A method of manufacturing a glass article comprising: forming a first layer of a first metal on a glass substrate, the glass substrate comprising silicon dioxide and aluminum oxide; subjecting the glass substrate with the first layer of the first metal to a first thermal treatment; forming a second layer of a second metal over the first layer of the first metal; and subjecting the second layer of the second metal to a second thermal treatment, the first thermal treatment and the second thermal treatment inducing intermixing of the first metal, the second metal, and at least one of aluminum, aluminum oxide, silicon, and silicon dioxide of the glass substrate to form a metallic region comprising the first metal, the second metal, aluminum oxide, and silicon dioxide. The first metal can be silver. The second metal can be copper.

A coated article is described herein that may comprise a substrate and an optical coating. The substrate may have a major surface comprising a first portion and a second portion. A first direction that is normal to the first portion of the major surface may not be equal to a second direction that is normal to the second portion of the major surface. The optical coating may be disposed on at least the first portion and the second portion of the major surface. The coated article may exhibit at the first portion of the substrate and at the second portion of the substrate hardness of about 8 GPa or greater at an indentation depth of about 50 nm or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test.

An optical functional film containing a siliceous material, wherein a refractive index n.sub.A of one surface A of said optical functional film to light is larger than a refractive index n.sub.b of the other side surface B to light, and the refractive index to light gradually decreases from said surface A to said surface B and wherein when a refractive index of a medium X coming into contact with said surface A is n.sub.x and a refractive index of a medium Y coming into contact with said surface B is n.sub.y, the relation n.sub.y<n.sub.b<n.sub.a<n.sub.x is satisfied and wherein the film is manufactured by the steps of a first layer forming step and a second layer forming step; and a heating step of heating to cure said first layer and said second layer, wherein the contacting parts of said first layer and said second layer are compatibilized.

A coated article may comprise a substrate and an optical coating. The substrate may have a major surface comprising a first portion and a second portion. A first direction that is normal to the first portion of the major surface may not be equal to a second direction that is normal to the second portion of the major surface. The optical coating may be disposed on at least the first portion and the second portion of the major surface. The coated article may exhibit at the first portion of the substrate and at the second portion of the substrate hardness of about 8 GPa or greater at an indentation depth of about 50 nm or greater as measured on the anti-reflective surface by a Berkovich Indenter Hardness Test.

A coating for a glass substrate is a multilayer coating including at least one silicon layer. The at least one silicon layer has a carbon content gradient over its layer thickness.

An article that includes: a substrate having a glass, glass-ceramic or a ceramic composition and comprising a primary surface; and a protective film disposed on the primary surface. The protective film comprises a thickness of greater than 1.5 microns and a maximum hardness of greater than 15 GPa at a depth of 500 nanometers, as measured on the film disposed on the substrate. Further, the protective film comprises a metal oxynitride that is graded such that an oxygen concentration in the film varies by 1.3 or more atomic %. In addition, the substrate comprises an elastic modulus less than an elastic modulus of the film.

A material includes a transparent substrate on which is deposited a stack of layers including n silver-based metal functional layers and n+1 dielectric sets of layers, with n3 and each silver-based metal functional layer being placed between two dielectric sets of layers. The dielectric set of layers located below the first silver-based metal functional layer starting from the substrate and the dielectric set of layers located above the last silver-based metal functional layer starting from the substrate each include a high-refractive-index layer, the value of the index2.15 at the wavelength of 550 nm; the value of the refractive index of at least one of the high-index layers2.40 at the wavelength 550 nm; and the value of the ratio of the optical thickness of each of the high-refractive-index layers to the optical thickness of the dielectric set of layers in which it is included is included between 0.25 and 0.55.

A glazing includes a glass substrate on which is deposited a coating including at least one layer, the layer being formed from a material including metal nanoparticles dispersed in an inorganic matrix of an oxide, in which the metal nanoparticles are made of a metal chosen from the group formed by silver, gold, platinum, copper and nickel or of an alloy formed from at least two of these metals, in which the matrix including an oxide of at least one element chosen from the group of titanium, silicon and zirconium and in which the atomic ratio M/Me in the material is less than 1.5, M representing all atoms of the elements of the group of titanium, silicon and zirconium present in the layer and Me representing all of the atoms of the metals of the group formed by silver, gold, platinum, copper and nickel present in the layer.

A vehicle glazing includes on its surface to be exposed to the exterior atmosphere, at least in a zone not wiped by the windscreen wipers, a mineral oxide layer of 0.1 to 20 m thickness, 30 to 90% of the volume of which consists of 20 to 300 nm open pores that are distributed uniformly throughout the thickness of the layer, and almost all of which are connected to one another, the internal and external surface of the layer being functionalized with a compound containing a perfluoroalkyl or alkyl functional group, then saturated with a hydrophobic oil that impregnates the functionalized porous layer and forms a film on the surface thereof, the at least one zone being located facing a detecting device such as an anti-collision/obstacle-detecting/security video camera, or similar, placed in the interior of the vehicle, in particular on the face of the glazing.

An article is described herein that includes: a substrate having a glass, glass-ceramic or a ceramic composition and comprising a primary surface; and a protective film disposed on the primary surface. The protective film comprises a thickness of greater than 1.5 microns and a maximum hardness of greater than 15 GPa at a depth of 500 nanometers, as measured on the film disposed on the substrate. Further, the protective film comprises a metal oxynitride that is graded such that an oxygen concentration in the film varies by 1.3 or more atomic %. In addition, the substrate comprises an elastic modulus less than an elastic modulus of the film.