A method for creating an enhanced multipaction resistant diamond-like coating (DLC) coating with lower Secondary Electron Emission (SEE) properties is performed on an initial surface by etching a DLC coating deposited on the surface after deposition and optionally creating interlayers to enhance adhesion mechanical properties between the DLC coating and the initial surface.

An apparatus for fabricating diamond by carbon assembly, which comprises: a) a hydrocarbon radical generator in operable connection with b) a mass flow conduit extending from the hydrocarbon radical generator in a) to an interface and into a primary magnetic accelerator containing one or more electromagnets in operable connection with c) a diamond fabrication reactor comprising a diamond forming deposition substrate. Also disclosed is a method for fabricating diamond by shockwaves using the disclosed apparatus.

A method of coating a non-refractory and/or non-planar substrate (8) with synthetic diamond material using a microwave plasma chemical vapour deposition (CVD) synthesis technique, the method comprising: forming a composite substrate assembly (1) comprising: a support substrate (2) comprising an upper surface; one or more electrically conductive refractory guards (6) disposed over the upper surface of the support substrate and extending to a height h.sub.g above the upper surface of the support substrate; and one or more non-refractory and/or non-planar substrates disposed over the upper surface of the support substrate and extending to a height h.sub.s above the upper surface of the support substrate, wherein the height h.sub.s is less than the height h.sub.g, wherein a difference in height h.sub.g−h.sub.s lies in a range 0.2 mm to 10 mm; placing the composite substrate assembly within a plasma chamber of a microwave plasma CVD reactor; feeding process gases into the plasma chamber including a carbon containing gas and a hydrogen containing gas; feeding microwaves in the plasma chamber to form a microwave plasma at a location over the composite substrate assembly; and growing synthetic diamond material on the one or more non-refractory and/or non-planar substrates.

The present disclosure discloses a method for realizing macroscopic super-lubrication by a matching pair of nano metal-coated steel balls and hydrogen-containing carbon films, which is based on the use of nano metal-coated steel balls and diamond-like films with a hydrogen content of 25-30% as the matching pair. Further, a tribochemical reaction occurs through the catalytic action of nano metal during the friction process to form a nano graphene transfer film with incommensurate contact at the contact interface to achieve macroscopic super-lubrication.

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.

According to an embodiment of the present invention, there is provided a device for forming at least a diamond film on a surface of a substrate, the device comprising: a container configured to hold a raw material liquid and to place the substrate in the raw material liquid; an electrode part comprising a positive electrode and a negative electrode and configured to generate a plasma in the raw material liquid; a raw material gas supply part and a carrier gas supply part, each of the raw material gas supply part and the carrier gas supply part being connected to the electrode part; and a power source configured to apply a voltage to the electrode part, wherein the power source is a direct current power source, and the electrode part further comprises an adjunctive member, and the adjunctive member is attached to an electrode at a plasma generation region of the electrode part.

The present invention relates to methods of forming a film between two surfaces, in which the film includes diamond-like carbon. Also provided herein are uses of such films, such in sliding contacts and in metal coatings.

A moissanite ornament, wherein the surface of the moissanite is coated with a diamond film. A method for coating a diamond film on a surface of a moissanite, including: Step 1: performing ultrasonic grinding pretreatment on the moissanite ornament in the nano-diamond powder suspension; Step 2: taking the moissanite ornament out from the nano-diamond powder suspension, and washing clean; Step 3: pressing the moissanite ornament into a preset shape-preserving sample platform to maintain; Step 4: placing, the moissanite ornament together with the shape-preserving sample platform into a diamond film deposition furnace to perform a plasma treatment; Step 5: introducing methane to conduct in-situ diamond film deposition. The moissanite coated with the diamond film on the surface provided by the present disclosure can greatly improve the surface hardness while maintaining the optical properties of the moissanite, thereby improving the scratch resistance performance of the moissanite.

The present invention relates to a method of diamond nucleation, comprising the following steps: providing a substrate and forming a metal layer on the substrate, wherein the metal layer comprises a catalyst and a transitional metal, the catalyst is copper, nickel or a combination. thereof, and the transitional metal is tungsten, molybdenum or a combination thereof; providing a reaction chamber and disposing the substrate in the reaction chamber; providing a gas mixture in the reaction chamber, wherein the gas mixture includes a carbon-containing gas and hydrogen gas; causing the carbon-containing gas to react and form a graphene layer on the metal layer; and causing the graphene to react with the transitional metal and the carbon-containing gas to form diamond nuclei on the metal layer at a border between the graphene layer and the metal layer. The present invention also relates to a structure formed by the aforesaid method.

Systems and methods for producing carbon-based coatings featuring diamond-like carbon (DLC) structures on the internal surfaces of cylindrical or tube-like components is disclosed. The methods feature the use of plasma-enhanced chemical vapor deposition (PECVD) to provide a generally uniform coating on the surface. Longitudinally homogeneous plasma is ignited directly inside the tube-like component. A bipolar pulse with a reverse active plasma step is used. The pressure and bias voltage are selected so as to cause the deposition of a carbon-based coating on the inner surface.