A method of corrosion inhibition on a substrate may comprise: applying a sealing solution to an anodized surface of the substrate, wherein the sealing solution may comprise a nanomaterial dopant and a corrosion inhibiting compound, wherein the nanomaterial dopant may comprise at least one of graphene nanoplatelets, carbon nanotubes, and carbon nanofibers, and wherein the corrosion inhibiting compound may comprise at least one of a trivalent chromium compound, a trivalent praseodymium compound, nickel acetate, cobalt acetate, siloxanes, silicates, orthophosphates, molybdates, or a compound comprising at least one of elemental or ionic praseodymium, cerium, cesium, lanthanum, zinc, lithium, magnesium, or yttrium; and drying the sealing solution on the substrate to form a sealing layer comprising the nanomaterial dopant and the corrosion inhibiting compound.

The surface-treated aluminum material includes an aluminum material and an oxide film formed on at least part of a surface of the aluminum material, and when a perimeter and an area of a void on a surface of the oxide film are represented by L and S, respectively, an undulation degree of the void defined as L.sup.2/S×(¼π) is 2.5 or more.

A method is disclosed for treating an anodized metal surface. According to the method, polynuclear clusters comprising aluminum oxide hydroxide are applied to the anodized metal surface.

A method for the surface treatment of a part made of aluminum or aluminum alloy, comprising an anodization step and a step of sealing with a silicate salt. Additionally, a surface treatment method according to the invention for manufacturing an aluminium or aluminium alloy part intended, in particular for use in the aviation sector.

The patent application discloses a degradable composite with coatings. The light metal workpiece with enhanced surface protection may comprise a light metal matrix having an exposed surface; a light metal oxide ceramic layer formed in at least a portion of the exposed surface; and a non-transparent metal alloy layer directly on the light metal oxide ceramic layer.

A data analysis method for optimization of aluminum anodizing and dyeing process acquires a plurality of sample data groups, each sample data groups comprising dyeing result data and parameter data of multiple processing parameters. Contribution value of each processing parameter data relative to the dyeing result data in each of the plurality of sample data groups is determined, and the contribution values are used to determine at least one essential processing parameter. The essential processing parameters are then adjusted according to a data analysis result for improving quality of products. A computing device and storage medium are also provided.

A decoration panel for home appliances having excellent reflectivity and durability, the decoration panel being applicable to outer sides of various home appliances, a home appliance including the decoration panel, and a method for manufacturing the decoration panel. More specifically, the decoration panel for home appliances includes: an aluminum substrate with one surface in which an engraved pattern having a preset width and a preset depth is formed, the engraved pattern having micro unevenness formed in a surface of the engraved pattern; a porous aluminum oxide layer formed on the engraved pattern; and a sealing layer formed to close a plurality of pores of the porous aluminum oxide layer, wherein an edge of the aluminum substrate is in a Chamfering (C) shape or a Rounding (R) shape.

Disclosed are a structural color variable photonic crystal composite material and a method of manufacturing the same, and more particularly, a photonic crystal composite material having various changes in color by external stimulation and controlling the color change, and a method of manufacturing the same. The structural color variable photonic crystal composite material includes a metal having a metal oxide layer formed on its surface, wherein the metal oxide layer includes a plurality of pores, and a variable material that swells and contracts within the pores by external stimulation.

An electronic device according to various embodiments of the disclosure includes: a display; and a housing adjacent to the display, wherein at least a part of the housing includes: an aluminum alloy layer; a first film layer formed on the aluminum alloy layer; and a second film layer formed between the aluminum alloy layer and the first film layer and which includes multiple snowflake structures arranged adjacent to the first film layer. The first film layer is formed by a first anodizing process using a first voltage on the aluminum alloy layer, and the second film layer is formed by a second anodizing process using a second voltage on the aluminum alloy layer after the first anodizing process.

Various components of an electronic device housing and methods for their assembly are disclosed. The housing can be formed by assembling and connecting two or more different sections together. The sections of the housing may be coupled together using one or more coupling members. The coupling members may be formed using a two-shot molding process in which the first shot forms a structural portion of the coupling members, and the second shot forms cosmetic portions of the coupling members.