An article for high temperature service is presented. The article includes a substrate and a thermal barrier coating disposed on the substrate. The thermal barrier coating includes a plurality of aluminum-based particles dispersed in an inorganic binder, wherein the aluminum-based particles are substantially spaced apart from each other via the inorganic binder such that the thermal barrier coating is substantially electrically and thermally insulating. Method of making the article is also presented.

A process for manufacturing an abradable layer, includes compressing a powder composition including at least micrometric ceramic particles having a number-average form factor greater than or equal to 3, a mass content of said micrometric ceramic particles in the powder composition being greater than or equal to 85%, the form factor of a particle being defined as the ratio [largest dimension of the particle]/[largest cross-sectional dimension of the particle], and sintering the powder composition thus compressed to obtain the abradable layer, wherein a temperature imposed during sintering, the sintering time and the compression pressure applied are selected so as to obtain a volume porosity rate of the abradable layer greater than or equal to 20%.

The present invention relates to a method for manufacturing a joint structure of dissimilar materials. The method includes forming a low-temperature thermal spray coating on at least a part of a surface of an aluminum or aluminum alloy material by low-temperature thermal spraying a metal powder of at least one metal selected from the group consisting of ferritic stainless steel, austenitic stainless steel, and ferritic and austenitic two-phase stainless steel, overlapping the aluminum or aluminum alloy material and a steel material such that the low-temperature thermal spray coating and the steel material face each other, and joining the low-temperature thermal spray coating and the steel material by a laser welding from a steel material side.

A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.

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).

A pipe structure includes a pipe disposed in a state of contact with the air, a fluid with a temperature of at least 100° C. flowing inside the pipe; and a coating material containing nickel oxide and coated onto an outer periphery portion of the pipe.

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 system may include an energy delivery device and a computing device. The computing device may be configured to: control the energy delivery device to deliver energy to an abrasive coating, wherein the abrasive coating comprises a metal matrix and abrasive particles at least partially encapsulated by the metal matrix; and control the energy delivery device to scan the energy across a surface of the abrasive coating and form a series of softened or melted portions of the metal matrix.

A component for an electrochemical device, the component including: a metallic substrate; and a plurality of particles bonded to a surface of the substrate by a metallurgical bond, wherein the particles include a metal, carbon, or a combination thereof, wherein the metallurgical bond is between the particles and the substrate, wherein a total projected area of the metallurgical bond is less than 90% of a total projected area of the substrate, and wherein the metallurgical bond has a composition which is a combination of a composition of the metallic substrate and a composition of the particle, a reaction product of the metallic substrate and the particle, or a combination thereof.

A diffusion barrier coating on a nickel-based alloy substrate comprising the diffusion barrier being coupled to the substrate between the substrate and a composite material opposite the substrate, wherein the diffusion barrier comprises a nickel cobalt and chromium-aluminum-yttria powder material.