Abstract: In embodiments, a glass includes from 45 mol % to 70 mol % SiO2; from 11.5 mol % to 25 mol % Al2O3; from 2 mol % to 20 mol % Li2O; from greater than 0 mol % to 10 mol % Na2O; from 9 mol % to 19 mol % MgO; from 4 mol % ZrO2; and from 0 mol % to 0.5 mol % TiO2. In other embodiments, a glass includes from 45 mol % to 70 mol % SiO2; from 4 mol % to 25 mol % Al2O3; from 5 mol % to 20 mol % Li2O; from 0.1 mol % to 10 mol % Na2O; from 6 mol % to 25 mol % MgO; from 0.1 mol % to 4 mol % ZrO2; from 0.1 mol % to 5 mol % K2O; and from 0.05 mol % to 0.5 mol % SnO2.

Abstract: A glass composition includes: 50 mol % to 69 mol % SiO2; 12.5 mol % to 25 mol % Al2O3; 0 mol % to 8 mol % B2O3; greater than 0 mol % to 4 mol % CaO; greater than 0 mol % to 17.5 mol % MgO; 0.5 mol % to 8 mol % Na2O; 0 mol % to 2.5 mol % La2O3; and greater than 8 mol % to 18 mol % Li2O, wherein (Li2O+Na2O+MgO)/Al2O3 is from 0.9 to less than 1.3; and Al2O3+MgO+Li2O+ZrO2+La2O3+Y2O3 is from greater than 23 mol % to less than 50 mol %. The glass composition may be characterized by at least one of the following: a K1C value measured by a chevron short bar method of at least 0.75; and a K1C value measured by a double torsion method of at least 0.8. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product.

Abstract: Foldable substrates and foldable apparatus containing the same have a central portion positioned between a first portion and a second portion. The central portion has a central thickness less than a substrate thickness in the first portion and the second portion. A lithium difference between a central concentration at a central midpoint minus a first concentration of lithium oxide at a first midpoint of the first portion is from 0.2 mol % to 2 mol %. A larger alkali difference between a central concentration at the central midpoint minus a first concentration at the first midpoint is from 0.2 mol % to 2 mol %. A ratio of the lithium difference to the larger alkali difference is from 0.6 to 1.7. Methods includes disposing a diffusion layer over the central portion before chemically strengthening the foldable substrate.

Abstract: Methods of treating a glass substrate including heating the glass substrate at a first temperature for a first period of time from greater than or equal to 1 minute to less than or equal to 2 hours to form a heat-treated glass substrate. The first temperature is less than an annealing point of the glass substrate by from greater than or equal to 10° C. to less than or equal to 150° C. The glass substrate has a substrate thickness from greater than or equal to 25 micrometers to less than or equal to 300 micrometers. Methods further comprise chemically strengthening the heat-treated glass substrate to form a chemically strengthened glass substrate having a first compressive stress region extending from the first major surface to a first depth of compression from greater than or equal to 5 ?m to less than or equal to 30% of the substrate thickness.

Abstract: The disclosure relates to glass compositions having improved thermal tempering capabilities. The disclosed glass compositions have high coefficients of thermal expansion and Young's moduli, and are capable of achieving high surface compressions. A method of making such glasses is also provided.

Abstract: A glass-based article is provided, comprising: greater than or equal to 45.0 mol % and less than or equal to 60.0 mol % SiO2; greater than or equal to 10.0 mol % and less than or equal to 25.0 mol % Al2O3; greater than or equal to 2.0 mol % and less than or equal to 8.0 mol % CaO; greater than or equal to 2.0 mol % and less than or equal to 10.0 mol % B2O3; greater than or equal to 0.2 mol % and less than or equal to 3.0 mol % MgO; greater than or equal to 0.2 mol % and less than or equal to 1.0 mol % SrO; greater than or equal to 0.0 mol % and less than or equal to 15.0 mol % Li2O; greater than or equal to 0.0 mol % and less than or equal to 10.0 mol % Na2O; greater than or equal to 10.0 mol % and less than or equal to 25.0 mol % Li2O+Na2O; wherein the ratio CaO (mol %)/MgO (mol %) is greater than or equal to 2.

Abstract: A glass substrate that includes a plurality of through-glass vias extending through the glass substrate, adjacent through-glass vias being separated by a minimum average distance DM. The glass substrate further including a chemically strengthened region with a depth of layer such that the depth of layer extends from a surface of the glass substrate to a distance within a bulk of the glass substrate, the chemically strengthened region having a higher compressive stress than a remainder of the glass substrate, wherein the depth of layer of the chemically strengthened region is about 30% or less of the distance DM, and wherein a composition of the glass substrate comprises the following components SiO2 from about 65.0 mol % to about 85.0 mol %, Al2O3 from about 3.0 mol % to about 15 mol %, and Li2O from about 1.0 mol % to about 5.0 mol %.

Abstract: A glass article includes SiO2, Al2O3, and Na2O. B2O3+P2O5 may be greater than 0 mol % to 10 mol %. R2O may be from 10 mol % to 20 mol %. R2O—Al2O3 may be from 0 mol % to 10 mol %. RO may be from 0 mol % to 10 mol %. (R2O+RO)—(Al2O3+B2O3) from ?5 mol % to 10 mol %. The glass article may include a ratio of peak compressive stress to Young's modulus greater than or equal to 13, after the glass article is ion exchanged in a 100% KNO3 salt bath at 410° C. for 30 minutes; a Knoop scratch threshold greater than 5 N; a difference between a zirconium breakdown temperature and a liquidus temperature at a 35 kP temperature greater than or equal to ?35° C.; and a 200 P temperature less than or equal to 1720° C.

Abstract: Provided is a glass substrate having low charging properties. The glass substrate is characterized by comprising, in terms of mass %, from 1.7% to less than 9% of B2O3, not more than 0.01% of Li2O, 0.001-0.03% of Na2O, 0.0001-0.007% of K2O, 0.0011-0.035% of Na2O+K2O and more than 0% to 0.4% of SnO2 as glass composition.

Abstract: A method of making a glass includes batching constituents, including silica, alumina, boria, magnesia, quicklime, and strontia, where one or more of the constituents is from “dirty” raw material that includes a relatively large amount of sulfur. The method further includes melting and mixing the batch to make glass having sulfur content but free of blisters, suitable for high performance displays.

Abstract: A glass composition includes: 50 mol % to 69 mol % SiO2; 12.5 mol % to 25 mol % Al2O3; 0 mol % to 8 mol % B2O3; greater than 0 mol % to 4 mol % CaO; greater than 0 mol % to 17.5 mol % MgO; 0.5 mol % to 8 mol % Na2O; 0 mol % to 2.5 mol % La2O3; and greater than 8 mol % to 18 mol % Li2O, wherein (Li2O+Na2O+MgO)/Al2O3 is from 0.9 to less than 1.3; and Al2O3+MgO+Li2O+ZrO2+La2O3+Y2O3 is from greater than 23 mol % to less than 50 mol %. The glass composition may be characterized by at least one of the following: a K1C value measured by a chevron short bar method of at least 0.75; and a K1C value measured by a double torsion method of at least 0.8. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product.

Abstract: A glass composition comprises: 50.0 mol % to 70.0 mol % SiO2; 10.0 mol % to 25.0 mol % Al2O3; 0.0 mol % to 5.0 mol % P2O5; 0.0 mol % to 10.0 mol % B2O3; 5.0 mol % to 15.0 mol % Li2O; 1.0 mol % to 15.0 mol % Na2O; and 0.0 mol % to 1.0 mol % K2O. The sum of all alkali oxides, R2O, present in the glass composition may be in the range from greater than or equal to 11.0 mol % to less than or equal to 23.0 mol %. The sum of Al2O3 and R2Opresent in the glass composition may be in the range from greater than or equal to 26.0 mol % to less than or equal to 40.0 mol %. The glass composition may satisfy the relationship ?0.1?(Al2O3—(R2O+RO))/Li2O?0.3.

Abstract: A glass is provided, comprising: greater than or equal to 50.4 mol % to less than or equal to 60.5 mol % SiO2; greater than or equal to 16.4 mol % to less than or equal to 19.5 mol % Al2O3; greater than or equal to 2.4 mol % to less than or equal to 9.5 mol % B2O3; greater than or equal to 0.4 mol % to less than or equal to 7.5 mol % CaO; greater than or equal to 7.4 mol % to less than or equal to 11.5 mol % Li2O; greater than 0.4 mol % to less than or equal to 5.5 mol % Na2O; greater than 0.1 mol % to less than or equal to 1.5 mol % ZrO2; and greater than or equal to 0 mol % to less than or equal to 2.5 mol % Y2O3. Related articles and methods are also provided.

Abstract: A glass composition comprises: 50.0 mol % to 70.0 mol % SiO2; 10.0 mol % to 25.0 mol % Al2O3; 0.0 mol % to 5.0 mol % P2O5; 0.0 mol % to 10.0 mol % B2O3; 5.0 mol % to 15.0 mol % Li2O; 1.0 mol % to 15.0 mol % Na2O; and 0.0 mol % to 1.0 mol % K2O. The sum of all alkali oxides, R2O, present in the glass composition may be in the range from greater than or equal to 11.0 mol % to less than or equal to 23.0 mol %. The sum of Al2O3 and R2O present in the glass composition may be in the range from greater than or equal to 26.0 mol % to less than or equal to 40.0 mol %. The glass composition may satisfy the relationship ?0.1?(Al2O3?(R2O+RO))/Li2O?0.3.

Abstract: A glass composition includes: from 55.0 mol % to 70.0 mol % SiO2; from 12.0 mol % to 20.0 mol % Al2O3; from 5.0 mol % to 15.0 mol % Li2O; and from 4.0 mol % to 15.0 mol % Na2O. The glass composition has the following relationships ?8.00 mol % ?R2O+RO?Al2O3?B2O3?P2O5??1.75 mol %, 9.00?(SiO2+Al2O3+Li2O)/Na2O, and (Li2O+Al2O3+P2O3)/(Na2O+B2O3)?3.50. The glass composition may be used in a glass article or a consumer electronic product.

Abstract: A glass ribbon includes a first major surface extending along a first plane. The glass ribbon includes a second major surface extending along a second plane substantially parallel to the first plane. A first thickness is defined between the first major surface and the second major surface along a thickness direction perpendicular to the first major surface. The first thickness is within a range from about 25 ?m to about 125 ?m. An edge surface extends between the first plane and the second plane. The edge surface comprises a height in the thickness direction that is less than the first thickness. Methods of manufacturing a glass ribbon are also provided.

Abstract: A glass composition is provided that is capable of being ion exchanged to produce high central tension values. The glass composition includes SiO2, Li2O, and CaO. Glass-based articles formed by ion-exchanging glass-based substrates formed from the glass composition are also provided. The glass-based articles are characterized by a maximum central tension of greater than or equal to 150 MPa, and this maximum central tension value may be achieved by ion exchanging in a sodium containing molten salt bath. The glass-based articles may be utilized in consumer electronic devices.

Abstract: A glass composition includes: from 55.0 mol % to 70.0 mol % SiO2; from 12.0 mol % to 20.0 mol % Al2O3; from 5.0 mol % to 15.0 mol % Li2O; and from 4.0 mol % to 15.0 mol % Na2O. The glass composition has the following relationships ?8.00 mol %?R2O+RO?Al2O3?B2O3?P2O5??1.75 mol %, 9.00?(SiO2+Al2O3+Li2O)/Na2O, and (Li2O+Al2O3+P2O5)/(Na2O+B2O3)?3.50. The glass composition may be used in a glass article or a consumer electronic product.

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

Abstract: The disclosure relates to glass compositions with high coefficients of thermal expansion and low fracture toughness designed for thermal tempering. These glasses are ideally suited to produce a “dicing” pattern when thermally tempered, even when thin (<3 mm). Disclosed glasses have high thermal expansions at low and high temperatures to produce increased temper stresses once quenched, coupled with low fracture toughness which promotes crack bifurcation and enhanced frangibility. Methods of making such glasses are also provided.