Method to improve the thermal properties of a resistance element embedded in an alumina deposit on a surface of a substrate and application of said method
AssigneeSnecma
InventorsVanessa Aurelie Gislard, Melanie Alice Camille Ruelle
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Abstract
A method for improving the heat resistance of a resistive element embedded in an alumina deposit covering a surface of a substrate, in which the alumina deposit includes a surface portion and a deep portion which is sandwiched between the surface portion and the surface of the substrate and in which the resistive element is located, is provided. The method includes a densification of the surface portion of the alumina deposit.
Claims6
A method for improving the heat resistance of a resistive element embedded in an alumina deposit covering a surface of a substrate, the alumina deposit comprising a surface portion and a deep portion which is sandwiched between the surface portion and the surface of the substrate and in which the resistive element is located, the method comprising:
- densificating the surface portion of the alumina deposit, the densificating including
- a) impregnating said surface portion by a solution comprising alumina particles and an aluminium phosphate;
- b) drying the surface portion so impregnated;
- and
- c) applying a heat treatment to the surface portion so dried.
Dependencies are inferred from the claim text.