Invention Grant
- Patent Title: Seal coating
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Application No.: US16388219Application Date: 2019-04-18
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Publication No.: US11702950B2Publication Date: 2023-07-18
- Inventor: John R. Farris , Michael G. McCaffrey
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: Raytheon Technologies Corporation
- Current Assignee: Raytheon Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Kinney & Lange. P.A.
- The original application number of the division: US14883289 2015.10.14
- Main IPC: F01D11/12
- IPC: F01D11/12 ; B05D3/00 ; F01D25/00 ; C23C4/01 ; C23C28/04 ; C23C4/18 ; C23C4/11

Abstract:
A method of forming a coating includes disposing a substrate having a plurality of protrusions on a seal and layering a topcoat over the protrusions. The method of forming a coating also includes creating a wear pattern and converting the topcoat. A turbine section includes a casing, a plurality of blades within the casing, and a substrate deposited on the casing having a plurality of protrusions. The turbine also includes an unconverted topcoat disposed over the plurality of protrusions, the topcoat having segmented portions defining a plurality of faults extending from the protrusions through the topcoat. A method of forming a coating includes creating a channel in the coating during an initial rub event and converting the coating during a high-temperature event. Converting the coating includes preserving the channel created during the initial rub event.
Public/Granted literature
- US20200025014A1 SEAL COATING Public/Granted day:2020-01-23
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