ABRADABLE COATING

• Main Authors: SELEZNEFF, Serge Georges Vladimir, DUDON, Laurent Paul, FRADET, Guillaume
• Format: Patent
• Language: English; French
• Published: 02.09.2021
• Subjects: BLASTING; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ENGINE PLANTS IN GENERAL; HEATING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; WEAPONS

The invention relates to an abradable coating for a turbomachine, comprising a mineral compound having a Mohs hardness of 6 or less and a melting temperature of more than 450 °C or even 800 °C, and a polymeric compound with a content of between 40% and 70% by volume. L'invention concerne un revêtement abradable pour turbomachine, comprenant un composé minéral, dont la dureté Mohs est inférieure ou égale à 6 et dont la température de fusion est supérieure à 450°C, voire 800°C, et un composé polymérique, avec une teneur comprise entre 40 % et 70 % en volume.