The invention relates to a method for manufacturing an epilame mechanical part (2) comprising a substrate (4) made of a first material, the method comprising at least: a step (10) of depositing an epilame product (6) consisting of a second material on the substrate (4), said deposition being carried out in the form of a projection onto the substrate (4) of at least one collimated or localised beam (12; 12A, 12B) of material containing the epilame product (6); and a step (11) of treating the second material to ensure the cohesion of the components on the substrate (4).

A counter-rotating roller system for coating electrode materials includes a roll-to-roll apparatus including a dispensing roller that selectively dispenses a conductive substrate from a substrate roll along a first direction towards a receiving roller. A counter-rotating roller module including a counter-rotating roller is stationarily positioned at a predetermined height over the conductive substrate. The direction of the tangential velocity of the counter-rotating roller at an interface between the counter-rotating roller and the conductive substrate is 180 degrees opposite the first direction of travel of the conductive substrate. The system further includes a continuous powder application module positioned on a feed side of the counter-rotating roller to continuously deposit a volume of a dry powder mixture on the conductive substrate prior to contact with the counter-rotating roller. A contact roller scraper contacting the counter-rotating roller removes powder particles from an outer surface of the counter-rotating roller.

A film forming apparatus, a substrate processing apparatus, and a device manufacturing method are provided, which improve the film thickness uniformity of a thin film that is formed on a substrate by spraying a thin film material. The film forming apparatus which forms a thin film on a substrate is provided with a nozzle that sprays a thin film material and an exhaust unit that discharges a gas. An exhaust port of the exhaust unit is arranged on a side that is opposite to the direction in which the gravity acts with respect to the substrate. The substrate processing apparatus performs a predetermined process on the substrate using the film forming apparatus. The device manufacturing method manufactures a device using the film forming apparatus.

A method compacts an anti-corrosive paint having metal particles of a mechanical part such as a turbine engine part. The mechanical part extends along a longitudinal axis X and has a radially outer surface covered with a first layer of anti-corrosive paint. The method includes at least one step of generating a laser beam on the first layer of anti-corrosive paint to bring the metal particles into contact and to render the anti-corrosive paint electrically conductive.

A welding method for manufacturing a heat sink has the following steps in sequence: removing rust from a first workpiece and a second workpiece, degreasing the first workpiece and the second workpiece, increasing surface roughness of the first workpiece and the second workpiece, performing a copper supersonic cold spray step to the first workpiece and the second workpiece, and then combining the first workpiece and the second workpiece via welding. With the copper supersonic cold spray step and the surface treatment steps before the copper supersonic cold spray step (i.e. rust removal and degreasing, and surface roughness increasing), the solder can be attached to the workpiece tightly in the combining via welding. Thus, the welded workpieces are combined firmly and not be separated easily. If a heat sink component is made through welding workpieces in the welding method, the heat sink component has higher strength and cannot be destroyed easily.

Engine structures and methods of forming the engine structures are provided herein. In an embodiment, an engine structure includes a silicon-based ceramic-containing substrate having an in-tolerance surface and one or more barrier layers disposed on the in-tolerance surface of the ceramic-containing substrate. The ceramic-containing substrate includes a bulk zone and a gradient zone. The bulk zone includes a first bulk material. The gradient zone includes the first bulk material and a second material that is different from the first bulk material. The gradient zone has a gradient of increasing concentration of the second material from the bulk zone to the in-tolerance surface of the ceramic-containing substrate.

A porous metallic coating is provided. The coating is characterized by a combination of optimized properties that improve coating performance, as measured by heat transfer efficiency. The porous coating has optimal ranges for properties such as porosity, particle size and thickness, and has particular applicability in boiling heat transfer applications as part of an air separations unit. The porous coatings are derived from slurry-based formulations that include a mixture of metallic particles, a binder and a solvent.

A metallic thermal barrier coating for a component includes an insulating layer having a plurality of metallic microspheres applied to a substrate. A second metallic non-permeable layer is bonded to the insulating layer such that the sealing layer seals against the insulating layer. A method for applying a thermal barrier coating to a component includes placing an insulating layer having a plurality of microspheres to a surface of the substrate of the component. A heat treatment is applied to the insulating layer. A second non-permeable layer is bonded to and seals against the insulating layer.

There is provided a piston with a surface modified layer for an internal-combustion engine by a method using a particle to be ejected made of iron-based alloy having a diameter of 20 to 200 m, a thermal conductivity of 30 W/m.Math.k or less at 25 C., and a specific gravity of 7.5 g/cm.sup.3 or greater. The method includes: first treatment for ejecting the particle onto a surface of a piston made of aluminum-silicon alloy or aluminum-copper-based alloy in a space in which oxygen exists at arc height value of 0.07 to 0.13 mm (N), second treatment for ejecting the particle onto the surface of the piston in a space in which oxygen exists at arc height of 0.13 to 0.22 mm (N), and heating treatment applying to the piston for 1.5 hours or longer at 170 to 190 C. in a space in which oxygen exists.

A method of surface coating a metallic object, including removing substantially all of the existing silver sulfide tarnish if present, ultrasonically cleaning the object with immersion in a solvent, uniformly dispersing selected nanoparticles over the surface of the object by sonicating the object in an ultrasonic bath containing the selected nanoparticles. The invention further includes quickly rinsing the object with solvent upon removal from the ultrasonic bath to inhibit formation of large agglomerates, drying the object with a flow of gas, optically inspecting the object for the presence of agglomeration and applying a barrier layer conformal coating and a protective layer conformal coating.