Abstract: The present invention provides a tempered glass sheet having a compressive stress layer in a surface thereof, the tempered glass sheet including as a glass composition, in terms of mol %, 50% to 80% of SiO2, 8% to 25% of Al2O3, 0% to 10% of B2O3, 3% to 15% of Li2O, 3% to 21% of Na2O, 0% to 10% of K2O, 0% to 10% of MgO, 0% to 10% of ZnO, and 0% to 15% of P2O5.

Abstract: A glass article includes a first surface; a second surface opposed to the first surface; a side surface connecting the first surface to the second surface; a first surface compressive region extending from the first surface to a first depth; a second surface compressive region extending from the second surface to a second depth; and a side compressive region extending from the side surface to a third depth, where the first surface and the side surface are non-tin surfaces, the second surface is a tin surface, and a maximum compressive stress of the second surface compressive region is greater than a maximum compressive stress of the first surface compressive region.

Abstract: A salt bath for glass reinforcement, including a nitrate and a metal compound. The mass fraction of the nitrate is not less than 50%, and the nitrate is in a molten state. The metal compound is fused into the nitrate, and the metal compound contains the same metal element as the nitrate. The mass fraction of the metal element in the molecular formula corresponding to the metal compound is greater than the mass fraction in the molecular formula corresponding to the nitrate. Thus, compared with the existing salt bath, under the condition of the same mass, the salt bath can provide more effective amount of metal ions, thereby increasing the strength of glass after reinforcement, and at the same time, the lifetime of the salt bath is increased, reducing the waste of resources and environmental pollution.

Abstract: A method for generating various stress profiles for chemically strengthened glass. An alkali aluminosilicate glass is brought into contact with an ion exchange media such as, for example, a molten salt bath containing an alkali metal cation that is larger than an alkali metal cation in the glass. The ion exchange is carried out at temperatures greater than about 420° C. and at least about 30° C. below the anneal point of the glass.

Abstract: A glass container comprises a glass body comprising a first region under a compressive stress extending from a surface of the glass body to a depth of compression and a second region extending from the depth of compression into a thickness of the glass body, the second region being under a tensile stress. The glass container also includes a localized compressive stress region having a localized compressive stress extending from the surface to a localized depth of compression within the body. The localized depth of compression is greater than the depth of compression of the first region. The glass container also includes a crack re-direction region extending in a predetermined propagation direction, wherein the crack re-direction region possesses a higher tensile stress than the tensile stress in the second region in a sub-region of the crack re-direction region, the sub-region extending substantially perpendicular to the predetermined propagation direction.

Abstract: A method of performing ion exchange of a thin, flexible glass substrate having an average thickness equal to or less than about 0.3 mm to chemically strengthen the glass substrate is disclosed. The chemically strengthened glass substrate comprises a first compressive stress layer having a first depth of layer, and a second compressive stress layer having a second depth of layer, the first and second stress layers being separated by a layer of tensile stress. A laminated article comprising the chemically strengthened glass substrate is also described.

Abstract: Glass-based articles having sections of different thicknesses where a maximum central tension in a thinner section is less than that of a thicker section. The articles comprise an alkali metal oxide having a independent nonzero concentrations that vary along at least a portion of the thickness of each section. Consumer electronic products may comprise the glass-based articles having sections of different thicknesses.

Abstract: A glass-based article includes a first major surface and a first compressive stress region extending to a first depth of compression from the first major surface. The glass-based article includes a second major surface including a first surface portion and one or more edge surface portions recessed from the first surface portion. The glass-based article includes a second compressive stress region extending to a second depth of compression from the first surface portion. Additionally, methods of manufacturing a glass-based article are disclosed.

Abstract: The present invention provides a method of increasing the strength of a glass substrate for optical filters and a tempered-glass optical filter using a tempered glass substrate manufactured using the same, in which the glass substrate for optical filters is subjected to chemical tempering so that a compressive stress (CS) and a depth of layer (DOL) of the glass substrate are adjusted to increase the bending strength thereof.

Abstract: A plate-like chemically strengthened glass having a compression stress layer on the surface of the glass, wherein the compressive stress value (CS0) at the glass surface of is 500 MPa or more, the plate thickness (t) is 400 ?m or more, the compressive stress depth of layer (DOL) is (t×0.15) ?m or more, the compressive stress values (CS1) and (CS2) when the depth from the glass surface is ¼ and ½, respectively, are 50 MPa or more, m1 expressed by {m1=(CS1?CS2/(DOL/4?DOL/2)} is ?1.5 MPa/?m or more, m2 expressed by {m2=(CS2/(DOL/2?DOL)} is 0 MPa/?m or less, and m2 is less than m1.

Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07t to a depth of about 0.26t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18t to about 0.25t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa?m or more as measured according to the double cantilever beam method.

Abstract: Asymmetrically strengthened glass articles, methods for producing the same, and use of the articles in portable electronic device is disclosed. The asymmetrically strengthened glass articles include glass articles having a deeper compressive stress layer in a thicker portion of the glass article. Using a budgeted amount of compressive stress and tensile stress, asymmetric chemical strengthening is optimized for the utility of a glass article. In some aspects, the strengthened glass article can be designed for reduced damage, or damage propagation, when dropped.

Abstract: Glass-based articles are provided with improved stress profiles. The glass-based articles provide improved drop performance and damage resistance. The glass-based articles may be produced with a single ion exchange treatment.

Abstract: Methods and apparatus for controlling a flow of process material to a deposition chamber.

Abstract: A chemically strengthened glass having a thickness t of 2 mm or less, having a compressive stress value (CS90) at a portion of 90 ?m deep from a glass surface being 25 MPa or more, and satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°.

Abstract: The disclosure is directed to a chemically strengthened glass having antimicrobial properties and to a method of making such glass. In particular, the disclosure is directed to a chemically strengthened glass with antimicrobial properties and with a low surface energy coating on the glass that does not interfere with the antimicrobial properties of the glass. The antimicrobial has an Ag ion concentration on the surface in the range of greater than zero to 0.047 ?g/cm2. The glass has particular applications as antimicrobial shelving, table tops and other applications in hospitals, laboratories and other institutions handling biological substances, where color in the glass is not a consideration.

Abstract: Glass-based articles are manufactured by a unique ion exchange process that results in glass-based articles having improved stress profiles with higher stress values at moderate depths. A medium of the ion exchange process includes ions of two or more alkali metals of two or more alkali metal oxides in a base composition of a glass-based substrate in a ratio such that ions of each alkali metal are in chemical equilibrium with each of the respective alkali metals of the alkali metal oxides in the base glass composition.

Abstract: A method of strengthening an alkali aluminoborosilicate glass. A compressive layer extending from a surface of the glass to a depth of layer is formed by exchanging larger metal cations for smaller metal cations present in the glass. In a second step, metal cations in the glass are exchanged for larger metal cations to a second depth in the glass that is less than the depth of layer and increase the compressive stress of the compressive layer. Formation of the compressive layer and replacement of cations with larger cations can be achieved by a two-step ion exchange process. An alkali aluminoborosilicate glass having a compressive layer and a crack indentation threshold of at least 3000 gf is also provided.

Abstract: A non-frangible glass article strengthened by a dual or two-step ion exchange (IOX) process, where the first IOX step leads to a depth of compressive layer FSM_DOL>0.1·t or, in some embodiments, FSM_DOL>0.15·t, where t is the thickness of the glass, is provided. The glass article has a compressive stress CS1 after the first IOX step at the surface of from 100 MPa to 400 MPa or, in some embodiments, from 150 MPa to 300 MPa. The first IOX step is followed by a second IOX step, leading to a “spike” compressive stress CS2 after the second IOX step at the surface of greater than 500 MPa or, in some embodiments, 700 MPa. The width of the spike generated by the second IOX is between 1 ?m and 30 ?m, or between 8 ?m and 15 ?m, using the criteria where the magnitude (absolute value) of the slope of the spike is higher than 20 MPa/?m.

Abstract: An object of the present invention is to provide a chemically strengthened glass that can effectively suppress strength of a glass from being deteriorated even though performing chemical strengthening and has high transmittance (that is, low reflectivity). The present invention relates to a chemically strengthened glass having a compressive stress layer formed on a surface layer thereof by an ion exchange method, in which the glass contains sodium and boron, and has a delta transmittance being +0.1% or more, and in which a straight line obtained by a linear approximation of a hydrogen concentration Y in a region of a depth X from an outermost surface of the glass satisfies a specific relational equation in X=0.1 to 0.4 (?m).

Abstract: According to an exemplary embodiment of the present disclosure, a method of manufacturing a display window includes preparing a mother substrate, performing a salt treatment on the mother substrate to form a silicon-rich layer in a surface of the mother substrate to a first depth from the surface of the mother substrate, and removing the silicon-rich layer, wherein the first depth is greater than a depth of any cracks in the surface of the mother substrate, and a ratio of silicon content in the silicon-rich layer to a silicon content in the mother substrate is 1.2 to 1.4.

Abstract: Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.

Abstract: A carrier apparatus includes an article including a first major surface, a second major surface, a thickness between the first major surface and the second major surface, and an outer edge extending across the thickness between the first major surface and the second major surface. The carrier apparatus includes a coating including a central portion disposed on the first major surface of the article and an outer exposed portion disposed on the outer edge of the article, and a gasket including a first surface contacting the coating. An outer interface between the first surface of the gasket and the coating defines an outer boundary isolating the central portion of the coating from the outer exposed portion of the coating. Methods of processing a carrier apparatus to remove at least a portion of the coating from the article are also provided.

Abstract: Laminated glass for automobile windshield includes: a first and a second glass plate facing each other, and an intermediate film disposed between the glass plates and including a plurality of core layers and a plurality of skin layers alternately laminated. The plurality of core layers have a glass transition point of lower than 15° C. The plurality of skin layers have a glass transition point of 15° C. or higher. The plurality of core layers include two or more core layers. The laminated glass has a maximum degree of unevenness of 3 ?m or less in a test area A.

Abstract: Apparatus, systems and methods for increasing the strength of glass are disclosed. The use of multi-bath chemical processing for a glass article can facilitate controlled chemical strengthening. Through multi-bath (or multi-step) chemical processing, differing levels of strengthening can be achieved for different portion of glass articles. The multi-bath chemical processing can be achieved through the use of successive chemical baths. Accordingly, glass articles that have undergone multi-bath chemical processing are able to be not only thin but also sufficiently strong and resistant to damage. The strengthened glass articles are well suited for use in consumer products, such as consumer electronic devices (e.g., portable electronic devices). In one embodiment, the glass member can pertain to a glass cover for a housing of an electronic device.

Abstract: A scratch-resistant glass substrate is prepared by forming a hard, scratch-resistant layer over a major surface of the substrate. The layer is formed from an inorganic material such as a metal oxide, metal nitride, metal carbide, or metal boride using, for example, physical vapor deposition such as reactive or non-reactive sputtering at a process temperature of less than 500° C. The inorganic layer is resistant to micro-ductile scratching, which can safeguard the visible appearance of the glass substrate in use. The glass substrate can include chemically-strengthened glass.

Abstract: The magnetic tape includes a non-magnetic support; a magnetic layer including a ferromagnetic powder and a binding agent on one surface of the non-magnetic support; and a back coating layer including a non-magnetic powder and a binding agent on the other surface of the non-magnetic support, in which a center line average surface roughness Ra measured regarding a surface of the back coating layer is equal to or smaller than 7.0 nm, and a difference (Safter?Sbefore) between a spacing Safter measured by optical interferometry regarding the surface of the back coating layer after ethanol cleaning and a spacing Sbefore measured by optical interferometry regarding the surface of the back coating layer before ethanol cleaning is greater than 0 nm and equal to or smaller than 15.0 nm.

Abstract: To provide a method for tempering glass to obtain tempered glass having high surface quality and a deep compression stress layer. The present invention relates to a method for tempering a glass plate comprising a preparation step of preparing a glass plate having a surface temperature of at most the strain point, an internal heating step of heating the internal temperature of the glass plate to be at least the annealing point, while maintaining the surface temperature of the glass plate within 10 minutes, or to be at most the strain point, and a cooling step of cooling the glass plate.

Abstract: In one aspect, a method for use in preparing a glass includes performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt. In another aspect, a glass is prepared at least in part by performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt.

Abstract: A display device includes a first substrate, a first emission layer disposed on the first substrate and emitted by a top emission type, a second substrate facing the first substrate and covering the first substrate, and a second emission layer disposed under the second substrate and emitted by a bottom emission type, wherein a portion of the first emission layer and a portion of the second emission layer.

Abstract: A magnetic-disk glass substrate capable of suppressing turbulence of air flow in a vicinity of an outer circumferential side edge portion of the magnetic disk and suppressing disk flutter is provided. This magnetic-disk glass substrate includes a pair of main surfaces, a side wall surface formed on an outer circumferential side edge surface, and chamfered surfaces interposed between the side wall surface and the main surfaces, respectively. The side wall surface has a roundness of 1.5 ?m or less. A difference in radius between an inscribed circle and a circumcircle of a plurality of outlines of the side wall surface at a plurality of positions that include a central position of the magnetic-disk glass substrate in a thickness direction and are different from each other in the thickness direction is 5 ?m or less.

Abstract: Chemically-strengthened thin glass having modified curvature and a method for making the same.

Abstract: A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which the glass has a surface roughness (Ra) of 0.20 nm or higher, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (?m), a surface strength F (N) measured by a ball-on-ring test under the following conditions is (F?1500×t2) relative to a sheet thickness t (mm) of the glass, and a surface of the glass has no polishing flaw: Y=aX+b??(I) in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H2O, mol/L); X: depth from the outermost surface of the glass (?m); a: ?0.270 to ?0.005; and b: 0.020 to 0.220.

Abstract: A system and method for making an edge section of a thin, high purity fused silica glass sheet. The method includes a step of directing a laser to melt through the glass sheet with localized heating of a narrow portion of the glass sheet to form an edge section of the glass sheet, and continuing the edge section to form a closed loop defining a perimeter of the glass sheet. The method further includes rapidly cooling the glass sheet through the glass transition temperature as the melted glass of the edge section contracts and/or solidifies to form an unrefined-bullnose shape extending between first and second major surfaces of the glass sheet.

Abstract: A glass is disclosed that is particularly suitable as pharmaceutical packing medium and as a chemically pre-stressable glass comprising at least the following components (in mol-% on oxide basis): 64-77 SiO2, 5-14 Al2O3, 4-12 Na2O, 1-12 CaO, 0-14 MgO, 0 -2 ZrO2, 0-4.5 TiO2, wherein the ratio Al2O3/Na2O?1, wherein the ratio Al2O3/CaO?1.5, and wherein the total content SiO2+Al2O3<82 mol-%. Preferably, a working temperature T4 of less than 1350° C. and a hydrolytic resistance according to DIN ISO 719 HGB1 and according to ISO 720 HGA are obtained.

Abstract: A display device includes a first substrate, a first emission layer disposed on the first substrate and emitted by a top emission type, a second substrate facing the first substrate and covering the first substrate, and a second emission layer disposed under the second substrate and emitted by a bottom emission type, wherein a portion of the first emission layer and a portion of the second emission layer.

Abstract: A method of performing ion exchange of a thin, flexible glass substrate having an average thickness equal to or less than about 0.3 mm to chemically strengthen the glass substrate is disclosed. The chemically strengthened glass substrate comprises a first compressive stress layer having a first depth of layer, and a second compressive stress layer having a second depth of layer, the first and second stress layers being separated by a layer of tensile stress. A laminated article comprising the chemically strengthened glass substrate is also described.

Abstract: A method of chemically strengthening a glass. The method includes heating an ion exchange solution to a temperature less than about 360° C., and contacting the glass and the strengthening solution at the temperature for a duration from about 0.5 hours to about 24 hours. The ion exchange solution includes a primary nitrate and at least one monovalent or divalent cation nitrate component in an amount from about 1 wt. % to about 10 wt. %.

Abstract: A method of manufacturing a laminated glass article is disclosed that includes forming a laminated glass article with at least one glass cladding layer and a glass core layer adhered to the glass cladding layer. The glass core layer is amenable to crystallization and optionally has a viscosity amenable to forming by a fusion lamination method. The method further includes removing a portion of the laminated glass article such that the glass core layer is exposed on at least one edge of the laminated glass article, and crystallizing at least a portion of the exposed glass core layer. A crystallized or semi-crystallized surface of the exposed glass core layer has a lower CTE than a remainder of the glass core layer. A laminated glass article and a glass article having a crystalline or semi-crystalline surface portion that is integral with a bulk of the glass body are also disclosed.

Abstract: Apparatus, systems and methods for improving strength of a thin glass member for an electronic device are disclosed. In one embodiment, the glass member can have improved strength by using multi-bath chemical processing. The multi-bath chemical processing allows greater levels of strengthening to be achieved for glass member. In one embodiment, the glass member can pertain to a glass cover for a housing of an electronic device.

Abstract: Certain example embodiments relate to an improved method of strengthening glass substrates (e.g., soda lime silica glass substrates). In certain examples, a glass substrate may be chemically strengthened by creating an electric field within the glass. In certain cases, the chemical tempering may be performed by surrounding the substrate by a plasma including certain ions, such as Li+, K+, Mg2+, and/or the like. In some cases, these ions may be forced into the glass substrate due to the half-cycles of the electric field generated by the electrodes that formed the plasma. This may advantageously chemically strengthen a glass substrate on a substantially reduced time scale. In other example embodiments, an electric field may be set in a float bath such that sodium ions are driven from the molten glass ribbon into the tin bath, which may advantageously result in a stronger glass substrate with reduced sodium content.

Abstract: Certain example embodiments relate to an improved method of strengthening glass substrates (e.g., soda lime silica glass substrates). In certain examples, a glass substrate may be chemically strengthened by creating an electric field within the glass. In certain cases, the chemical tempering may be performed by surrounding the substrate by a plasma including certain ions, such as Li+, K+, Mg2+, and/or the like. In some cases, these ions may be forced into the glass substrate due to the half-cycles of the electric field generated by the electrodes that formed the plasma. This may advantageously chemically strengthen a glass substrate on a substantially reduced time scale. In other example embodiments, an electric field may be set in a float bath such that sodium ions are driven from the molten glass ribbon into the tin bath, which may advantageously result in a stronger glass substrate with reduced sodium content.

Abstract: A glass sealing sheet comprising a glass core layer having a first side and a second side, a first cladding layer bonded to the first side of the glass core layer, and/or a second cladding layer bonded to the second side of the glass core layer. The first cladding layer is comprises a glass composition that is absorbing of radiation over at least a portion of an emission wavelength range.

Abstract: A chemically strengthened glass having a compressive stress layer formed in a surface layer thereof according to an ion exchange method, in which the glass has a surface roughness (Ra) of 0.20 nm or higher, a hydrogen concentration Y in a region to a depth X from an outermost surface of the glass satisfies the following relational equation (I) at X=from 0.1 to 0.4 (?m), a surface strength F (N) measured by a ball-on-ring test under the following conditions is (F?1500×t2) relative to a sheet thickness t (mm) of the glass, and a surface of the glass has no polishing flaw: Y=aX+b??(I) in which meanings of respective symbols in the equation (I) are as follows: Y: hydrogen concentration (as H2O, mol/L); X: depth from the outermost surface of the glass (?m); a: ?0.270 to ?0.005; and b: 0.020 to 0.220.

Abstract: A method of making an antimicrobial article including the steps: providing an article having a first surface and ion-exchangeable metal ions, a strengthening bath comprising ion-exchanging metal ions larger in size than the ion-exchangeable metal ions, and an antimicrobial bath comprising antimicrobial ions, ion-exchangeable metal ions and ion-exchanging ions; submersing the article in the strengthening bath to exchange ion-exchangeable metal ions with ion-exchanging metal ions in the strengthening bath to form a compressive stress region extending from the first surface to a first depth; forming a layer on the first surface arranged over the compressive stress region and defining a second surface; and submersing the article and the layer in the antimicrobial bath to exchange ion-exchangeable and ion-exchanging metal ions in the compressive stress region with antimicrobial ions to impart an antimicrobial region with antimicrobial ions extending from the second surface of the layer to a second depth.

Abstract: Methods for compensating for the warp exhibited by three-dimensional glass covers as a result of ion exchange strengthening are provided. The methods use a computer-implemented model to predict/estimate changes to a target three-dimensional shape for the 3D glass cover as a result of ion exchange strengthening. The model includes the effects of ion exchange through the edge of the 3D glass cover. In an embodiment, the inverse of the predicted/estimated changes is used to produce a compensated (corrected) mold which produces as-molded parts which when subjected to ion exchange strengthening have shapes closer to the target shape than they would have had if the mold had not been compensated (corrected).

Abstract: A scratch-resistant glass substrate is prepared by forming a hard, scratch-resistant layer over a major surface of the substrate. The layer is formed from an inorganic material such as a metal oxide, metal nitride, metal carbide, or metal boride using, for example, physical vapor deposition such as reactive or non-reactive sputtering at a process temperature of less than 500° C. The inorganic layer is resistant to micro-ductile scratching, which can safeguard the visible appearance of the glass substrate in use. The glass substrate can include chemically-strengthened glass.

Abstract: A method of making a strengthened glass article. The method includes altering the glass structure and subsequently creating a compressive layer extending from the surface of the glass to a depth of layer. In some embodiments, the structure is altered by heat treating the glass at a temperature that is less than the annealing point of the glass, and the compressive layer is formed by ion exchange. A strengthened glass article made by the method is also provided.

Abstract: There is disclosed a method for chemically treating a display glass substrate by treating at least one surface of the glass substrate with a heated solution containing HCl to form a depletion layer at the surface and under the surface of the glass substrate. The disclosure also relates to display glass substrates containing the depletion layer made by the disclosed process. In addition, the disclosure relates to methods of making thin-film transistors (“TFTs”) on these display glass substrates by depositing a Si layer directly on the chemically treated surface of the glass substrate, and annealing the Si layer to form polycrystalline silicon.

Abstract: A magnetic-disk glass substrate capable of suppressing turbulence of air flow in a vicinity of an outer circumferential side edge portion of the magnetic disk and suppressing disk flutter is provided. This magnetic-disk glass substrate includes a pair of main surfaces, a side wall surface formed on an outer circumferential side edge surface, and chamfered surfaces interposed between the side wall surface and the main surfaces, respectively. The side wall surface has a roundness of 1.5 ?m or less. A difference in radius between an inscribed circle and a circumcircle of a plurality of outlines of the side wall surface at a plurality of positions that include a central position of the magnetic-disk glass substrate in a thickness direction and are different from each other in the thickness direction is 5 ?m or less.