Provided are certain silicon precursor compounds which are useful in the formation of silicon-containing films in the manufacture of semiconductor devices, and more specifically to compositions and methods for forming such silicon-containing films, such as films comprising silicon, silicon nitride, silicon oxynitride, silicon dioxide, a carbon-doped silicon nitride, or a carbon-doped silicon oxynitride film.

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.

Articles and methods related to superhydrophobic surfaces are generally described. In some embodiments, an article may include a substrate and a plurality of nanoscale and/or microscale features may be formed on a surface of the substrate by irradiating the substrate. The plurality of nanoscale and/or microscale features may comprise oxides and/or hydroxides on the surface of the substrate. A fluorinated coating may be associated with at least a portion of the surface of the substrate, including, for example, the nanoscale and/or microscale features may be coated with the fluorinated coating.

Disclosed is a method of attaching heterogeneous materials, for example, a metal plate and a polymer resin, by greatly improving the adhesive strength between the heterogeneous materials, for example, the metal plate and the polymer resin. Particularly, the method may include pretreating the surface of a metal plate with an aromatic compound containing a pyrogallol group to bind the pyrogallol group to the surface of the metal plate and coating the pyrogallol-group-bound metal plate with a polymer resin, thereby greatly improving the adhesive strength between the metal plate and the polymer resin through a simple process.

A method of making pigments, such as special effect pigment includes forming a first slurry including a substrate, a polymer precursor, and a radical initiator; forming a solution including an emulsifier; and combining the first slurry and the solution so that the substrate is encapsulated by a first coating. Special effect pigments formed by the method are also disclosed.

A method of producing a structure containing a phase-separated structure, the method including: applying a brush composition to a substrate to form a brush layer; forming a layer containing a block copolymer on the brush layer; and phase-separating the layer containing the block copolymer, the brush composition including a resin component (A), the resin component (A) containing a polymeric compound (A1) in which a first polymer block and a second polymer block are bonded to each other through a linking group containing a substrate adhering group.

A modification method of a surface of a substrate includes: applying a composition on a surface of a metal substrate, and heating a coating film formed by the applying, wherein the composition contains: a polymer having a first structural unit that includes an aromatic ring, and a second structural unit that includes an ethylenic double bond; a thermal acid generating agent; and a solvent, wherein the polymer has a functional group capable of bonding to a metal atom in the metal substrate.

A method for coating heat transfer components to impart superhydrophobicity comprises conveying one or more heat transfer components to a cleaning station, where the one or more heat transfer components are cleaned with an organic solvent. After the cleaning, the one or more heat transfer components are conveyed to a nanostructuring station and immersed in hot water for surface oxidation and roughening. After the immersion in hot water, the one or more heat transfer components are conveyed to a functionalization station and exposed to a heated precursor vapor comprising a hydrophobic species. During the exposure, the hydrophobic species is deposited on roughened surfaces of the one or more heat transfer components, thereby forming a superhydrophobic coating. Prior to being conveyed to the cleaning station, the one or more heat transfer components may be attached to an automated conveyor system positioned to traverse the cleaning, nanostructuring, and functionalization stations.

Examples relating to coating an alloy substrate are described. For example, techniques for treating a surface of the alloy substrate for coating the alloy substrate with an exterior coat include providing an alloy substrate of a die-casted metal alloy, the alloy substrate having a surface with multiple pores, and applying an electrically conductive layer on the surface of the alloy substrate. The electrically conductive surface is composed of metal particles and electrically conductive polymers, and the electrically conductive layer is applied such that the metal particles fill the multiple pores on the surface of the alloy substrate. Thereafter, an oxidation process is performed on the surface to form an oxidation layer over the surface. The oxidation layer provides for adhesion of the surface with the exterior coat.

A brush composition usable for phase-separation of a layer containing a block copolymer formed on a substrate, the brush composition including a resin component (A), the resin component (A) containing a polymeric compound (A1) in which a first polymer block and a second polymer block are bonded to each other through a linking group containing a substrate adhering group.