A glass sheet of silicate-type showing intrinsically a very low visible transmission with high IR transmission at wavelengths of interest (i.e., 850, 900 and 950 nm), and low amounts of Cr.sup.6 species, valuable within the context of autonomous cars, and in particular those fully integrating LiDAR systems. The glass sheet having a composition in a content expressed as weight percentages, by total weight of glass:

TABLE-US-00001 Total iron (expressed as Fe.sub.2O.sub.3) 0.04-1.7%, Chromium (expressed as Cr.sub.2O.sub.3) 0.05-0.8%, Cobalt (expressed as Co) 0.03-0.175%,  where:

Cr.sub.2O.sub.3<1−5.5Co, and 0.5<Cr.sub.2O.sub.3/Fe.sub.2O.sub.3≤1.2.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P.sub.2O.sub.5); 1 to 20 wt % of silicon dioxide (SiO.sub.2); 1 to 20 wt % of boron oxide (B.sub.2O.sub.3); 5 to 20 wt % of one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO.sub.2), vanadium pentoxide (V.sub.2O.sub.5), molybdenum trioxide (MoO.sub.3), or iron oxide (Fe.sub.2O.sub.3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

A glass composition includes: greater than or equal to 24 mol % and less than or equal to 60 mol % SiO.sub.2; greater than or equal to 23 mol % and less than or equal to 35 mol % Al.sub.2O.sub.3; greater than or equal to 3.5 mol % and less than or equal to 35 mol % B.sub.2O.sub.3; greater than 0 mol % and less than or equal to 20 mol % Li.sub.2O; greater than or equal to 0 mol % and less than or equal to 10 mol % Na.sub.2O; and greater than or equal to 0 mol % and less than or equal to 3 mol % K.sub.2O. The sum of Li.sub.2O, Na.sub.2O, and K.sub.2O (i.e., R.sub.2O) in the glass composition may be greater than or equal to 12 mol % and less than or equal to 20 mol %.

The invention relates to a coated glass substrate or glass ceramic substrate with resistant, multi-functional surface properties, including a combination of anti-microbial, anti-reflective and anti-fingerprint properties, or a combination of anti-microbial, anti-reflective and anti-fingerprint properties where the substrate is chemically pre-stressed, or a combination of anti-microbial and anti-reflective properties where the substrate is chemically pre-stressed. The coated glass substrate or glass ceramic substrate exhibits a unique combination of functions which are permanently present and do not exert a negative effect on each other.

Aspects of this disclosure pertain to a colorless material that includes a carrier, copper-containing particles, and quaternary ammonium. In one or more embodiments, the material exhibits, in the CIE L*a*b* system, an L* value in the range from about 91 to about 100, and a C* value of less than about 7, wherein C* equals (a*.sup.2+b*.sup.2). In some embodiments, the material exhibits a greater than 3 log reduction in a concentration of Staphylococcus aureus, under the EPA Test Method for Efficacy of Copper Alloy as a Sanitizer testing conditions.

The present invention relates to a black quartz glass comprising Si of 0.5 to 10 mass %, SiO of 0.1 to 5 mass % and SiO.sub.2 of the residue, wherein the SCE reflectance at a wavelength of 350 nm to 750 nm is 10% or less; a method for producing the black quartz glass, comprising: pressure-molding a powder obtained by mixing and consolidating (1) fumed silica, or (2) a mixture powder of fumed silica and a synthetic silica powder, or (3) a mixture powder of fumed silica, spherical silica and a synthetic silica powder, with a Si powder of 0.5 to 10 mass % and a SiO powder of 0.1 to 5 mass %, and heating and sintering the pressure-molded product in the atmosphere; and a product comprising a black quartz glass member made of the black quartz glass. The present invention allows to provide a black quartz glass which has an excellent light-shielding property, has no risk of causing contamination in a step of using it, has sufficient color uniformity when the size is enlarged, and is capable of producing a large ingot, and to provide a method for producing the black quartz glass with excellent productivity even in the large ingot, and to provide a black quartz glass product made of the black quartz glass.

A vehicle frame assembly is provided. The vehicle frame assembly includes an outer cover panel formed from a thin, thermally strengthened glass material. The thermally strengthened glass material has high levels of surface compressive stress providing sufficient strength and durability for a vehicle frame cover application. The thermally strengthened glass is also thin (e.g., less than 2 mm) providing a lightweight frame material that is suitable for cold-bending to a curvature needed for the vehicle body shape and/or to match the curvature of the vehicle frame.

The subject of the invention is a material comprising a glass sheet coated on at least one portion of one of the faces thereof with a stack of thin layers comprising at least one layer based on a nitride, said stack being coated on at least one portion of its surface with an enamel layer comprising bismuth, said stack further comprising, in contact with the enamel layer, a layer, referred to as a contact layer, which is based on an oxide.

An enamel composition, a method for preparing an enamel composition, and a cooking appliance are provided. The enamel composition may include 15 to 50 wt % of phosphorus pentoxide (P.sub.2O.sub.5); 1 to 20 wt % of silicon dioxide (SiO.sub.2); 1 to 20 wt % of boron oxide (B.sub.2O.sub.3); 5 to 20 wt % of one or more of lithium superoxide (Li.sub.2O), sodium oxide (Na.sub.2O), or potassium oxide (K.sub.2O); 1 to 5 wt % of one or more of sodium fluoride (NaF), calcium fluoride (CaF.sub.2), or aluminum fluoride (AlF.sub.3); 1 to 35 wt % of one or more of magnesium oxide (MgO), barium oxide (BaO), or calcium oxide (CaO); and 5 to 30 wt % of one or more of titanium dioxide (TiO.sub.2), vanadium pentoxide (V.sub.2O.sub.5), molybdenum trioxide (MoO.sub.3), or iron oxide (Fe.sub.2O.sub.3). With such an enamel composition, cleaning may be performed at a low temperature for thermal decomposition, and contaminants, such as fat, may be more completely removed.

Photosensitive lithium zinc aluminosilicate glasses that can be selectively irradiated and cerammed to provide patterned regions of glass and lithium-based glass ceramic, and composite glass articles made from such glasses and glass ceramics are provided. Compressive and tensile stress at the interface of the lithium-based glass-ceramic and lithium zinc aluminosilicate glass may be used to frustrate crack propagation in such a composite glass/glass ceramic article. Methods of making composite glass articles comprising such lithium-based glass ceramics and lithium zinc aluminosilicate glasses are also provided.