Thermal barrier removal process

Details Thermal barrier removal process Thermal barrier removal process

1998-12-23

2000-12-12

Lopez, F. Daniel

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Specific casing or vane material

416241R, 134 26, B08B 310

Patent

active

061589578

ABSTRACT:
The invention is a process for removing ceramic thermal barrier layers from gas turbine engine hardware. A combination of chemical and mechanical steps are used to remove the thermal barrier coating from the substrate without removing the bond coat from the substrate. The process leaves the bond coat on the substrate in condition to receive a repair ceramic thermal barrier coating. The process includes a caustic solution treatment in an autoclave under controlled conditions followed by a mechanical abrasion process.

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