Abstract: A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.

Abstract: Embodiments of a glass-ceramic, glass-ceramic article or glass-ceramic window that includes 40 mol %?SiO2?80 mol %; 1 mol %?Al2O3?15 mol %; 3 mol %?B2O3?50 mol %; 0 mol %?R2O?15 mol %; 0 mol %?RO?2 mol %; 0 mol %?P2O5?3 mol %; 0 mol %?SnO2?0.5 mol %; 0.1 mol %?MoO3?15 mol %; and 0 mol %?WO3?10 mol % (or 0 mol %<MoO3?15 mol %; 0.1 mol %?WO3?10 mol %; and 0.01 mol %?V2O5?0.2 mol %), wherein the WO3 (mol %) plus the MoO3 (mol %) is from 1 mol % to 19 mol %, and wherein R2O (mol %) minus the Al2O3 (mol %) is from ?12 mol % to 4 mol %, are disclosed.

Abstract: Methods of manufacturing a glass-based article comprise: after mechanical polishing of a glass-based substrate, treating at least one surface of the glass-based substrate for protection of the at least one surface from contamination and/or for removal of contaminants from the at least one surface by a treatment other than ultrasonic cleaning; and exposing the glass-based substrate to an ion exchange treatment after the treating step to form the glass-based article. The treating step includes: exposing the at least one surface to a high pH soaking for removal of contaminants; deionizing the at least one surface for removal of contaminants; and/or applying a temporary coating to the at least one surface for protection of the at least one surface from contamination, and removing the temporary coating prior to the ion exchange treatment step. The ion exchange treatment may comprise a molten salt bath having an increased pH and temperature.

Abstract: Embodiments of the present disclosure are directed to methods for inducing color change in glass and glass-ceramic articles. According to one embodiment, color change may be x-ray induced in glass or glass-ceramic articles. The method for x-ray inducing color change may include exposing the glass or glass-ceramic article to x-rays at a temperature of up to 200° C. to induce a colored area in the glass or glass-ceramic article. The glass or glass-ceramic article may comprise: 50-85 mole % SiO2; 5-25 mole % Al2O3; 0-15 mole % P2O5; 0-15 mole % B2O3; 5-25 mole % R2O, wherein R2O?Li2O+Na2O+K2O.

Abstract: Embodiments of glass articles exhibiting a grey or a green tint are described. In one or more embodiments, the glass article comprises a glass composition including SiO2, Al2O3 B2O3 or MgO, a non-zero amount of alkali metal oxides (R2O), R2O—Al2O3 in the range from about ?0.5 to about 1.5; and up to 1 mol % Fe2O3. In one or more embodiments, the glass composition includes a ratio of R2O to Al2O3 equal to or greater than about 1, Na2O, from 0-13 mol % MgO, at least one of K2O, SnO2 and TiO2. Laminates including such glass articles and methods of making the glass articles are also described.

Abstract: Alkali aluminosilicate glasses that are ion exchangeable to high compressive stresses, have fast ion exchange kinetics, and high intrinsic damage resistance. The glasses achieve all of the above desired properties either with only small amounts of P2O5 (<1 mol %) or without addition of any P2O5.

Abstract: Ion exchangeable glasses containing SiO2, Al2O3, Na2O, MgO, B2O3, and P2O5 are provided. The compressive stresses of these ion exchanged glasses are greater than 900 megapascals (MPa) at a depth of 45 or 50 microns (?m) with some glasses exhibiting a compressive stress of at least 1 gigaPascals (GPa). The ion exchange rates of these glasses are much faster than those of other alkali aluminosilicate glasses and the ion exchanged glass is resistant damage to impact damage. A method of ion exchanging the glass is also provided.

Abstract: A glass-ceramic includes SiO2 from about 50 mol % to about 80 mol %, Al2O3 from about 0.3 mol % to about 15 mol %, B2O3 from about 5 mol % to about 40 mol %, WO3 from about 2 mol % to about 15 mol %, and R2O from about 0 mol % to about 15 mol %, wherein R2O is one or more of Li2O, Na2O, K2O, Rb2O and Cs2O. A difference in the amount of the R2O and the Al2O3 ranges from about ?12 mol % to about 2.5 mol %.

Abstract: A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.

Abstract: Ion exchangeable glasses containing SiO2, Al2O3, Na2O, MgO, B2O3, and P2O5 are provided. The compressive stresses of these ion exchanged glasses are greater than 900 megapascals (MPa) at a depth of 45 or 50 microns (?m) with some glasses exhibiting a compressive stress of at least 1 gigaPascals (GPa). The ion exchange rates of these glasses are much faster than those of other alkali aluminosilicate glasses and the ion exchanged glass is resistant damage to impact damage. A method of ion exchanging the glass is also provided.

Abstract: A glass roof shingle includes a shingle cover layer made of a glass. A shingle base layer is disposed underneath the shingle cover layer. The shingle base layer and shingle cover layer define a cavity. A seal area formed between the shingle base layer and shingle cover layer and around the cavity controls ingress of moisture into the cavity. A photovoltaic module may be disposed within the cavity.

Abstract: A glass-ceramic, includes a silicate-containing glass comprising a first portion and a second portion. A plurality of crystalline precipitates comprising at least one of W and Mo. The crystalline precipitates are distributed within at least one of the first and second portions of the silicate-containing glass. The glass-ceramic comprises a difference in absorbance between the first and second portions of 0.04 optical density (OD)/mm or greater over a wavelength range of from 400 nm to 1500 nm.

Abstract: An article that includes: SiO2 from 40 mol % to 80 mol %; Al2O3 from 1 mol % to 15 mol %; B2O3 from 5 mol % to 50 mol %; WO3 from 1 mol % to 15 mol %; WO3 plus MoO3 from 1 mol % to 18 mol %; SnO2 from 0.01 mol % to 1 mol %; and R2O from 1.1 mol % to 16 mol %. The R2O is one or more of Li2O, Na2O, K2O, Rb2O and Cs2O. R2O minus Al2O3 ranges from +0.1 mol % to +4 mol %.

Abstract: A strengthened antimicrobial glass including greater from about 50.0 mol. % to about 65.0 mol. % SiO2, about 14.0 mol. % to about 22.0 mol. % Al2O3, about 14.0 mol. % to about 22.0 mol. % R2O, wherein R is an alkali metal, and about 4.0 mol. % to 10.0 mol. % P2O5. The glass may have a compressive stress layer having a thickness of greater than or equal to about 20 ?m less than or equal to about 60 ?m and having a compressive stress of greater than or equal to about 700 MPa. The glass may have an antimicrobial activity greater than or equal to about 1.0 log kill at about 23° C. and about 40.0% relative humidity. A method for making the glass may include obtaining a glass article, strengthening the glass article by contact with a first ion-exchange liquid, and contacting the glass article with second ion-exchange liquid comprising an antimicrobial agent.

Abstract: Embodiments of the present disclosure pertain to crystallizable glasses and glass-ceramics that exhibit a black color and are opaque. In one or more embodiments, the crystallizable glasses and glass-ceramics include a precursor glass composition that exhibits a liquidus viscosity of greater than about 20 kPa*s. The glass-ceramics exhibit less than about 20 wt % of one or more crystalline phases, which can include a plurality of crystallites in the Fe2O3—TiO2—MgO system and an area fraction of less than about 15%. Exemplary compositions used in the crystallizable glasses and glass-ceramics include, in mol %, SiO2 in the range from about 50 to about 76, Al2O3 in the range from about 4 to about 25, P2O5+B2O3 in the range from about 0 to about 14, R2O in the range from about 2 to about 20, one or more nucleating agents in the range from about 0 to about 5, and RO in the range from about 0 to about 20.

Abstract: A strengthened glass having a stress profile that differs from error-function and parabolic profiles. Stress relaxation and thermal annealing/diffusion effects, which occur at longer ion exchange and/or anneal times increase the depth of compression of the surface layer. A method of achieving these effects is also provided.

Abstract: A method includes forming a glass article. The glass article includes a core and a clad adjacent to the core. The core includes a first glass composition. The clad includes a second glass composition different than the first glass composition. A degradation rate of the second glass composition in a reagent is greater than a degradation rate of the first glass composition in the reagent.

Abstract: Embodiments of a glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than about 0.7·t up to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer, are disclosed. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t) and a maximum central tension in the range from about 80 MPa to about 100 MPa. In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a value at a point between the first surface and the second surface and increases from the value to the second surface. The concentration of the metal oxide may be about 0.

Abstract: An ion exchangeable glass having a high degree of resistance to damage caused by abrasion, scratching, indentation, and the like. The glass comprises alumina, B2O3, and alkali metal oxides, and contains boron cations having three-fold coordination. The glass, when ion exchanged, has a Vickers crack initiation threshold of at least 10 kilogram force (kgf).

Abstract: Glass compositions having from 50 to 80 mol % SiO2, less than or equal to 25 mol % Al2O3, from 6.5 to 10.0 mol % Li2O and, optionally, other components, such as alkali metal oxides, alkaline earth metal oxides, zinc oxide, phosphorus oxides, rare earth metal oxides, boron oxide, and small amounts of other species, such as titania, zirconia, and tin oxide. The glass compositions are characterized by zero or positive values of the ratios, in terms of mol %: Al2O3-?R2O?0, or Al2O3-?R2O-?RO?0, or Al2O3-?R2O-?RO—P2O5?0, where R2O means alkali metal oxides and RO means divalent metal oxides. The glass compositions may have a liquidus viscosity greater than or equal to 1000 Poises to less than or equal to 300,000 Poises.