Method of making abradable seal having improved properties
OwnerWilliam John Dalzell Jr., Stuart Alan Sanders +2inventors
InventorsWILLIAM JOHN DALZELL JR., STUART ALAN SANDERS, GEORGE LEE CRAWFORD, FREDERICK CLELL WALDEN
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Abstract
An air seal for use in a gas turbine engine provides improved durability, particularly at higher temperatures. The seal includes a seal substrate, and an abradable layer is provided on the substrate by a thermal spray process, with the abradable including a thermoset polymer and a thermoplastic polymer. The abradable may also include a filler to add porosity, or provide lubrication, to enhance abradability.
Claims13
A method of forming an air seal for use in a gas turbine engine having improved durability, comprising:
- providing a seal substrate;
- and
- applying an abradable seal layer on to the substrate, including applying a thermoset polymer bulk material and a thermoplastic binder material.
A method of forming an air seal for use in a gas turbine engine having improved durability, comprising:
- providing a seal substrate;
- and
- thermal spraying an abradable seal layer on to the substrate, including spraying a thermoset polymer bulk material and a thermoplastic binder material.
Dependencies are inferred from the claim text.