CHAHHOU, Bilal; LABRUGERE-SARROSTE, Chritine; IBALOT, Fabienne; DANET, J.; ROGER, Jerome

doi:10.1016/j.jeurceramsoc.2022.05.054

Laboratoire des Composites Thermostructuraux [LCTS]

LABRUGERE-SARROSTE, Chritine

IBALOT, Fabienne

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Article de revue

Ce document a été publié dans

Journal of the European Ceramic Society. 2022-10, vol. 42, n° 13, p. 5484-5492

Résumé en anglais

Coatings with composition close to Ti3SiC2 were obtained on SiC substrates from Ti and Si powders with the molten NaCl method. In this work, the growth of coatings by reaction in the salt between monolithic SiC substrates and titanium powder is obtained between 1000 and 1200 °C. At 1000 °C, a coating of 8 µm thickness is formed in 10 h whereas a thin coating of 0.5 µm has been grown in 2 h. A lack in silicon was first found in the coatings prepared at 1100 and 1200 °C. For these temperatures, the addition of silicon powder in the melt had a favorable effect on the final composition, which is found very close to the composition of Ti3SiC2. The reaction mechanism implies the formation of TiCx layers in direct contact with the SiC substrate and the presence of more or less important quantities of Ti3SiC2 and Ti5Si3Cx in the upper layers.< Réduire

Mots clés en anglais

Coating

Molten salt

Silicon carbide

Synthesis

TiSiC

URI

https://oskar-bordeaux.fr/handle/20.500.12278/171770

DOI

http://dx.doi.org/10.1016/j.jeurceramsoc.2022.05.054

Unités de recherche

Laboratoire des Composites Thermo Structuraux (LCTS) - UMR 5801

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Synthesis of Ti3SiC2 coatings onto SiC monoliths from molten salts

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Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

URI

DOI

Unités de recherche