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US 2021/0277510 A1Published application
Method for applying a thermal barrier
AssigneeSafran Aircraft Engines
InventorsPascal Fabrice BILHE, Laurent Paul Dudon, Pascal Jacques Raymond Martinet
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Abstract
A bond sublayer is applied to a part and a ceramic layer is deposited on the bond sublayer by plasma spraying. The ceramic layer is then sintered.
Claims12
A method for obtaining a thermal barrier on a part to be protected, the method comprising:
- forming a bond sublayer on a surface of the part to be protected by plasma spraying, the bond sublayer comprising MCrAlY, wherein M comprises Ni, Co, Fe, or NiCo;
- depositing a ceramic layer on the bond sublayer by thermal spraying using a plasma arc torch, the ceramic layer comprising Yttria-Stabilized Zirconia;
- and
- sintering the ceramic layer by scanning the ceramic layer with a beam of the plasma arc torch, wherein the sintering comprises heating a surface of the ceramic layer to a temperature at a point of impact of the beam on the surface of the ceramic layer between 1300° C. and 1700° C.
1 more element
Dependencies are inferred from the claim text.