C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 4/10 (2006.01) B32B 15/04 (2006.01) C04B 41/50 (2006.01)
Patent
CA 2126538
A thermal barrier coating and method of depositing the same on the surfaces of combustion chamber components in compression-ignition internal combustion engines is disclosed. The thermal barrier coating is a dual layer having a first metallic layer comprised of MCrAlY material deposited on the component surface. A porous ceramic layer comprised of Yttria partially stabilized zirconia or Ceria-Yttria partially stabilized zirconia is deposited on the metallic layer to impede the flow of heat therethrough. In operation, the metallic layer creates a mechanical bond between the component surface and the ceramic layer, allows for a smooth transition between the differing physicalproperties of the component and the ceramic layer and serves as a corrosion barrier by protecting the component from combustion gases and contaminants. There is further disclosed a method of depositing the thermal barrier coating comprising the steps of (1) chemically treating the component surface to remove dirt and oil; (2) grit blasting the treated component surface to roughen the surface and increase the available surface area for deposition; (3) plasma spray depositing a metallic layer comprised of MCrAlY material on the roughened component surface to a thickness between 0.003-0.006 inches; and (4) depositing a porous ceramic material comprised of 10 %-15 % volume porosity Yttria partially stabilized zirconia or 10 %-15 % volume porosity Ceria- Yttria partially stabilized zirconia on the metallic layer to impede the flow ofheat therethrough.
Begin Roger E.
Dugger David R.
Giles David C.
Paskvan Eric W.
Detroit Diesel Corporation
Smart & Biggar
LandOfFree
Thermal barrier coating and method of depositing the same on... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Thermal barrier coating and method of depositing the same on..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal barrier coating and method of depositing the same on... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1785644