Abstract: A method for inspecting a transparent workpiece comprises: directing light from an illumination source onto a plurality of defects formed in the transparent workpiece, wherein the plurality of defects extends in a defect direction, wherein the transparent workpiece comprises a first surface and a second surface; detecting a scattering image signal from light scattered by the plurality of defects using an imaging system, wherein an imaging axis of the imaging system extends at a non-zero imaging angle relative to the defect direction, wherein entireties of at least a subset of the plurality of defects are within a depth of field of the imaging system; and generating a three-dimensional image of at least one of the plurality of defects based on the scattering signal.

Abstract: Foldable substrates comprise a first portion, a second portion, and a central portion positioned therebetween. The central portion comprises a first transition region comprising a first transition width and a first transition surface area extending between a first surface area of the first portion and a first central surface area of the central portion with a first average angle. In aspects, the first average angle is from about 167° to about 179°. In aspects, the first transition width is from about 150 micrometers to about 700 micrometers. Methods comprise disposing an etch mask over the first major surface of the foldable substrate before etching the foldable substrate. In aspects, the etch mask comprises a first polymer layer positioned between a first barrier layer and the first major surface. In aspects, the etch mask comprises a positive photoresist.

Abstract: Methods of making ion-exchanged glass articles including exposing the glass articles to a molten salt including 2 wt % to 10 wt % of an inorganic non-hydroxide salt sufficient to provide a pH from 9 to 12 when 5 grams of the inorganic non-hydroxide salt is dissolved in 100 grams of distilled water. The high-pH molten salts comprising the inorganic non-hydroxide salt can ion-exchange thin glass articles to have desirable mechanical performance without the use of a post-ion-exchange etching step. In some embodiments, the molten salt can include less than 1 wt % sodium nitrate (NaNO3).

Abstract: A textured article is described herein comprising a substrate comprising a textured region defined on a primary surface of the substrate, in which the textured region comprises (a) a Vmp/Sq of at least 0.084, (b) a Vmp/Sq of at least 0.084 and an Smrk2 of at least 90%, and/or (c) a Vmp of at least 10 nm and an Sdq of 0-0.1. The textured article generally has good abrasion resistance and optical properties including antiglare, haze, sparkle, and distinctness of image. A method for making a textured article is also described herein comprising removing a first portion of a primary surface of a substrate through holes penetrating through a stop layer to the primary surface to form seed depressions and unremoved portions, removing the stop layer, and then removing a second portion of the primary surface comprising the seed depressions and the unremoved portions.

Abstract: A coated textured glass article is described herein that comprises: a glass body comprising a first surface; a plurality of polyhedral surface features extending from the first surface; and a coating disposed on the first surface of the body and the plurality of polyhedral surface features. Each of the plurality of polyhedral surface features comprises a base on the first surface and a plurality of facets extending from the base and converging toward one another. The coating comprises a multilayer interference stack.

Abstract: An article includes a glass, glass-ceramic, or ceramic substrate with at least one surface that has a textured region. The textured region includes a plurality of topographical features that define voids opening towards the surface. The article further includes a coating that comprises a cured silicon oxide (SiOx) material positioned in a pattern on at least a portion of the textured region to fill the voids at least partially. The cured SiOx material planarizes the textured region and modifies surface attributes such as haze, distinctness-of-image (DOI), surface roughness, and abrasion performance. A method is disclosed for planarizing a textured surface by jetting a solution comprising a SiOx material and a solvent in a pattern on a portion of the textured surface. The SiOx solution is cured to form a coating comprising the cured SiOx material.

Abstract: Methods of forming vias in a glass-based article by laser-damage-and-etch processes including etching solutions having positive charge organic molecules are disclosed. In some embodiments, a method of forming a via in a glass-based article includes forming a damage track through a bulk of the glass-based article extending from a first surface of the glass-based article to a second surface of the glass-based article, and applying an etching solution to the glass-based article to form the via. The etching solution includes at least one acid and a positive charge organic molecule. An etch rate at the first surface and the second surface is lower than an etch rate at the damage track.

Abstract: Foldable substrates comprise a first portion, a second portion, and a central portion positioned therebetween. The central portion comprises a first central surface area recessed from a first major surface by a first distance and a second central surface area. A second major surface comprises the second central surface area. A blunted edge extends around an entire periphery of the foldable substrate. The blunted edge comprising a first blunted surface area where the blunted edge meets the first major surface and a second blunted surface area where the blunted edge meets the second major surface. Methods comprise laminating the foldable substrate with support layers before removing a peripheral portion of an initial edge of the foldable substrate to form an intermediate edge. The intermediate edge is contacted with an etchant to form the blunted edge. Methods further comprise removing the support layers from the foldable substrate.

Abstract: A light-transmitting structure is disclosed. The light-transmitting structure includes a laminated glass substrate that has a core layer and a first clad layer fused to a first side of the core layer. The core layer comprises a core glass composition that is transparent and has a core refractive index nC. The first clad layer defines a first surface of the laminated glass substrate and comprises a first clad glass composition that is transparent and has a first clad refractive index nCL1 that is lower than the core refractive index nC. The light-transmitting structure further includes a plurality of interdiffusion regions that extend from the core layer and through the first clad layer to define a light-scattering surface interposed with the first surface. Each interdiffusion region comprises an interdiffusion composition that is transparent and has an interdiffusion refractive index nI that is higher than the first clad refractive index nCL1.

Abstract: A light-transmitting structure is disclosed. The light-transmitting structure includes a glass-based substrate that has a first major surface and a second major surface opposite the first major surface. The glass-based substrate comprises a first composition that is transparent and has a first refractive index n1. The light-transmitting structure further includes a plurality of surface regions fused with the glass-based substrate to define a light-scattering surface interposed with the first major surface. Each surface region comprises a second composition that is transparent and has a second refractive index n2 that is different than the first refractive index n1. The first major surface and the light-scattering surface define an interface to an ambient environment.

Abstract: A textured article is described herein that may include a glass-based substrate comprising a first major surface and a second major surface. The first major surface may be opposite the second major surface. At least a portion of the first major surface may be textured. The portion of the first major surface that is textured may have a roughness Ra of greater than or equal to 400 nm and an average pitch. A ratio of roughness Ra to average pitch may be from about 0.01 to about 0.04. At least a portion of the textured article may have an opacity of greater than about 70% or may have a coefficient of friction of from about 0.25 to about 0.4. The coefficient of friction may be measured as the kinetic coefficient of friction using a 500 g load on a foam rubber according to ASTM D1984.

Abstract: A textured glass article includes: a body comprising an aluminosilicate glass comprising greater than or equal to 16 wt % Al2O3, the body having at least a first surface; a plurality of dendritic surface features extending from the first surface, each of the plurality of dendritic surface features comprising a base on the first surface and a surface feature size at the base greater than or equal to 10 ?m and less than or equal to 350 ?m; and a transmittance haze greater than or equal to 50%.

Abstract: Deadfront articles that include a tactile element formed on a first surface of a substrate and a visual element disposed on a second surface of the substrate opposite the first surface. The tactile element is positioned on the first surface of the substrate in a complimentary fashion to the visual element disposed on the second surface of the substrate. The tactile element may include a surface roughness portion having a surface roughness different than the surface roughness of an area bordering the surface roughness portion. The deadfront articles may be incorporated into an automobile interior to provide a visual and haptic display interface for a user.

Abstract: Glass-based substrates are described herein that may be processed by methods including applying a cover article onto a glass-based substrate, submerging the glass-based substrate in an etchant, and maintaining the submersion of the glass-based substrate in the etchant. The glass-based substrate may include a covered surface portion and an exposed surface portion. At least a portion of the covered surface portion may be in direct contact with the cover article. The covered surface portion may not be in contact with the etchant and the exposed surface portion may be in direct contact with the etchant. The etchant may contact the exposed surface portion and the cover article fora time sufficient to etch the exposed surface portion. The cover article may provide a barrier between the etchant and the covered surface portion for the entirety of the submerging.

Abstract: A glass article is provided that includes: a glass substrate comprising a thickness and a primary surface; and a textured region defined by the primary surface. The textured region comprises a low spatial frequency region and a high spatial frequency region substantially superimposed within the low spatial frequency region. Further, the low spatial frequency region comprises an average lateral feature size that exceeds an average lateral feature size of the high spatial frequency region. In addition, the textured region comprises a surface roughness (Ra) from about 10 nm to about 1000 nm.

Abstract: A method for extracting lithium metal ions from glass includes contacting the glass with a molten salt bath for a duration of time, wherein the glass includes lithium and the contacting the glass with the molten salt bath for the duration of time extracts at least 40% of the lithium metal ions from the glass. The method further includes removing residual solids from the molten salt bath, wherein the residual solids include residual glass having a reduced concentration of lithium. The method further includes precipitating lithium metal ions from the molten salt bath to produce a solid precipitated lithium salt and separating the precipitated lithium salt from the molten salt bath.

Abstract: Methods of recovering lithium from glass include crushing the glass to produce glass particles and contacting the glass particles with an aqueous leaching solution at a leaching temperature greater than ambient temperature and less than the boiling temperature of the aqueous leaching solution to produce a leachate slurry. The glass particles include lithium. The aqueous leaching solution includes sulfuric acid in water or sodium hydroxide in water. Contacting the glass particles with the aqueous leaching solution leaches greater than or equal to about 50% of the lithium out of the glass particles. The methods further comprise separating the leachate slurry to produce a solid residue and a leachate, the leachate comprising the lithium leached from the glass particles. The method further include recovering the lithium from the leachate through precipitation.

Abstract: A process for recovering lithium from lithium-containing glass based materials includes providing lithium-containing particles comprising the lithium-containing glass-based materials; contacting the lithium-containing particles with calcium salts in water, wherein the contacting causes leaching of at least a portion of lithium ions from the lithium-containing particles into a first leachate of the first mixture; separating the first mixture into the first leachate and a first residue; and recovering lithium from the first leachate.

Abstract: A textured glass-based article with multiple haze levels is provided. The textured glass-based articles are produced by utilizing a combination of etching and mechanical polishing to produce the multiple haze levels.

Abstract: A glass article is provided that includes: a glass substrate comprising a thickness and a primary surface; and a textured region defined by the primary surface. The textured region comprises a low spatial frequency region and a high spatial frequency region substantially superimposed within the low spatial frequency region. Further, the low spatial frequency region comprises an average lateral feature size that exceeds an average lateral feature size of the high spatial frequency region. In addition, the textured region comprises a surface roughness (Ra) from about 10 nm to about 1000 nm.