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US 2021/0340874 A1Published application
Damping coating with a constraint layer
AssigneeGeneral Electric Company
InventorsJames Zhang, John McConnell Delvaux
Life of this patent
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Abstract
A coating is applied to a base material. The coating comprises a viscoelastic layer; and a constraint layer; wherein the viscoelastic layer is disposed on the base material and the constraint layer is disposed on the viscoelastic layer.
Claims20
A coating, the coating applied to a base material, the coating comprising:
- a viscoelastic layer;
- and
- a constraint layer;
- wherein
- the viscoelastic layer is disposed on the base material and the constraint layer is disposed on the viscoelastic layer.
2 more elements
A turbine blade, the turbine blade comprising a base material;
- a coating applied to the base material, wherein the coating includes:
- a viscoelastic layer;
- and
- a constraint layer;
- wherein
- the viscoelastic layer is disposed on the base material and the constraint layer is disposed on the viscoelastic layer.
3 more elements
A gas turbine system, the gas turbine system comprising a turbine blade, the turbine blade the turbine blade defining a base material, the gas turbine system further including:
- a coating, wherein the coating includes:
- a viscoelastic layer;
- and
- a constraint layer;
- wherein
- the viscoelastic layer is disposed on the base material and the constraint layer is disposed on the viscoelastic layer, wherein the viscoelastic layer and the constraint layer join at an interface therebetween, the viscoelastic layer is partially bonded to the constraint layer;
- and wherein defects are formed at the interface partially bonding the viscoelastic layer to the constraint layer, the defects enabling vibration and frictional interaction at the partially bonded interface between the partially bonded viscoelastic layer and the constraint layer.
4 more elements
Dependencies are inferred from the claim text.