Abstract: A glass article includes at least one glass substrate on which a stack of layers is deposited. The stack includes at least one layer consisting of a layer of silicon nitride of formulation SiNx, in which x is less than 1.25. The physical thickness of the SiNx layer is between 5 and 50 nm. The light reflection of the glass article, measured on the side of the substrate on which the stack is deposited, is greater than 20%.

Abstract: A process for depositing a coating on a glass substrate includes co-sputtered simultaneously by a plasma, in one and the same chamber of the vacuum deposition device, a first constituent made of a material consisting of an oxide, a nitride or an oxynitride of a first element and a second constituent consisting of the metallic form of a second element. The process also includes introducing a hydride, a halide or an organic compound of a third element, different than the first element, into the plasma, to recover the substrate covered with the coating comprising the first, second and third elements at the outlet of the device. The coating consists of metal nanoparticles of the second element dispersed in an inorganic matrix of the first and third elements. The coating displays a plasmon absorption peak in the visible region.

Abstract: A glass article includes at least one glass substrate on which a stack of layers is deposited. The stack includes at least one layer consisting of a layer of silicon nitride of formulation SiNx, in which x is less than 1.25. The physical thickness of the SiNx layer is between 5 and 50 nm. The light reflection of the glass article, measured on the side of the substrate on which the stack is deposited, is greater than 20%.

Abstract: 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.

Abstract: A solar protection and/or thermal insulation glazing including a substrate, in particular a glass substrate, provided with a stack of thin layers which act on solar radiation, the stack having the succession of the following layers, starting from the surface of the glass: an underlayer or a set of underlayers, the underlayer(s) having dielectric materials, a layer based on titanium oxide also having silicon, the overall Si/Ti atomic ratio in said layer being between 0.01 and 0.25, and in which Si and Ti represent at least 90% of the atoms other than oxygen, the thickness of the layer being between 20 and 70 nm, an overlayer or a set of overlayers, said overlayer(s) having dielectric materials.

Abstract: A process for depositing a coating on a glass substrate includes co-sputtered simultaneously by a plasma, in one and the same chamber of the vacuum deposition device, a first constituent made of a material consisting of an oxide, a nitride or an oxynitride of a first element and a second constituent consisting of the metallic form of a second element. The process also includes introducing a hydride, a halide or an organic compound of a third element, different than the first element, into the plasma, to recover the substrate covered with the coating comprising the first, second and third elements at the outlet of the device. The coating consists of metal nanoparticles of the second element dispersed in an inorganic matrix of the first and third elements. The coating displays a plasmon absorption peak in the visible region.

Abstract: A solar protection and/or thermal insulation glazing including a substrate, in particular a glass substrate, provided with a stack of thin layers which act on solar radiation, the stack having the succession of the following layers, starting from the surface of the glass: an underlayer or a set of underlayers, the underlayer(s) having dielectric materials, a layer based on titanium oxide also having silicon, the overall Si/Ti atomic ratio in said layer being between 0.01 and 0.25, and in which Si and Ti represent at least 90% of the atoms other than oxygen, the thickness of the layer being between 20 and 70 nm, an overlayer or a set of overlayers, said overlayer(s) having dielectric materials.

Abstract: 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.

Abstract: A material includes a glass or glass-ceramic sheet provided on at least one portion of one of its faces with a photocatalytic coating based on titanium oxide deposited on a silica-based sublayer deposited by combustion chemical vapor deposition, the roughness Ra of which is between 4 and 30 nm, limits included.

Abstract: A roofing product can include roofing granules that can include substrates and a coating covering the substrates of the roofing granules. The substrates can be in the form of base particles, such as ceramic base particles or proppants, or base particles having a coating with an L* of at least approximately 55. In a particular aspect, a coating at an exposed surface of the roofing granule can include a compound that includes a metallic element; and nitrogen, carbon, or a combination of nitrogen and carbon. In another aspect, the coating has a relatively low L*, reasonably high solar reflectance, and good emissivity. The coating can be formed on a substrate using a fluidized bed. In a particular aspect, the coating can be performed as a chemical vapor deposition or a sol-gel process. If needed or desired, the roofing granules can be doped to achieve their desired properties.

Abstract: A material includes a glass substrate provided on at least one portion of one of its faces with a photocatalytic coating based on titanium dioxide that covers at most 15% of the subjacent surface, the photocatalytic coating being in the form of a two-dimensional network of interconnected strands.

Abstract: A roofing product can include roofing granules that can include base particles and a coating covering the base particles of the roofing granules. In a particular aspect, the coating can include a compound that includes a metallic element; and nitrogen, carbon, or a combination of nitrogen and carbon. In another aspect, the coating has a reflectivity of at least approximately 17% for a radiation having wavelengths in a range of 1000 nm to 2500 nm. In a further aspect, the particular coating has a coating reflectivity no greater than 99% of a TiO2 reflectivity for such radiation. A coating can be formed on a base particle of a roofing granule using a fluidized bed. In a particular aspect, coating can be performed as a chemical vapor deposition or a sol-gel process. If needed or desired, the roofing granules can be doped to achieve their desired properties.