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US 12,247,491 B2Granted
Abradable coating
AssigneeSafran Aircraft Engines
InventorsGuillaume Fradet, Laurent Paul Dudon, Serge Georges Vladimir Selezneff
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Abstract
An abradable coating for a turbomachine, as well as a turbomachine module and a turbomachine including such an abradable coating, the abradable coating including, with a content of greater than 50% by volume, an inorganic compound whose Mohs hardness is less than 6 and whose melting temperature is greater than 900° C.
Claims21
An abradable track suitable for a turbomachine, the abradable track comprising:
- a substrate;
- and
- abradable coating, provided on the substrate;
- wherein the abradable coating comprises, in a content of greater than 95 vol. %, Ca10(PO4)6(OH)2, LaPO4, or diatomaceous earth, and
- wherein the abradable coating has a surface roughness Ra of less than 3 μm.
2 more elements
Dependencies are inferred from the claim text.