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The Dual Character of MAX Phase Nano-Layered Structure Highlighted by Supersonic Particles Deposition

Abstract : MAX phase compounds offer an attractive mixture of ceramic–metallic properties due to their covalent ionic–metallic nature. Since their discovery, a great interest was attributed to their synthesis and potential applications, but the processing of pure compounds as coatings for industrial large-scale application is still considered a challenge. To date, a limited number of papers have evaluated the build-up of MAX phase coating by cold spray (CS), a novel cost-effective and productive spray technology used in both areas of research and industry. Employing CS, the hot gas-propelled material particles have ballistic impingement on a substrate where they undergo plastic deformation. Because of the brittleness, internal delamination, and limited deformability, the deposition of the pure MAX phase is rather challenging. This paper presents the building-up ability of dense MAX-phase coatings by CS with retained structures and compositions, in close relation with the substrate characteristics and phase composition that influences the dual character ceramic–metallic behaviour. Besides recent literature, the originality of this research consists of pioneering deposition of Ti3AlC2 that emphasizes the ceramic–metallic character influenced by the particle speed and the mechanical properties of both substrate and compound.
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https://hal-unilim.archives-ouvertes.fr/hal-03401090
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Soumis le : lundi 25 octobre 2021 - 11:35:44
Dernière modification le : mardi 26 octobre 2021 - 04:00:21

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Alberto Ion, Pierre Sallot, Victor Badea, Patrice Duport, Camelia Popescu, et al.. The Dual Character of MAX Phase Nano-Layered Structure Highlighted by Supersonic Particles Deposition. Coatings, MDPI, 2021, 11 (9), pp.1038. ⟨10.3390/coatings11091038⟩. ⟨hal-03401090⟩

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