An optical device includes a substrate, a first surface-relief grating including grooves and ridges formed on or in the substrate, a first overcoat layer in the grooves of the first surface-relief grating, and a first antireflective layer on the first overcoat layer. The ridges of the first surface-relief grating include high-refractive index, photoactive metal oxide nanoparticles and a material of the first overcoat layer in regions between the metal oxide nanoparticles, or the first overcoat layer includes the metal oxide nanoparticles and a material of the first antireflective layer in regions between the metal oxide nanoparticles. Methods of fabricating the optical device are also described.

A method of increasing the lubricity of an extrusion component, the method comprising: functionalizing a surface of a wall of an extrusion body with PDA material to form a PDA treated surface; coating the PDA treated surface with a lubricious material; and heat treating the wall of the extrusion body for a time and a temperature sufficient to cause the lubricious material to adhere to the PDA material, and for the PDA material to adhere to the wall; wherein the surface of the wall is optionally oxidized prior to the functionalizing. Also an extrusion component comprising: an extrusion body comprising an inlet face and an outlet face, the body comprising a base structure comprising an internal wall defining at least a portion of an extrusion pathway from the inlet face to the outlet face, wherein at least part of the internal wall comprises a lubricious coating that defines at least part of the extrusion pathway.

A computer readable barcode on a surface of a corrodible material, and method of forming. A surface depression of an inverse bar code pattern is etched or engraved within the surface and around the code elements. A corrosion-resistant material is cured within the surface depression formed by the engraving. The corrosion-resistant material is lightly colored to frame the formed barcode lines.

The present disclosure discloses a device and a method for preparing a high-density aligned carbon nanotube film. The device includes a container main body, a buffer partition plate and a solvent lead-out part. The buffer partition plate is located at a lower part of the container main body. The solvent lead-out part communicates with an interior of the container main body through a through hole in a side wall of the container main body and extends to an outside of the container main body. The method includes injecting a carbon nanotube solution into a container; immersing a substrate in the carbon nanotube solution; injecting a sealing liquid that is immiscible with the carbon nanotube solution along the substrate or the side wall of the container main body; and leading the solvent out or pulling the substrate such that the liquid surface of the substrate undergoes relative motion.

Described herein is a multilayered article and methods of making and using such articles. The multilayered article comprises: .Math. (a) a microsphere layer comprising a plurality of microspheres (11) disposed in a monolayer; .Math. (b) a bead bonding layer (12) comprising a first major surface and a second opposing major surface wherein the plurality of microspheres is at least partially embedded in the first major surface of the bead bonding layer, and wherein the bead bonding layer comprises a thermoset polyurethane, and wherein the thermoset polyurethane is derived from one or more liquid polyols; and .Math. (c) an elastomeric layer (14) disposed on the second opposing major surface of the bead bonding layer.

The purpose of the present invention is the use of (Bi.sub.1-xA.sub.x)(V.sub.1-yM.sub.y)0.sub.4 in a non-stick coating for a household article so as to reduce or prevent the color change of said coating during the manufacturing process thereof, characterised in that: —x is equal to 0 or x is from 0.001 to 0.999; —y is equal to 0 or y is from 0.001 to 0.999; —A and Mare selected from the group consisting of nitrogen, phosphorus, an alkali metal, an alkaline earth metal, a transition metal, a poor metal, a metalloid or a lanthanide; —A and M are different from each other.

A manufacturing method of a highly flameproof laminated composite material is provided in the present disclosure. The manufacturing method of the highly flameproof laminated composite material includes the steps as follows. A raw material is provided, a shaping step is performed and a combining step is performed. The raw material includes an inorganic powder and a polymer material. In the shaping step, the raw material is made into at least one inorganic layer, an inorganic sheet, a ply of film, or a layer of coating. In the combining step, the inorganic layer is made to be connected to a surface of a substrate, so as to obtain the highly flameproof laminated composite material. A weight ratio of the inorganic powder and the polymer material is 0.01-0.1, and a thickness of the inorganic layer is 0.1 mm-8.0 mm.

A sheet metal member forming method comprises placing a fiber bundle of a predetermined length, via a thermosetting resin, in a predetermined position on a surface of a sheet metal member, forming a coating film on at least a part of the sheet metal member after the placing of the fiber bundle, and while heating and drying the coating film, heat-curing the thermosetting resin to bond the fiber bundle to the sheet metal member.

Provided in certain embodiments herein are alternating current electrospray systems and processes for manufacturing depositions, such as thin layer depositions. In some embodiments, processes and systems provided herein are suitable for and configured to manufacture uniform depositions, such as having uniform thickness.

A manufacturing method of anti-fog coatings on lenses is provided. The method includes: a lens assembling step, a lens spraying step, a pre-drying step, a curing step and a lens obtaining step. In the lens assembling step, a plurality of lenses are disposed on a base of a movable carrier. In the lens spraying step, the plurality of lenses are moved to a spraying device and sprayed with a light-curable anti-fog material on a surface thereof. In the pre-drying step, any extra light-curable anti-fog materials are removed from the plurality of lenses by a suction device. In the curing step, the plurality of lenses are placed into a light curing apparatus and radiated by the ultraviolet lights to form an anti-fog coating on the surface of the plurality of lenses. In the lens obtaining step, the plurality of lenses are taken out of the light curing apparatus.