A ceramic coating system using an atmospheric pressure plasma generator is provided, which includes a vacuum chamber configured to maintain a vacuum therein, a support disposed inside the vacuum chamber and fixedly supporting a substrate, a plasma generator that generates active species through plasma discharge and includes a nozzle part wherein at least a portion of the nozzle part is disposed to face the substrate inside the vacuum chamber, and a particle providing apparatus that transfers ceramic particles to one side of the nozzle part.

A gas turbine engine article includes a substrate and an environmental barrier coating disposed on the substrate. The environmental barrier coating includes oxygen-scavenging particles. Each oxygen-scavenging particle includes a silicon-containing core particle encased in an oxygen barrier shell.

A gas turbine engine article includes a substrate and an environmental barrier coating disposed on the substrate. The environmental barrier coating includes oxygen-scavenging particles. Each oxygen-scavenging particle includes a silicon-containing core particle encased in an oxygen barrier shell.

Processing a flexible substrate of a matrix-shaped or lattice-shaped construction material. A first layer thereof is transported in a first transport direction, and a second layer thereof is transported in parallel with and closely spaced apart from the first layer in an opposite, second transport direction through a free region in the evacuable process area. A usable flux of a processing instrument penetrates the first and the second layer of the flexible substrate simultaneously while transported through the free region in an opposite direction. Also, a vacuum processing system including two roller groups, each group including smaller and larger rollers deflecting the flexible substrate. The free region including a processing instrument arranged between the roller groups through which the flexible substrate is transported in an opposite direction and without directional change. At least two closely spaced apart layers of the flexible substrate are transported in opposite directions.

Processing a flexible substrate of a matrix-shaped or lattice-shaped construction material. A first layer thereof is transported in a first transport direction, and a second layer thereof is transported in parallel with and closely spaced apart from the first layer in an opposite, second transport direction through a free region in the evacuable process area. A usable flux of a processing instrument penetrates the first and the second layer of the flexible substrate simultaneously while transported through the free region in an opposite direction. Also, a vacuum processing system including two roller groups, each group including smaller and larger rollers deflecting the flexible substrate. The free region including a processing instrument arranged between the roller groups through which the flexible substrate is transported in an opposite direction and without directional change. At least two closely spaced apart layers of the flexible substrate are transported in opposite directions.

A method of assessing the quality of a bond coat for bonding a ceramic coating to a metallic substrate comprises determining a thresholded summit area for the bond coat.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

An embodiment relates to an ultrasonic additive manufacturing process, comprising joining a foil comprising a bulk metallic glass to a substrate; and forming a cladded composite comprising the foil and the substrate; wherein a thickness of the cladded composite is greater than a critical casting thickness of the bulk metallic glass, wherein the cladded composite comprises a cladding layer of the bulk metallic glass on the substrate and the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

A pipe according to the present disclosure comprises: a hollow tube body in which fluids of different temperatures pass through the inside and outside thereof; and a coating layer which is provided on an external surface of the hollow tube body, and which has an alloy comprising an amorphous phase, wherein the alloy comprises Fe, and comprises at least one or more first component selected from the group consisting of Cr, Mo and Co, and at least one or more second component selected from the group consisting of B, C, Si and Nb.

A low pressure plasma spraying method includes turning working gas into plasma by direct-current arc to generate a plasma jet while setting a plasma power source output to 2 to 10 kW in a pressure reducing vessel and feeding raw material powder having an average particle size of 1 to 10 μm into the plasma jet from feeding ports of a thermal spraying gun to form a thermal sprayed coating, which can suppress transformation of the raw material powder and form a dense coating.