Abstract: A portable electronic device includes a main body, a flip cover, and a hinge assembly. The flip cover is rotatably fixed on the main body via the hinge assembly. The hinge assembly includes a sensing module, a hinge mechanism, and a microcontroller. The sensing module is configured to detect control signals. The hinge mechanism is configured to control an angle between the flip cover and the main body. The microcontroller is electrically connected to the sensing module. The microcontroller receives the control signals from the sensing module, and controls the hinge mechanism to rotate to a specified angle according to the control signals. The angle between the flip cover and the main body is automatically adjusted correspondingly.

Abstract: A coated article is described. The coated article includes a substrate, and an anti-fingerprint film formed on the substrate. The anti-fingerprint film is a carbon-nitrogen-fluorine layer. The carbon-nitrogen-fluorine has a chemical formula of CXN1-XFY, wherein 0.6?X?0.8 and 0.2?Y?0.4. A method for making the coated article is also described.

Abstract: A coated article, includes a substrate, an anti-corrosion layer deposited on the substrate, the anti-corrosion layer being composed of ZrW2O8 and AlON. The disclosure also describes a method to make the coated article.

Abstract: A housing is provided which includes 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. The corrosion resistant layer is an Al—C—N layer. Then, Gd ions is implanted in the Al—C—N layer by ion implantation process. The atomic percentages of N and C in the Al—C—N gradient layer gradually increase from the side of Al—C—N gradient layer near the aluminum or aluminum alloy substrate to the other side of Al—C—N gradient layer, away from aluminum or aluminum alloy substrate. Therefore the housing has a high corrosion resistance. A method for making the housing is also provided.

Abstract: A coated article includes a substrate and a color layer formed on the substrate. The substrate is made of aluminum or aluminum alloy. The color layer includes an aluminum layer formed on the substrate and an aluminum oxide layer formed on the aluminum layer. In the CIE LAB color system, L* coordinate of the color layer is between 75 and 100, a* coordinate of the color layer is between ?1 and 1, b* coordinate of the color layer is between ?1 and 1. The coated article has a white color.

Abstract: A coated article is provided. The coated article includes a substrate, a base layer formed on the substrate; a nickel oxynitride layer formed on the base layer; and a silicon nitride layer formed on the nickel oxynitride layer. The nickel oxynitride layer and silicon nitride layer can protect the substrate from oxidizing at high temperature, which effectively extend the use time of the coated article. A method for making the coated article is also described.

Abstract: A coated article is provided. The coated article includes a substrate and a thermochromic layer formed on the substrate. The thermochromic layer is a vanadium dioxide layer co-doped with M and R. M comprises one or more elements selected from a group consisting of titanium, niobium, molybdenum and tungsten; R comprises one or more elements selected from a group consisting of rhodium, palladium and ruthenium. The thermochromic temperature of the thermochromic layer is reduced by doping M and R. A method for making the coated article is also described there.

Abstract: A coated article is provided. A coated article includes a composite substrate made from carbon fiber and zirconium diboride. A chromium layer is deposited on the substrate. A chromium diffusing layer is formed between the substrate and the chromium layer. A chromium-nitrogen layer is deposited on the chromium layer. A iridium layer is deposited on the chromium-nitrogen layer opposite to the chromium layer, wherein the chromium-nitrogen layer includes a first chromium-nitrogen layer and a second chromium-nitrogen layer. The first chromium-nitrogen layer abuts the chromium layer. The second chromium-nitrogen layer abuts the iridium layer. The atomic nitrogen content in the first chromium-nitrogen layer gradually increases with the thickness of the first chromium-nitrogen layer. The atomic nitrogen content in the second chromium-nitrogen layer gradually decreases with the thickness of the second chromium-nitrogen layer.

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: An coated article includes a substrate; and a coating deposited on the substrate, wherein the coating being a zirconium layer co-doped with M and R. 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 is described. The coated article includes a substrate, and an anti-fingerprint film formed on the substrate. The anti-fingerprint film includes a non-crystalline silicon dioxide layer formed on the substrate and a non-crystalline silicon-oxygen-fluorine layer formed on the non-crystalline silicon dioxide layer. The silicon-oxygen-fluorine has a chemical formula of SiOxFy, wherein 0<x<2, 0<y<4. 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. Then an inorganic chemical conversion film is formed on the substrate by an inorganic chemical conversion treatment. An organic chemical conversion film is subsequently formed on the inorganic chemical conversion film by an organic chemical conversion treatment. Then a ceramic coating comprising refractory metal compound is formed on the chemical conversion film by physical vapor deposition. An article made of magnesium alloy created by the present process also is provided.

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 process for treating the surface of aluminum or aluminum alloy comprises providing a substrate made of aluminum or aluminum alloy. Then a zinc-plating layer is formed on the substrate by electroless plating with a zinc electroless plating solution, and a ceramic coating comprising refractory compound is next formed on the zinc-plating layer using physical vapor deposition.

Abstract: A coated article is provided. The coated article includes a substrate, a hydrophobic layer formed on the substrate. The hydrophobic layer includes a first layer portion formed on the substrate and a second layer portion formed on the first layer portion, the first layer portion is a CNy layer, the second layer portion is a CNxFz layer, wherein 1?y?3, 1?x?3, 1?z?4. The water contact angle of the hydrophobic layer is more than 110°. The hydrophobic layer has a good chemical stability, high-temperature resistance and a good abrasion resistance, which effectively extends the use time of the coated article. A method for making the coated article is also described there.

Abstract: A coated article is provided. The coated article includes a substrate, a hydrophobic layer formed on the substrate. The hydrophobic layer is an amorphous carbon nitride layer which is defined as CNy, wherein y is in a range of from about 1 to about 3. The water contact angle of the hydrophobic layer 13 is about 100° to about 110°. The hydrophobic layer has a good chemical stability, high-temperature resistance and a good abrasion resistance, which effectively extends the use time of the coated article. A method for making the coated article is also described therein.

Abstract: A housing is provided which includes 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. The corrosion resistant layer is an Al—C—N layer. Then, La ions is implanted in the Al—C—N layer by ion implantation process. The atomic percentages of N and C in the Al—C—N gradient layer gradually increase from the side of Al—C—N gradient layer near the aluminum or aluminum alloy substrate to the other side of Al—C—N gradient layer, away from aluminum or aluminum alloy substrate. Therefore the housing has a high corrosion resistance. A method for making the housing is also provided.

Abstract: An article includes a substrate made of carbon fiber and zirconium diboride composites; an chromium layer deposited on the substrate; an chromium diffusing layer formed between the substrate and the chromium layer; and a iridium layer deposited on the chromium layer opposite to the chromium diffusing layer.

Abstract: A coated article is described. The coated article includes a substrate, a magnesium oxide-alumina compound layer formed on the substrate, and an anti-fingerprint layer formed on the magnesium oxide-alumina compound layer. The anti-fingerprint layer is a layer of magnesium-aluminum-oxygen-fluorine having the chemical formula of MgAlOxFy, wherein 0<x<2.5, 0<y<5. 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 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.