A corrosion resistant coating including a matrix, corrosion resistant particles dispersed throughout the matrix, and a glass-forming additive is disclosed. The glass-forming additive and one or more materials in the matrix form a glassy-phase when cured. Coated gas turbine engine components and methods for coating components are also disclosed.

The present disclosure provides methods for forming sol-gels, sol-gel films and substrates, such as vehicle components, having a sol-gel film disposed thereon. At least one method of forming a sol-gel includes mixing a metal alkoxide, an acid stabilizer, and an organic solvent to form a first mixture having about 10 wt % or less water content based on the total weight of the first mixture. The method includes mixing an organosilane with the first mixture to form a second mixture having about 10 wt % or less water content based on the total weight of the second mixture.

The present technology relates to an electrode for electrolysis which has a coating layer containing an ytterbium oxide, wherein the electrode for electrolysis of the present technology is characterized by exhibiting excellent durability and improved overvoltage. Further, the present technology relates to a method of preparing an electrode for electrolysis which includes: applying a coating composition on at least one surface of a metal base, and coating by drying and heat-treating the metal base on which the coating composition has been applied, wherein the coating composition includes a ruthenium precursor and an ytterbium precursor.

A method of forming an article includes producing a base powder including a plurality of base particles. Each base particle includes an external surface and a first material. The method further includes removing one or more oxides from the external surface of each base particle to form a cleaned powder including a plurality of cleaned particles. Each cleaned particle includes a cleaned external surface made of the first material. The method further includes coating the cleaned external surface of each cleaned particle with a second material having a greater oxidation resistance than the first material to form a coated powder including a plurality of coated particles. Each coated particle includes an external layer including the second material that fully covers the cleaned external surface made of the first material. The method further includes forming the article using the coated powder.

A sol composition for producing dielectric layers on a metallic substrate including 10 to 30%, by weight of the sol composition, of a precursor including a trialkoxysilane, 10 to 40%, by weight of the sol composition, of titanium dioxide particles whose median size is below 500 nm, 4.5 to 36%, by weight of the sol composition, of silica particles whose particle size distribution D90 is below 100 nm, 5 to 15%, by weight of the sol composition, of a solvent capable of making the precursor miscible in water, 0.1 to 2%, by weight of the sol composition, of an acidic catalyst, the remainder being water.

A turbine engine part coated in at least a first ceramic layer forming a thermal barrier and including a ceramic material with first ceramic fibers dispersed in the first layer. The first layer may have a chemical composition gradient between a material for forming a thermal barrier and a material for providing protection against calcium and magnesium aluminosilicates, which is present at a greater content in an outer zone of the first layer, and/or the first layer may be porous and may present a porosity gradient such that an outer portion of the first layer presents lower porosity.

A coating of niobium oxide, zirconium titanate, or nickel titanate is formed on at least a part of a surface of a jet pump member constituting a jet pump serving as a reactor internal structure of a boiling water reactor. Further, a solution containing, e.g., a niobium compound is applied to at least a part of the surface of the jet pump member constituting the jet pump, and the jet pump member coated with the solution is heat-treated to form a coating of, e.g., niobium oxide. With this configuration, the jet pump member constituting the jet pump of the boiling water reactor is provided such that deposition of crud can be sufficiently suppressed on the jet pump member.

A coating composition and a method for coating metallic substrates, such as aircraft components exposed to elevated temperatures and/or oxidative conditions. The coating composition includes an aqueous mixture having about 2 vol % to about 50 vol % organosilane, about 0.3 to about 25 vol % metal alkoxide, and about 0.1 to about 30 vol % organic complexing agent. The coating composition may be deposited on a metallic substrate and cured to form a sol-gel coating on the surface of the substrate that is adherent to the substrate, and oxidation and discoloration resistant.

In accordance with one aspect of the present invention, a heating device is presented. The heating device includes a pyrocatalytic, non-stick coating disposed on at least one surface. The pyrocatalytic non-stick coating includes (i) a binder derived from a silane, a polysiloxane, a polysilazane, or combinations thereof; and (ii) a catalyst dispersed within the binder, wherein the catalyst comprises a pervoskite crystalline material, a pyrochlore crystalline material, a spinel crystalline material, an ilmenite crystalline material, or combinations hereof.

The invention provides a process for forming crack-free dielectric films on a substrate. The process comprises the application of a dielectric precursor layer of a thickness from about 0.3 μm to about 1.0 μm to a substrate. The deposition is followed by low temperature heat pretreatment, prepyrolysis, pyrolysis and crystallization step for each layer. The deposition, heat pretreatment, prepyrolysis, pyrolysis and crystallization are repeated until the dielectric film forms an overall thickness of from about 1.5 μm to about 20.0 μm and providing a final crystallization treatment to form a thick dielectric film. The process provides a thick crack-free dielectric film on a substrate, the dielectric forming a dense thick crack-free dielectric having an overall dielectric thickness of from about 1.5 μm to about 20.0 μm.