An embodiment relates to a composition comprising an amorphous alloy having a low coefficient of friction (COF) of 0.15 or less, wherein the amorphous alloy is substantially free of phosphor (P) and substantially free of boron (B). An embodiment relates to a method comprising solidifying a molten layer of an amorphous feedstock on a preexisting layer by controlling a heating source and a cooling rate so as to avoid formation of crystals in the molten layer and not affect a crystalline structure of the preexisting layer, and forming a specimen; wherein, the at least a portion specimen has the low COF. Another embodiment relates to a system comprising a drill string, wherein the drill string comprises a drilling bit and a drill pipe connected thereto, wherein at least a portion of the drill pipe comprises a coating having the low COF.

The present disclosure relates to a method of manufacturing a liquid metal-based electrode using a light sintering process. The method of manufacturing a liquid metal-based electrode includes a step of preparing a metal nanoparticle solution, a step of adding metal micron particles and a surface modifier to the metal nanoparticle solution to prepare a mixed solution, a step of adding a liquid metal to the mixed solution to prepare a composite ink containing the liquid metal having a surface oxide film formed thereon, a step of forming an electrode by applying the composite ink onto a substrate, and a step of irradiating the electrode with light to destroy the surface oxide film.

The present disclosure relates to a method of manufacturing a liquid metal-based electrode using a light sintering process. The method of manufacturing a liquid metal-based electrode includes a step of preparing a metal nanoparticle solution, a step of adding metal micron particles and a surface modifier to the metal nanoparticle solution to prepare a mixed solution, a step of adding a liquid metal to the mixed solution to prepare a composite ink containing the liquid metal having a surface oxide film formed thereon, a step of forming an electrode by applying the composite ink onto a substrate, and a step of irradiating the electrode with light to destroy the surface oxide film.

Various embodiments include a method for producing a least one conductive track comprising: forming a surface with a thermoplastic; and depositing conductive track material on the surface by thermal spraying.

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.

Embodiments relate to a method of manufacturing pinned nano-structures with tailored gradient properties. First and second compositions are provided, Each of the compositions includes a nano-structural material, a plurality of grain growth inhibitor nano-particles, and at least one of a tailoring solute and a plurality of tailoring nano-particles. Deposition layers are formed proximal to a substrate with each of the compositions through electrospray techniques.

Embodiments relate to a method of manufacturing pinned nano-structures with tailored gradient properties. First and second compositions are provided, Each of the compositions includes a nano-structural material, a plurality of grain growth inhibitor nano-particles, and at least one of a tailoring solute and a plurality of tailoring nano-particles. Deposition layers are formed proximal to a substrate with each of the compositions through electrospray techniques.

The present application relates to a method for preparing a target material, the method including: spraying a transition layer on the surface of a substrate in an atmospheric atmosphere to obtain a substrate containing the transition layer; spraying a target material layer on the surface of the substrate containing the transition layer in an atmospheric atmosphere. The present application also discloses a method for preparing a tubular target material and a target material.

A piercer plug with increased wear resistance is provided. A piercer plug includes: a plug body; and a sprayed coating formed on the surface of the plug body. The sprayed coating contains an iron-based alloy and oxides thereof. The chromium concentration determined by analyzing the sprayed coating with X-ray fluorescence analysis is 3 to 20 mass %.

An embodiment relates to a composition comprising an amorphous alloy having a low coefficient of friction (COF) of 0.15 or less, wherein the amorphous alloy is substantially free of phosphor (P) and substantially free of boron (B). An embodiment relates to a method comprising solidifying a molten layer of an amorphous feedstock on a preexisting layer by controlling a heating source and a cooling rate so as to avoid formation of crystals in the molten layer and not affect a crystalline structure of the preexisting layer, and forming a specimen; wherein, the at least a portion specimen has the low COF. Another embodiment relates to a system comprising a drill string, wherein the drill string comprises a drilling bit and a drill pipe connected thereto, wherein at least a portion of the drill pipe comprises a coating having the low COF.