Abstract: Methods of polishing and/or forming a coated article include polishing a first major surface of a substrate with a polishing liquid. Then, methods include washing the first major surface with a cleaning liquid. In aspects, the cleaning liquid has a pH from about 7 to about 11. In aspects, the polishing liquid is supplied at a rate of 20 mL/min or less. In aspects, methods can further include applying a hydrophobic coating to form a coating with an exterior surface of the coated article. A coated article includes a hydrophobic coating with an exterior surface disposed on a first major surface of a substrate. A water contact angle of the exterior surface is about 100° or more. The coated article can exhibit an abraded water contact angle of about 100° or more after being abraded with steel wool for 8000 cycles in the Taber Test.

Abstract: A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·?m. Further, the optical film structure exhibits a residual compressive stress of ?700 MPa and an elastic modulus of ?140 GPa.

Abstract: A method for ion-exchanging glass-ceramic substrates, the method comprising: a first contacting step comprising contacting a first glass-ceramic substrate with a molten salt bath comprising at least one of NaNO3 and KNO3, whereby (1) lithium ions diffuse from the first glass-ceramic substrate into the molten salt bath to provide a first dissolved lithium ion concentration, and (2) at least one of sodium and potassium ions diffuse from the molten salt bath into the first glass-ceramic substrate, thereby forming a first glass-ceramic article; a pH adjusting step that adjusts a pH of the molten salt bath; a lithium ion scavenging step that adjusts the first dissolved lithium ion concentration; wherein the pH adjusting and lithium ion scavenging steps provide a regenerated molten salt bath having a target pH and a second dissolved lithium ion concentration; and a second contacting step comprising contacting a second glass-ceramic substrate with the regenerated molten salt bath.

Abstract: A glass manufacturing apparatus includes a delivery apparatus defining an upstream portion of a ribbon travel path extending in a first travel direction. The glass manufacturing apparatus includes a forming roll extending along an axis parallel to the travel path and perpendicular to the first travel direction. The forming roll includes a recess that imparts a protrusion to a ribbon traveling along the ribbon travel path in the first travel direction. The forming roll includes a first surface defining the recess and a first surface characteristic. The forming roll includes a second surface defining an area surrounding the recess and including a second surface characteristic. The first surface characteristic is different than the second surface characteristic. During a cooling period of time, the first surface cools at a faster rate than the second surface. Methods of manufacturing a ribbon are provided.

Abstract: Glass articles having high surface compressive stress (CS) and high CS-integrated area are provided. Methods of making such articles include chemical ion exchange processes.

Abstract: A transparent article is described herein that includes: a substrate comprising an opposing first and second primary surface; and an optical film structure disposed on the first primary surface. The optical film structure comprises a scratch-resistant layer, a plurality of alternating high refractive index (RI) and low RI layers, and an outer and inner structure, the scratch-resistant layer disposed between the outer and inner structures. The outer structure can comprise at least one medium RI layer in contact with one of the high RI layers and the scratch-resistant layer. The medium RI layer comprises an RI from 1.55 to 1.80, each of the high RI layers comprises an RI of >1.80, and each of the low RI layers comprises an RI<1.55. A sum of the physical thicknesses of all of the low RI layers in the outer structure can be <200 nm.

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The stress profiles contain a high peak tension and a region with a high degree of negative curvature. The glass-based articles herein provide high fracture resistance after multiple drops.

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The stress profiles contain a high peak tension and a region with a high degree of negative curvature. The glass-based articles herein provide high fracture resistance after multiple drops.

Abstract: A method of forming a treated glass-based article comprises: contacting an aluminosilicate glass-based article with an etchant, the etchant comprising: greater than or equal to 30 wt % and less than or equal to 100 wt % potassium hydroxide; and less than or equal to 10 wt % sodium hydroxide; and wherein a temperature of the etchant is greater than or equal to 130° C. during the contacting.

Abstract: Methods of forming a glass-ceramic article, the method are provided. Embodiments of the method may include initially nucleating a precursor glass composition at a first nucleation temperature and maintaining the first nucleation temperature for a pre-nucleating time period to produce a pre-nucleated crystallizable glass composition, wherein the pre-nucleated crystallizable glass composition comprises 5 wt % to 20 wt % crystalline phase ASTM C1365-18, forming the pre-nucleated crystallizable glass composition into an initial 3D shape; further nucleating the initial 3D shape for a nucleating time period to a second nucleation temperature to produce a nucleated crystallizable glass composition; and ceramming the nucleated crystallizable glass composition to a crystallization temperature and maintaining the ceramming temperature for a crystallization time period to produce the glass-ceramic article. The glass-ceramic article may have a final 3D shape is within 0.1 mm of the original design specifications.

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.

Abstract: A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·?m. Further, the optical film structure exhibits a residual compressive stress of ?700 MPa and an elastic modulus of ?140 GPa.

Abstract: Methods of chemically strengthening a substrate includes contacting a surface of the substrate with a molten salt solution maintained at a temperature from 350° C. to 530° C. for from 10 minutes to 8 hours. The molten salt solution includes one or more of from greater than 0.5 wt % to 10 wt % of a nitrite salt, from 2.0 wt % to 10 wt % of a sulfate salt, from 1.0 wt % to 8.0 wt % of a salt of an alkaline earth metal, or combinations thereof. The substrate has a copper concentration of about 0.01 wt % or more of 100 wt % of the substrate. The substrate has a compressive stress region with a maximum compressive stress of 400 MegaPascals or more. The surface of the substrate can be substantially free of a copper containing salt. In aspects, a reflectance haze of the surface can be 2% or less.

Abstract: Methods for regenerating a salt bath composition include heating the salt bath composition to an ion exchange temperature to form a molten salt bath. The methods may further include contacting at least a portion of an ion-exchangeable article that includes lithium oxide (Li2O) with the molten salt bath. Lithium cations may diffuse from the ion-exchangeable article and into the molten salt bath. Additionally, the methods may include adding a first phosphate salt to the molten salt bath. A lithium phosphate salt that includes at least a portion of the lithium cations may be formed and precipitate from the molten salt bath. Furthermore, the methods may include adding a multivalent salt that includes a multivalent metal cation to the molten salt bath. A second phosphate salt that includes the multivalent metal cation may be formed and precipitate from the molten salt bath.

Abstract: Methods of forming a glass-ceramic article, the method are provided. Embodiments of the method may include initially nucleating a precursor glass composition at a first nucleation temperature and maintaining the first nucleation temperature for a pre-nucleating time period to produce a pre-nucleated crystallizable glass composition, wherein the pre-nucleated crystallizable glass composition comprises 5 wt % to 20 wt % crystalline phase ASTM C1365-18, forming the pre-nucleated crystallizable glass composition into an initial 3D shape; further nucleating the initial 3D shape for a nucleating time period to a second nucleation temperature to produce a nucleated crystallizable glass composition; and ceramming the nucleated crystallizable glass composition to a crystallization temperature and maintaining the ceramming temperature for a crystallization time period to produce the glass-ceramic article. The glass-ceramic article may have a final 3D shape is within 0.1 mm of the original design specifications.

Abstract: Disclosed herein are embodiments of a color glass panel. The color glass panel includes a glass body having a first major surface and a second major surface opposite the first major surface. The glass body is made from an alkali aluminosilicate glass composition containing Li2O. At least one of the first major surface or the second major surface has a length and a width, and the length and width define an area. A ratio of a spodumene crystal area of spodumene crystals to the area is 2% or less. Further, a transmittance through the glass panel from the first major surface to the second major surface is less than about 92% for at least one wavelength in a range from about 380 nm to about 750 nm.

Abstract: An article comprises a first plate, a second plate and a cured adhesive layer. The first plate is made of a first chemically-strengthened glass-based material. The first plate comprises: a first major surface opposing a second major surface and a thickness equal to or greater than 0.4 mm and less than or equal to 3.0 mm. The second plate is made of a second chemically-strengthened transparent glass-based material. The second plate comprises: a first major surface opposing a second major surface and a thickness equal to or greater than 0.4 mm and less than or equal to 3.0 mm. The cured adhesive layer adheres a portion of the first major surface of the plate to the second major surface of the second plate. The second plate has an area equal to or less than 25% of the area of the first plate.

Abstract: Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a range from 8 mol % to 100 mol %. The glass-based article includes sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article. The glass-based article has compressive stress layer extending from the surface to a spike depth of layer from 4 micrometers to 8 micrometers. The glass-based article includes a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8.

Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.

Abstract: Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a range from 8 mol % to 100 mol %. The glass-based article includes sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article The glass-based article has compressive stress layer extending from the surface to a spike depth of layer from 4 micrometers to 8 micrometers. The glass-based article includes a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8.