Various embodiments include a cold gas spraying system for generating an adjustable particle jet. The system may include: a nozzle from which the particle jet emerges; a supply device for supplying a particle stream to the nozzle; and one or more actuators operable to reduce the particle stream and/or the particle jet during operation. At least one of the actuators comprises a valve arranged between the supply device and the nozzle.

A component of a plasma processing chamber having a coating on at least one surface that comprises yttrium aluminum. The coating is an aerosol deposited coating from a powder mixture of an yttrium oxide powder and an aluminum-containing powder and having an yttrium to aluminum ratio of 4:1 to 1:4 by molar number. The coating can be annealed to form a porous ternary oxide.

A component of a plasma processing chamber having a coating on at least one surface that comprises yttrium aluminum. The coating is an aerosol deposited coating from a powder mixture of an yttrium oxide powder and an aluminum-containing powder and having an yttrium to aluminum ratio of 4:1 to 1:4 by molar number. The coating can be annealed to form a porous ternary oxide.

The present invention relates generally to laser welding in the manufacture of sheet metal components, such as for example automobile components. More particularly, the present invention relates to a process and a system for forming a localized anti-corrosion surface layer along a laser welded joint (weld bead), subsequent to the laser welding together of sheet metal plates having an anti-corrosion surface layer pre-coat.

The disclosure includes manufacturing a semimanufactured cylinder head (3) having a shielding curtain portion (16g) and spraying metal powder (P) onto an annular valve seat portion (16f) using a cold spray method to form a valve seat film (16b). The shielding curtain portion (16g) projects in an annular shape from an annular edge portion of an opening portion (16a) of an intake port (16) or an opening portion (17a) of an exhaust port (17) toward the center (C) of the port. The annular valve seat portion (16f) is located on an outer side of the port than the shielding curtain portion (16g).

Grain-oriented electrical steel sheet excellent in magnetic properties and excellent in adhesion of a primary coating to a base steel sheet, an annealing separator utilized for manufacture of grain-oriented electrical steel sheet, and a method for manufacturing grain-oriented electrical steel sheet are proposed. The grain-oriented electrical steel sheet is provided with a base metal steel sheet containing comprising a predetermined chemical composition and a primary coating formed on a surface of the base steel sheet and comprising Mg.sub.2SiO.sub.4 as a main constituent. The primary coating satisfies the conditions of (1) the number density D3 of the Al concentrated region: 0.020 to 0.180/μm.sup.2, (2) (total area S5 of regions which is anchoring oxide layer regions and is also Al concentrated regions)/(total area S3 of Al concentrated regions)≥33%, (3) distance H5 of mean value of length in thickness direction of regions which is anchoring oxide layer regions and is also Al concentrated regions minus H0: 0.4 to 4.0 μm, (4) (total area S1 of anchoring oxide layer regions)/(observed area S0)≥15%.

Disclosed is a method for manufacturing free-standing cladding tubes with multi-layer structures. According to the method, a cylindrical mandrel substrate defining a hollow cylindrical inner space is provided. A first cold spray powder metal is selected. The cylindrical mandrel substrate is rotated and the first cold spray powder metal is applied to an outer surface of the cylindrical mandrel substrate to form a first layer. The cylindrical mandrel substrate is removed.

A coated part includes a metallic substrate, a thermal barrier comprising a ceramic material and covering the metallic substrate, wherein the coated part further includes a protective coating covering the thermal barrier, the protective coating including, in a first region, a first MAX phase, denoted PZ2, of formula (Zr.sub.xTi.sub.1-x,).sub.2AlC or a first MAX phase, denoted PC2, of formula (Cr.sub.xTi.sub.1-x,).sub.2AlC with x non-zero and less than or equal to 1 in the MAX phases PZ2 and PC2, and the protective coating includes, in a second region covering the first region, a second MAX phase of formula Ti.sub.2AlC.

A method of applying a long lasting wear-resistant coating on a Yankee drying cylinder is described, whereby the method includes: providing a Yankee drying cylinder having a cylindrical shell with a circular cross-section and an outer surface; and performing a thermal spray operation to form a wear-resistant coating layer on the outer surface of the Yankee drying cylinder during which thermal spray operation coating feedstock is fed to at least one spray device, heated to become plastic and/or semi-molten and/or molten and sprayed onto the outer surface of the Yankee drying cylinder to form the wear-resistant coating layer. The coating feedstock for the thermal spray operation consists of a specific set of elements, by percent weight, with the remainder being iron and impurities. Coatings and Yankee cylinders with such coatings are also disclosed.

A method of applying a long lasting wear-resistant coating on a Yankee drying cylinder (1), the method comprises: the step of providing a Yankee drying cylinder (1) having a cylindrical shell (2) with a circular cross-section and an outer surface (3); the step of performing a thermal spray operation to form a wear-resistant coating layer (4) on the outer surface of the Yankee drying cylinder (1) during which thermal spray operation coating feedstock (6) is fed to at least one spray device (5), heated to become plastic and/or semi-molten and/or molten and sprayed onto the outer surface (3) of the Yankee drying cylinder (1) to form the wear-resistant coating layer (4), the coating feedstock (6) for the thermal spray operation consisting of: 1.5 to 2.5 weight percent Al 0.0 to 0.2 weight percent Ti, 9.5 to 10.5 weight percent Si, 0.0 to 0.2 weight percent B, 12.5 to 14.2 weight percent Mo, 0.0 to 0.2 weight percent V, 0.0 to 0.2 weight percent C, 0.000 to 0.020 weight percent Cr, 4.5 to 6.0 weight percent Mn, 0.0 to 0.2 weight percent Mg, 0.0 to 0.2 weight percent Ni, 0.0 to 0.2 weight percent Nb, the remainder being iron and impurities.

Coatings and Yankee cylinders with such coatings are also disclosed.