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-11922Scopus ID: 2-s2.0-85034760217OAI: oai:DiVA.org:hv-11922DiVA, id: diva2:1165600
Conference
Conference of International Thermal Spray Conference and Exposition, ITSC 2016 ; 10 May 2016 Through 12 May 2016
Available from: 2017-12-13 Created: 2017-12-13 Last updated: 2017-12-13Bibliographically approved

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