A hydrocarbon fluid containment article having a wall with a surface that is wetted by hydrocarbon fluid. The surface includes an anti-coking coating. The anti-coking coating includes a copper salt, a silver salt, or a combination thereof. A gas turbine engine component including a wall having a first surface and an anti-coking coating on the first surface of the wall that is wetted by hydrocarbon fluid. The anti-coking coating including a copper salt, a silver salt, or a combination thereof that prevents the formation of gum or coke on a surface thereon. Methods for reducing the deposition of thermal decomposition products on a wall of an article are also provided.

The present disclosure provides a light-absorbing heat-shielding film that achieves usually incompatible characteristics of absorbing visible light and near-infrared rays and emitting less far-infrared rays. The present disclosure provides a light-absorbing heat-shielding film including: a metal layer including fine irregularities, wherein an average height of the fine irregularities is 100 nm or more and 1000 nm or less.

A hydrocarbon fluid containment article having a wall with a surface that is wetted by hydrocarbon fluid. The surface includes an anti-coking coating. The anti-coking coating includes a copper salt, a silver salt, or a combination thereof. A gas turbine engine component including a wall having a first surface and an anti-coking coating on the first surface of the wall that is wetted by hydrocarbon fluid. The anti-coking coating including a copper salt, a silver salt, or a combination thereof that prevents the formation of gum or coke on a surface thereon. Methods for reducing the deposition of thermal decomposition products on a wall of an article are also provided.

A hydrocarbon fluid containment article having a wall with a surface that is wetted by hydrocarbon fluid. The surface includes an anti-coking coating. The anti-coking coating includes a copper salt, a silver salt, or a combination thereof. A gas turbine engine component including a wall having a first surface and an anti-coking coating on the first surface of the wall that is wetted by hydrocarbon fluid. The anti-coking coating including a copper salt, a silver salt, or a combination thereof that prevents the formation of gum or coke on a surface thereon. Methods for reducing the deposition of thermal decomposition products on a wall of an article are also provided.

Provided are a composition for metal oxide film formation, a method for producing the composition for metal oxide film formation, and a method for producing a metal oxide film using the composition for metal oxide film formation, which allow for a decrease in amount of residual metals after washing.

The composition for metal oxide film formation according to an embodiment of the invention contains metal oxide nanoparticles, a capping agent, a polycarboxylic acid compound, and a solvent, wherein the metal oxide nanoparticles have a size of 5 nm or less; the capping agent includes at least one selected from the group consisting of an alkoxysilane, a phenol, an alcohol, a carboxylic acid, and a carboxylic acid halide; at least one of molecular chain(s) linking any two carboxy groups in the polycarboxylic acid compound has a side chain optionally having a heteroatom, and the side chain has an alkyl group; and in the solid content of the composition for metal oxide film formation, the ratio of the mass of inorganic matter is 25% by mass or more.

Provided are a composition for metal oxide film formation, a method for producing the composition for metal oxide film formation, and a method for producing a metal oxide film using the composition for metal oxide film formation, which allow for a decrease in amount of residual metals after washing.

The composition for metal oxide film formation according to an embodiment of the invention contains metal oxide nanoparticles, a capping agent, a polycarboxylic acid compound, and a solvent, wherein the metal oxide nanoparticles have a size of 5 nm or less; the capping agent includes at least one selected from the group consisting of an alkoxysilane, a phenol, an alcohol, a carboxylic acid, and a carboxylic acid halide; at least one of molecular chain(s) linking any two carboxy groups in the polycarboxylic acid compound has a side chain optionally having a heteroatom, and the side chain has an alkyl group; and in the solid content of the composition for metal oxide film formation, the ratio of the mass of inorganic matter is 25% by mass or more.

In the present invention, after a primary coating film is formed by boehmite treatment of the surface of a core particle in a solution comprising Al ions, a secondary coating film is formed by cooling the solution to the supersaturation temperature of the Al ions to cause deposition of a hydroxide of aluminum on the surface of the primary coating film, and an Al oxide film is formed on the surface of the core particle by heat treating the secondary coating film in an oxidizing atmosphere. Consequently, the shell is thickened by the amount of secondary coating film formed, so that the cyclic strength of the capsule can be secured and the composition change of the PCM in the production process is remarkably suppressed.

In the present invention, after a primary coating film is formed by boehmite treatment of the surface of a core particle in a solution comprising Al ions, a secondary coating film is formed by cooling the solution to the supersaturation temperature of the Al ions to cause deposition of a hydroxide of aluminum on the surface of the primary coating film, and an Al oxide film is formed on the surface of the core particle by heat treating the secondary coating film in an oxidizing atmosphere. Consequently, the shell is thickened by the amount of secondary coating film formed, so that the cyclic strength of the capsule can be secured and the composition change of the PCM in the production process is remarkably suppressed.

Provided are a member that reduces a change in refractive index at high humidity (60% RH or more and less than 90% RH) and a method of manufacturing the member. The member comprises a base material and a porous layer formed on at least any one of surfaces of the base material, wherein the porous layer has dN.sub.2 of 5 nm or more and 20 nm or less and dH.sub.2O of 25 nm or more and 75 nm or less, and has a contact angle with respect to water of less than 60, in which dN.sub.2 is defined as a diameter of a pore at a time when a differential pore volume becomes maximum in the differential pore distribution in nitrogen adsorption and dH.sub.2O is defined as a diameter of a pore at a time when a differential pore volume becomes maximum in the differential pore distribution in water vapor adsorption.

This vehicle mechanical component includes a mechanical component body, a heat insulating layer formed on the mechanical component body, and a protective layer formed on the heat insulating layer and including an inorganic compound that includes an alkoxide and scale-like inorganic solid particles dispersed in the inorganic compound.