Laser assisted oxide removal
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United States of America Patent
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Jun 20, 2017
Issued Date -
N/A
app pub date -
Apr 10, 2015
filing date -
Apr 10, 2015
priority date (Note) -
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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.).
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
- B05D:PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MAT....
- G21H:OBTAINING ENERGY FROM RADIOACTIVE SOURCES; APPLICA....
- B23K:SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLA....
- F01D:NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g....
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