Print Email Facebook Twitter Self-healing thermal barrier coating systems fabricated by spark plasma sintering Title Self-healing thermal barrier coating systems fabricated by spark plasma sintering Author Nozahic, Franck (Université de Toulouse) Estournès, Claude (Université de Toulouse) Carabat, A.L. (TU Delft (OLD) MSE-1) Sloof, W.G. (TU Delft (OLD) MSE-1) van der Zwaag, S. (TU Delft Novel Aerospace Materials) Monceau, Daniel (Université de Toulouse) Date 2018 Abstract The present paper focuses on the Spark Plasma Sintering (SPS) manufacturing of a new type of self-healing thermal barrier coating (TBC) and a study of its thermal cycling behaviour. The ceramic coating consists on an Yttria Partially Stabilized Zirconia (YPSZ) matrix into which healing agents made of MoSi2-Al2O3 core-shell particles are dispersed prior to sintering. The protocol used to sinter self-healing TBCs on MCrAlY (M: Ni or NiCo) pre-coated Ni-based superalloys is described and the reaction between the particles and the MCrAlY bond coating as well as the preventive solutions are determined. Thermal cycling experiments are performed on this complete multilayer system to study the crack healing behaviour. Post-mortem observations highlighted local healing of cracks due to the formation of silica and the subsequent conversion to zircon at the rims of the cracks. Subject Ceramic matrix compositesHigh-temperature cyclic oxidationIntermetallic particlesMulti-layer materialsSelf-healing thermal barrier coatingsSpark plasma sintering To reference this document use: http://resolver.tudelft.nl/uuid:8d3c596f-7228-41cd-a550-ec7bf00386b0 DOI https://doi.org/10.1016/j.matdes.2018.02.001 Embargo date 2019-01-01 ISSN 0264-1275 Source Materials & Design, 143, 204-213 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2018 Franck Nozahic, Claude Estournès, A.L. Carabat, W.G. Sloof, S. van der Zwaag, Daniel Monceau Files PDF 1_s2.0_S0264127518300790_main.pdf 3.18 MB Close viewer /islandora/object/uuid:8d3c596f-7228-41cd-a550-ec7bf00386b0/datastream/OBJ/view