Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.

Disclosed are pretreatment compositions and associated methods for treating metal substrates with pretreatment compositions, including ferrous substrates, such as cold rolled steel and electrogalvanized steel. The pretreatment composition includes: (a) a group IIIB and/or IVB metal; (b) free fluorine; (c) a source of aluminum ions; and (d) water. The methods include contacting the metal substrates with the pretreatment composition.

A steel alloy workpiece and a method for making a press-hardened steel (PHS) component using the steel alloy workpiece is provided. The steel alloy workpiece includes between about 1.0 and 5.0 weight percent chromium, between about 0.5 and 2.0 weight percent silicon, and a surface having a predetermined imprinted pattern. The imprinted pattern includes one of a plurality of overlapping nested sinusoidal waves and a honey-comb pattern, and ascribes a surface roughness of between about 1.0 microns and 2.5 microns. The method includes providing the steel alloy workpiece, heating the workpieces at a predetermined time and temperature, hot stamping the workpieces into the PHS component, quenching the PHS component at a predetermined quench rate, and e-coating the PHS component. The e-coating is applied directly onto the surface of the PHS component.

A steel alloy workpiece and a method for making a press-hardened steel (PHS) component using the steel alloy workpiece is provided. The steel alloy workpiece includes between about 1.0 and 5.0 weight percent chromium, between about 0.5 and 2.0 weight percent silicon, and a surface having a predetermined imprinted pattern. The imprinted pattern includes one of a plurality of overlapping nested sinusoidal waves and a honey-comb pattern, and ascribes a surface roughness of between about 1.0 microns and 2.5 microns. The method includes providing the steel alloy workpiece, heating the workpieces at a predetermined time and temperature, hot stamping the workpieces into the PHS component, quenching the PHS component at a predetermined quench rate, and e-coating the PHS component. The e-coating is applied directly onto the surface of the PHS component.

According to one example, preparing a substrate for an electronic device can include forming a deposition layer on a magnesium alloy substrate, anodizing the magnesium alloy substrate, and forming an electrophoretic deposition layer on the anodized magnesium alloy substrate.

According to one example, preparing a substrate for an electronic device can include forming a deposition layer on a magnesium alloy substrate, anodizing the magnesium alloy substrate, and forming an electrophoretic deposition layer on the anodized magnesium alloy substrate.

A method of manufacturing a color filter is provided. The method includes: forming at least black matrix electrodes, first electrodes, second electrodes and third electrodes insulated from each other on a base substrate; and depositing at least a black matrix layer, a first color filter pattern, a second color filter pattern and a third color filter patter on the base substrate using an electrophoretic deposition process respectively by means of the black matrix electrodes, the first electrodes, the second electrodes and the third electrodes. A color filter and a display device are also provided. The described solution provides a process which is simple, convenient to operate, ease of control, and allows fast film formation.

A method of manufacturing a color filter is provided. The method includes: forming at least black matrix electrodes, first electrodes, second electrodes and third electrodes insulated from each other on a base substrate; and depositing at least a black matrix layer, a first color filter pattern, a second color filter pattern and a third color filter patter on the base substrate using an electrophoretic deposition process respectively by means of the black matrix electrodes, the first electrodes, the second electrodes and the third electrodes. A color filter and a display device are also provided. The described solution provides a process which is simple, convenient to operate, ease of control, and allows fast film formation.

One example provides a method of manufacturing. The method comprises oxidizing, using plasma, a first surface of a substrate comprising a metal-material. The method further comprises cutting into the substrate through the oxidized first surface to expose a non-oxidized second surface of the substrate, the second surface not parallel to the first surface. The method further comprises disposing, using electrophoretic deposition, a coating layer over the exposed second surface to form an article having the oxidized first surface and the coated second surface.

A method for making a nanodiamond article includes applying an adhesion promoting layer to a substrate, and electrophoretically depositing a nanodiamond film on the substrate with the adhesion promoting layer thereon in a solution to make the nanodiamond article. The nanodiamond article may include a substrate, a nanodiamond film over the substrate, and the adhesion promoting layer between the substrate and the nanodiamond film.