A quartz glass crucible 1 having a cylindrical side wall portion 10a, a bottom portion 10b, and a corner portion 10c includes a transparent layer 11 as an innermost layer made of quartz glass, a semi-molten layer 13 as an outermost layer made of raw material silica powder solidified in a semi-molten state, and a bubble layer 12 made of quartz glass interposed therebetween. An infrared transmissivity of the corner portion 10c in a state where the semi-molten layer 13 is removed is 25 to 51%, the infrared transmissivity of the corner portion 10c in the state where the semi-molten layer 13 is removed is lower than an infrared transmissivity of the side wall portion 10a, and the infrared transmissivity of the side wall portion 10a in the state where the semi-molten layer 13 is removed is lower than an infrared transmissivity of the bottom portion 10b.

An apparatus and a method for providing nano coating on a surface is provided. The apparatus includes a spark head unit electrically coupled to a voltage source and mounted on a frame. The spark head unit includes electrode pairs composed of a predefined inorganic material. The electrode pairs are mounted on the spark head unit in a three-dimensional array format. The electrode pairs are adapted to provide a spark between electrodes of the corresponding electrode pairs to obtain a fused electrode material upon receiving a voltage from the voltage source. The electrode pairs are also adapted to deposit the fused electrode material obtained on a surface thereby providing nano coating on the surface. The fused electrode material includes oxides of the predefined inorganic material. The three-dimensional array format is adapted to provide non-uniform deposition of the fused electrode material on the surface.

An electronic device includes electrical components in a housing. The components may include optical components such as a display. Protective structures may be used to protect the optical components. The protective structures may include one or more protective transparent layers such as layers of glass or crystalline material such as sapphire. The protective transparent layers may be coated with an oleophobic coating. To enhance coating durability, catalyst may be used to help bond the oleophobic coating. An adhesion promotion layer such as a silicon oxide layer may be deposited on the transparent protective layer. A catalyst layer such as a layer of sodium fluoride may be deposited on the adhesion promotion layer. The oleophobic material may be evaporated or otherwise deposited on the catalyst layer. Heat and moisture may help the oleophobic material form chemical bonds with the adhesion promotion layer, thereby forming a durable oleophobic coating.

The present invention relates to a photocatalyst device obtained by thin film making on solid surfaces, wherein the device comprises of titania, optionally in the form of composite with noble or transition metal(s) or metal oxides. This device (FIG. 1) is evaluated in direct sunlight for hydrogen generation (FIG. 4) and oxidation of alcohols (Table 3) using aqueous alcohol solution through water splitting and simultaneously oxidizing alcohol to oxygenated products.

A process includes the formation of a colored glass layer on a glass substrate by flame pyrolysis of a solution including at least one precursor of a cobalt, iron, manganese, chromium, silver, copper, gold or selenium oxide, alone or as a mixture of several of them. Moreover, a glass substrate is coated with a layer of colored glass obtained by such a process.

The present invention concerns a method comprising the steps of: introducing a substrate comprising a surface to be coated in a low-pressure reaction chamber; exposing said surface to a plasma during a treatment period within said reaction chamber; ensuring a stable plasma ignition by applying a power input, characterized in that the power input is continuously strictly higher than zero Watt (W) during said treatment period and comprises at least a lower limit power and at least an upper limit power strictly larger than said lower limit power, thereby obtaining a substrate with a coated surface. The present invention further concerns an apparatus for treating a substrate with a low-pressure plasma process and a substrate treated as such.

Making a glass-based article having a coating and a target shape which comprises a planar central portion and a perimeter portion which borders at least part of the planar central portion and extends out of the plane of the planar central portion, the perimeter portion having a perimeter edge and a target edge-to-opposite edge dimension. The method includes forming a glass-based part to provide an initial formed part having an initial three-dimensional shape that is different from the target shape for at least the target edge-to-opposite edge dimension. Applying a coating to the initial formed part to form the glass-based article having a coating, the coating imparting a stress to the initial molded part that causes a calculated, warp-induced change to the initial shape.

A method for forming a substrate with a multi-layered, flexible, and anti-scratch metal oxides protective coating being deposited onto the substrate is provided in the present invention, wherein the top most layer of the coating comprises Al.sub.2O.sub.3 or a mixture thereof such that the top most layer acts as an anti-scratching layer. The multi-layered, flexible and anti-scratch metal oxides protective coating also retains the flexibility of the underlying substrate.

A composition of AR layer that is aimed to match the refractive index of the underlying substrate e.g. glass, chemically strengthened glass, plastics etc., so as maximum light is transmitting through it. For a device with an sapphire film for anti-scratch protection, because sapphire has a different refractive index to that of the substrate, therefore existing AR layer will not function as well as it should; not only the transmitted light is reduced in quantity, its transmitted range will be changed such that imaging or display color is compromised. Therefore an integrated AR with sapphire film with the top most AR layer as Al.sub.2O.sub.3 which also acts as anti-scratching layer will eliminate this problem. This claim involves replacing one of the materials for AR layer is Al.sub.2O.sub.3 such that the top most AR layer as Al.sub.2O.sub.3 which also acts as anti-scratching layer.

The invention concerns a nanostructured layer system comprising a substrate, an intermediate layer, which comprises an aromatic azo compound, applied to the substrate, and a metallic cover layer applied thereto, whereby the intermediate layer is structured in a light-induced manner by irradiation of light.

The nanostructured layer system is characterized in that the metallic cover layer contains nickel as a ferromagnetic metal and that the light is linearly polarized for structuring.

The invention further concerns a method for producing such a nanostructured layer system.