Abstract: A process for the deposition of a coating on at least a part of a metallic substrate, a) mixing a liquid and a powder having particles of a metallic material to be deposited and particles of a pickling agent, so as to prepare a suspension, b) application of the suspension prepared in step a) to at least a part of the surfaces of the metallic substrate, so as to obtain a substrate-suspension assembly, c) carrying out a heat treatment of the assembly which includes heating at a first temperature of at least 500° C. and heating at a second temperature greater than the first temperature, and d) recovery of a substrate coated, at least in part, with a coating, the pickling agent being a halogenated compound and the suspension having from 10% to 60% of the pickling agent, with respect to the total weight of the powder.

Abstract: A method for depositing an electrically conductive metal onto at least one portion of the inner surface (3) of an internal cavity (2) of a waveguide (1) includes: preparing a suspension containing at least one liquid and at least one precursor of the electrically conductive metal in suspension in said at least one liquid; coating at least one portion of the inner surface (3) of the internal cavity (2) of the waveguide (1) with the suspension, and heat-treating at least said portion of the inner surface (3) of the internal cavity (2) of the waveguide (1) coated with the suspension. A method for manufacturing a metallized waveguide can implement this deposition method.

Abstract: A method for depositing an electrically conductive metal onto at least one portion of the inner surface (3) of an internal cavity (2) of a waveguide (1) includes: preparing a suspension containing at least one liquid and at least one precursor of the electrically conductive metal in suspension in said at least one liquid; coating at least one portion of the inner surface (3) of the internal cavity (2) of the waveguide (1) with the suspension, and heat-treating at least said portion of the inner surface (3) of the internal cavity (2) of the waveguide (1) coated with the suspension. A method for manufacturing a metallized waveguide can implement this deposition method.

Abstract: A turbine engine part includes at least a substrate, and present on the substrate, a ceramic coating for protection against calcium and magnesium aluminosilicates, the ceramic coating including Al2O3 at a molar content lying in the range 33% to 49%, Y3Al5O12 at a molar content lying in the range 21% to 53%, and yttria-stabilized zirconia at a molar content lying in the range 13% to 31%.

Abstract: A turbine engine part includes at least a substrate, and present on the substrate, a ceramic coating for protection against calcium and magnesium aluminosilicates, the ceramic coating including Al2O3 at a molar content lying in the range 33% to 49%, Y3Al5O12 at a molar content lying in the range 21% to 53%, and yttria-stabilized zirconia at a molar content lying in the range 13% to 31%.