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.

Abstract: A part coated in a protective coating forms a thermal barrier and includes a ceramic first layer. The protective coating further includes a second layer present on the first layer and including a majority by weight of a first feldspar mineral having a melting temperature higher than or equal to 1010° C. and presenting a thickness greater than or equal to 10 ?m.

Abstract: A method of marking the surface of a mechanical part with a predefined graphic having a holographic type effect, the method including using a laser source to apply a succession of laser pulses to the outside surface of a part for marking, with different masks being interposed between the laser source and the outside surface of the part, each mask having a particular pattern, each laser pulse having a power density of at least 20 MW/cm2 and a duration that is less than or equal to 100 ns.

Abstract: A method for assembling two blades of a turbomachine nozzle, includes positioning a first surface of a first blade and a second surface of a second blade facing one another, the first and second surfaces being spaced apart from one another by an assembly clearance, and vapor phase aluminizing the first and second surfaces so as to fill the assembly clearance.

Abstract: A part coated in a protective coating forms a thermal barrier and includes a ceramic first layer. The protective coating further includes a second layer present on the first layer and including a majority by weight of a first feldspar mineral having a melting temperature higher than or equal to 1010° C. and presenting a thickness greater than or equal to 10 ?m.

Abstract: A method of marking the surface of a mechanical part with a predefined graphic having a holographic type effect, the method including using a laser source to apply a succession of laser pulses to the outside surface of a part for marking, with different masks being interposed between the laser source and the outside surface of the part, each mask having a particular pattern, each laser pulse having a power density of at least 20 MW/cm2 and a duration that is less than or equal to 100 ns.

Abstract: A method of fabricating a part by selectively melting powder, the method comprising the following steps: depositing a first layer (12) of a first powder (2) having a first element as its main element; depositing, on the first layer, a second layer (15) of a second powder (22) having a second element as its main element, which second element is different from the first element; and moving a first energy beam (11), e.g. a laser beam or an electron beam, over the second layer (15), the energy delivered by the first beam serving to initiate an exothermic reaction between the first element and the second element, the energy given off by the exothermic reaction acting to locally melt together the first and second layers (12, 15).

Abstract: A YSZ-type ceramic layer is deposited on a tie sublayer by thermal spraying using a plasma arc torch, said tie sublayer being itself deposited on the part to be protected. A sintering post treatment is carried out by means of a sweep of the ceramic layer by the beam of the plasma arc torch, the temperature at the point of impact of the beam at the surface of the ceramic layer (C) being, during this sweep, between 1300° C. and 1700° C.

Abstract: A method for assembling two blades of a turbomachine nozzle, includes positioning a first surface of a first blade and a second surface of a second blade facing one another, the first and second surfaces being spaced apart from one another by an assembly clearance, and vapour phase aluminising the first and second surfaces so as to fill the assembly clearance.