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 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 substrate includes a metal component on a surface. A polymeric layer is deposited on the surface using molecular layer deposition. The polymeric layer includes a metalcone and has a thickness from 1 nm to 20 nm. The polymeric layer is stable at room temperature, but will undergo a structural change at high temperatures. The polymeric layer can be annealed to cause a structural change, which can occur during soldering.

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.

The present invention aims to provide a metal coating method whereby a paint can be applied directly, easily, with high adhesion, and with cost increases suppressed, to the surface of titanium and other metals that have a hard passivated coating on the surface thereof. This method uses paint to coat a metal that has the surface thereof coated in a passivated coating and comprises: an etching step in which the passivated coating is removed using an etching solution and the surface is exposed; a diluent coating step in which, after the etching step, a diluent capable of diluting the paint is coated on the surface that is in a liquid-coated state; and a painting step in which the surface is coated in paint after the diluent coating step.

A process for the corrosion protection of metals such as magnesium, aluminium or titanium, where at least two steps are used, including both plasma electrolytic oxidation and chemical passivation. The combination of these two processing steps enhances the corrosion resistance performance of the surface beyond the capability of either of the steps in isolation, providing a more robust protection system. This process may be used as a corrosion protective coating in its own right, or as a protection-enhancing pre-treatment for top-coats such as powder coat or e-coat. When used without an additional top-coat, the treated parts can still retain electrical continuity with and adjoining metal parts. Advantages include reduced cost and higher productivity than traditional plasma-electrolytic oxidation systems, improved corrosion protection, greater coating robustness and electrical continuity.

A method of attaching heterogeneous materials comprising 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.

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 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.

To provide a fluorinated ether compound capable of forming a water and oil repellent layer with excellent abrasion resistance on a metal surface of a substrate, a composition, and an article provided with a water and oil repellent layer.

The fluorinated ether compound of the present invention is represented by [R.sup.f—(OX).sub.m—O—].sub.j1Y.sup.1—Z.sup.1[-L.sup.1-S—R.sup.11].sub.g11[R.sup.12].sub.g12. R.sup.f is a perfluoroalkyl group, X is a fluoroalkylene group having at least one fluorine atom, m is an integer of at least 2, Y.sup.1 is a single bond or a (j1+1) valent linking group, and Z.sup.1 is a (g11+g12+1) valent linking group, L.sup.1 is a single bond or a divalent linking group, R.sup.11 is a hydrogen atom or a monovalent substituent, R.sup.12 is a hydrogen atom or a monovalent substituent, j1 is an integer of at least 1, g11 is an integer of at least 2, and g12 is an integer of at least 0.