The present invention describes a process for coating conductive component in a plasma reactor and a conductive component coating, wherein the process includes the steps of cleaning, mechanical support deposition, topographic modification by plasma bombardment, chemical support layer deposition and amorphous carbon layer deposition (Diamond-Like Carbon). In one embodiment, the process is in single cycle. The present invention pertains to the fields of Materials Engineering, Physics and Chemistry.

Disclosed is a part including a metal substrate, a non-hydrogenated amorphous ta-C or aC carbon coating that coats the substrate, and an undercoat which is based on chromium (Cr), carbon (C) and silicon (Si) and is disposed between the metal substrate and the amorphous carbon coating and to which the amorphous carbon coating is applied, characterized in that the undercoat included, at its interface with the amorphous carbon coating, a ratio of silicon in atomic percent to chromium in atomic percent (Si/Cr) of 0.35 to 0.60, and a ratio of carbon in atomic percent to silicon in atomic percent (C/Si) of 2.5 to 3.5.

An engine shaft assembly for an engine is provided. The engine shaft assembly includes a shaft and a thermal distribution layer. The thermal distribution layer is provided on the shaft, and is configured to minimize the effect of distortion of the shaft caused by asymmetric cooling on shutdown of the engine.

A manufacturing method of a crystallized metal oxide layer includes: providing a substrate; forming a first insulation layer on the substrate; forming a first metal oxide layer on the first insulation layer; forming a second metal oxide layer on the first insulation layer; forming a second insulation layer on the first metal oxide layer and the second metal oxide layer; forming a silicon layer on the second insulation layer; performing a first laser process on a portion of the silicon layer covering the first metal oxide layer; and performing a second laser process on a portion of the silicon layer covering the second metal oxide layer. An active device and a manufacturing method thereof are also provided.

A diamond-coated tool includes: a substrate; and a diamond layer that coats the substrate, wherein the diamond layer includes a first region that is in contact with the substrate, the first region includes a region S1 surrounded by an interface P between the substrate and the diamond layer and an imaginary plane V1 separated from the interface P by a distance of 2 μm, and the region S1 has crystal grains grown in random directions.

A seal assembly includes a housing at least partially defining a seal opening and at least partially surrounding a rotatable shaft. A carbon seal is located at least partially in the seal opening and includes a sealing surface. The rotatable shaft includes a radially facing surface that has a carbide based coating and a diamond-like carbon coating in engagement with the sealing surface on the carbon seal.

A method of forming an anti-reflection coating on a substrate uses plasma enhanced vapor deposition techniques including saddle field glow discharge by establishing a first plurality of parameters within a partial vacuum environment, forming a plasma from a gaseous feedstock, and depositing a first layer on the substrate having a first thickness and first index of refraction. While maintaining the vacuum environment, a second plurality of parameters is established by varying at least one of the parameters of the first plurality of parameters, and a second layer is deposited on the first layer having a second thickness and a second index of refraction. Feedstocks include hydrogen, methane and higher order hydrocarbons to form an anti-reflection coating of diamond-like carbon.

Provided is a magnesium-containing metal material that includes coatings having excellent corrosion resistance on a surface. Specifically, provided is a magnesium-containing metal material with coating, which is characterized by including: a magnesium hydroxide-containing first coating on a surface of a magnesium-containing metal material composed of magnesium or a magnesium alloy; a hydroxyapatite and/or hydroxyapatite carbonate-containing third coating over the first coating; and a dibasic calcium phosphate-containing second coating between the first coating and the third coating.

[Problem] Provided are a metal material including a passive film on a surface and having corrosion resistance while having a small contact resistance, and a method for producing the metal material. Examples of the metal material include a material that is preferable as a material of a separator and a current collector plate in a fuel cell.

[Solution] Conductive particles 3 are embedded in and caused to adhere to a metal substrate 1 including, on a surface thereof, a passive film 2, in a state where the conductive particles 3 penetrate the passive film 2 in a thickness direction, and the surface of the metal substrate is covered with a coating film having conductivity and corrosion resistance. To cause the conductive particles to adhere in such a manner, the conductive particles 3 may be scattered on the metal substrate 1 on which the passive film 2 is formed, and the conductive particles 3 may be pushed into the surface of the metal substrate 1 by pressing with a roll or the like.

A heat shield component includes a substrate, and a heat shield film arranged on the substrate. The heat shield film includes a first layer arranged on the substrate, including pores, and having a thermal conductivity of 0.3 W/(m.Math.K) or less and a volumetric specific heat of 1200 kJ/(m.sup.3.Math.K) or less, and a second layer arranged on the first layer to provide closed pores between the first layer and the second layer. The heat shield film has a surface roughness on a top surface which is 1.5 μm Ra or less. The heat shield component can achieve high heat-insulating properties and an improved effect of reducing the emission amount of hydrocarbon in an internal combustion engine, for example.