Disclosed herein are methods specifically tailored for facilitating the mitigation of cosmetic impressions associated with fingerprint impressions on surface(s) of articles of manufacture made from anodized substrates. To this end, such methods provide for removal of fingerprints by enzymatically functionalizing the surface(s) of the article of manufacture (e.g., a cosmetic coating thereof) to generate an enzymatically active surface and activating such enzymatically functionalized surface(s) to promote such fingerprint removal. Thus methods and articles of manufacture made in accordance with such methods provide improved end-use utility and functionality of many products for consumer electronic applications, automotive applications, building materials applications, and the like.

This application describes covers for electronic devices, electronic devices, and methods for making the covers. In one example, described herein is a cover for an electronic device comprising: a substrate comprising a metal; a passivation layer or a micro-arc oxidation layer deposited on at least one surface of the substrate; a primer coating layer on the passivation layer or the micro-arc oxidation layer; an optional base coating layer on the primer coating layer; a top coating layer on the optional base coating layer or on the primer coating layer; and a hydrophobic coating layer.

This application describes covers for electronic devices, electronic devices, and methods for making the covers. In one example, described herein is a cover for an electronic device comprising: a substrate comprising a metal; a passivation layer or a micro-arc oxidation layer deposited on at least one surface of the substrate; a primer coating layer on the passivation layer or the micro-arc oxidation layer; an optional base coating layer on the primer coating layer; a top coating layer on the optional base coating layer or on the primer coating layer; and a hydrophobic coating layer.

A coated metal alloy substrate, a process for producing a coated metal alloy substrate, and an electronic device having a housing comprising a coated metal alloy substrate are described. The coated metal alloy substrate comprises an electrolytic sealing layer on the metal alloy substrate, and an electrophoretic deposition layer deposited on the electrolytic sealing layer.

In one example, an electronic device housing may include a substrate, a micro-arc oxidation layer formed on a surface of the substrate, and an electroless plating layer formed on the micro-arc oxidation layer. Example electroless plating layer may be one of an electroless tin plating layer and an electroless silver plating layer. Further, the electronic device housing may include an electrophoretic deposition layer formed on the electroless plating layer.

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.

A magnesium alloy/resin composite structure (106) including a magnesium alloy member (103) and a resin member (105) integrated to the magnesium alloy member (103) and made of a thermoplastic resin composition, in which the magnesium alloy member (103) surface to which the resin member (105) is not integrated is coated with a layer including a manganese atom, an oxygen atom, and a sulfur atom.

A method of preparing a modified-metal surface. The method includes preparing a solution of a phosphorous-based acid in a solvent; immersing a strip of the metal work piece into the solution of the phosphorous-based acid; immersing a strip of a reference metal into the solution of the phosphorous-based acid; supplying a voltage for a duration of time to prepare a phosphorous acid-modified metal work piece; removing the phosphorous acid-modified metal work piece; cleaning and drying the phosphorous acid-modified metal work piece; applying a chitosan solution to the surface in order to attach chitosan/modified chitosan to the phosphorous acid based modified surface; prepare the modified-metal surface; and cleaning and drying the modified-metal surface.

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.

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.