Invention Grant
- Patent Title: Laser assisted oxide removal
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Application No.: US14683820Application Date: 2015-04-10
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Publication No.: US09683281B2Publication Date: 2017-06-20
- Inventor: Robert J. Meehan , Neil B. Ridgeway , Christopher J. Millea
- Applicant: United Technologies Corporation
- Applicant Address: US CT Farmington
- Assignee: United Technologies Corporation
- Current Assignee: United Technologies Corporation
- Current Assignee Address: US CT Farmington
- Agency: Kinney & Lange, P.A.
- Main IPC: B05D3/00
- IPC: B05D3/00 ; C08J7/18 ; G21H5/00 ; C23C4/02 ; C23C4/18 ; C23C14/08 ; C23C14/30 ; C23C28/00 ; C23C4/073 ; B23K26/082 ; C23C4/134 ; B23K26/122 ; B23K26/12 ; B23K26/40 ; C23C14/02 ; C23C14/32 ; F01D5/28 ; B23K103/10

Abstract:
A method of forming a thermal barrier coating on a metal part includes laser cleaning a surface of the metal part to remove undesirable oxides and residues from the surface of the part. It further includes depositing an aluminum containing bondcoat on the part and thermally interdiffusing the bondcoat and the part with a heat treatment. Laser cleaning a surface of the bondcoat to remove oxides and debris from the surface forms an alpha aluminum oxide layer on the bondcoat. A ceramic topcoat is then deposited on the alpha aluminum oxide layer at a temperature above 1800° F. (982° C.).
Public/Granted literature
- US20160298222A1 LASER ASSISTED OXIDE REMOVAL Public/Granted day:2016-10-13
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