Abstract: A metal part for an electronic device includes a metal main body and a hole structure located on the metal main body. The hole structure includes a first hole and a second hole intercommunicated with the first hole. A metal article including the metal part and a preparation method of the metal part are also provided.

Abstract: A connecting article includes a non-metallic body and a bonding layer. The non-metallic body includes a non-metal. The bonding layer is bonded to the non-metallic body. The bonding layer includes the non-metal, a first alloy, and a second alloy. The present disclosure further provides a method for manufacturing the connecting article, and a laser device.

Abstract: A metal-and-resin composite includes an aluminum or aluminum alloy substrate, an aluminum oxide film on the aluminum or aluminum alloy substrate, and at least one resin article coupled to the aluminum oxide film. The aluminum or aluminum alloy substrate defines a plurality of corrosion pores, and the aluminum oxide film defines a plurality of nano-pores. Some of the nano-pores extend through the aluminum oxide film and couple to the corrosion pores. Some parts of the resin article fill in the nano-pores and the corrosion pores, thus greatly improving bond between the resin article and the aluminum or aluminum alloy substrate.

Abstract: A composite includes a substrate and at least a resin composition formed on the substrate. A surface of the substrate is defined a plurality of micro-pores therein. The resin composition is coupled to the surface having the micro-pores by the resin composition filling and hardening within the micro-pores. The resin composition contains crystalline thermoplastic synthetic resins. A method for making the composite is also described.

Abstract: A composite of metal and resin includes a metal piece and a resin piece. The metal piece includes a surface. Micropores are formed on the surface. The micropores have inlet diameters smaller than bottom diameters thereof. The resin piece is partially inserted into the micropores to combine with the metal piece.

Abstract: A method of making a coated article includes providing a substrate; forming a nickel layer on the substrate by magnetron sputtering; forming a titanium layer on the nickel layer by magnetron sputtering; and applying a thermal oxidative treatment to the nickel and titanium layered substrate to form a catalyst layer and a self-cleaning layer. The self-cleaning layer includes metallic titanium, metallic nickel, nickel oxide and titanium dioxide.

Abstract: A process for surface treating aluminum or aluminum alloy comprises the following steps. Providing a substrate made of aluminum or aluminum alloy. The substrate is treated with a chemical conversion treatment solution containing molybdate as the main film forming agent, to form a molybdate conversion film on the substrate. Then, a ceramic coating comprising refractory compound is formed on the molybdate conversion film by physical vapor deposition.

Abstract: A device housing having an aluminum or aluminum alloy substrate, an aluminum layer and a corrosion resistant layer formed on the aluminum or aluminum alloy substrate in that order is provided. The corrosion resistant layer is an Al—C—N gradient layer implanted with iridium ions by ion implantation process. The atomic percentages of N and C in the Al—C—N gradient layer both gradually increase from the area near the aluminum layer to the area away from aluminum or aluminum alloy substrate. Therefore the device housing has a high corrosion resistance. A method for making the device housing is also provided.

Abstract: A coating includes a nano-composite layer including an equal number of films. The films are stacked on top of each other one after another. Each film includes a zirconium-copper carbonitride layer and a zirconium carbonitride layer.

Abstract: A coated article includes a substrate, a first layer deposited on the substrate, a second layer deposited on the first layer and a third layer deposited on the second layer. The first layer substantially consists of one material selected from the group consisting of Al layer, Al alloy layer, Zn layer or Zn alloy layer. The first layer is white. The second layer substantially includes metal M?, O and N, wherein M? is Al or Zn. The third layer is an aluminum oxide layer or a silicon oxide layer. The third layer has an anti-fingerprint property.

Abstract: An coated article includes a substrate; and a coating deposited on the substrate, wherein the coating is a titanium layer mixed with a first element and a second element, M is at least one element selected from a group consisting of iron, cobalt, nickel, copper, niobium, hafnium and tantalum; R is at least one element selected from a group consisting of scandium, yttrium and lanthanide.

Abstract: A coated article includes a substrate, a first layer formed on the substrate, and a second layer deposited on the first layer. The substrate comprises a first outer surface. The substrate defines a plurality of first convexes in the first outer surface. The first layer comprises a second outer surface away from the first outer surface. The second outer surface of the first layer defines a plurality of second convexes corresponding to the first convexes in the position. The second layer substantially includes substance M, O, and N, wherein M is Al or Si.

Abstract: A coated article is described. The coated article includes a substrate; and a photochromic layer formed on the substrate. The photochromic layer is a titanium layer doped with metal element ‘M’. The element ‘M’ is selected from a group consisting of nickel, iron, and chromium. A method for applying the photochromic layer to the substrate is also described.

Abstract: A coated article includes a substrate, a color layer formed on the substrate and a ceramic layer deposited on the color layer. The color layer substantially includes metal Zn and O. The ceramic layer substantially includes substance M, O, and N, wherein M is Al or Si.

Abstract: A coated article includes a substrate, a first ceramic layer deposited on the substrate, a color layer deposited on the first ceramic layer, and a second ceramic layer deposited on the color layer. The first ceramic layer substantially includes substance M, elemental O and elemental N, wherein M is Al or Si. The color layer substantially includes metal M?, O and elemental N, wherein M? is elemental Al or Zn. The second ceramic layer substantially includes substance M, elemental O and elemental N, wherein M is Al or Si.

Abstract: A coated article includes a substrate, an anti-corrosion layer formed on the substrate, and a decorative layer formed on the anti-corrosion layer. The anti-corrosion layer is an amorphous alloy layer containing elements of iron, chromium, boron and M, wherein M is one or more selected from the group consisting of phosphorus, carbon and silicon. A method for making the coated article is also described.

Abstract: A process for treating the surface of magnesium alloy comprises providing a substrate made of magnesium alloy. The substrate is then treated with a chemical conversion treatment agent containing ammonium dihydrogen phosphate and potassium permanganate, to form a chemical conversion film on the substrate. A ceramic coating is then formed on the chemical conversion film using vacuum sputtering.

Abstract: A coated article includes a substrate and a Si—B—C—N ceramic coating deposited on the substrate by magnetron sputtering process. The Si—B—C—N ceramic coating is an amorphous coating, the weight of elemental Si in the coating is between about 30 wt % and about 60 wt % of the total weight of Si, B, C and N, the weight of elemental B in the coating is between about 10 wt % and about 20 wt % of the total weight of Si, B, C and N, the weight of elemental C in the coating is between about 10 wt % and about 20 wt % of the total weight of Si, B, C and N, the weight of elemental N in the coating is between about 20 wt % and about 30 wt % of the total weight of Si, B, C and N.

Abstract: A process for treating the surface of magnesium alloy comprises providing a substrate made of magnesium alloy. The substrate is then treated with a chemical conversion treatment solution containing cerium nitrate and potassium permanganate as main film forming agents, to form a cerium conversion film on the substrate. A ceramic coating comprising refractory metal compound is next formed on the cerium conversion film by physical vapor deposition.

Abstract: A stainless steel-and-resin composite includes a stainless steel part and a resin part bonded to the stainless steel part. The stainless steel part has a porous film resulted from anodizing formed thereon. The porous film defines pores with an average diameter of about 100 nm-500 nm. The resin part is integrally bonded to the surface of the stainless steel part having the porous film, with portions of the resin part penetrating in the pores. The resin part mainly comprises crystalline thermoplastic synthetic resin.