Abstract: A glass composition includes from 55.0 mol % to 75.0 mol % SiO2; from 8.0 mol % to 20.0 mol % Al2O3; from 3.0 mol % to 15.0 mol % Li2O; from 5.0 mol % to 15.0 mol % Na2O; and less than or equal to 1.5 mol % K2O. The glass composition has the following relationships: Al2O3+Li2O is greater than 22.5 mol %, R2O+RO is greater than or equal to 18.0 mol %, R2O/Al2O3 is greater than or equal to 1.06, SiO2+Al2O3+B2O3+P2O5 is greater than or equal to 78.0 mol %, and (SiO2+Al2O3+B2O3+P2O5)/Li2O is greater than or equal to 8.0. The glass composition may be used in a glass article or a consumer electronic product.

Abstract: A colored glass article includes greater than or equal to 50 mol % and less than or equal to 80 mol % SiO2; greater than or equal to 7 mol % and less than or equal to 25 mol % Al2O3; greater than or equal to 1 mol % and less than or equal to 15 mol % B2O3; greater than or equal to 5 mol % and less than or equal to 20 mol % Li2O; greater than or equal to 0.5 mol % and less than or equal to 15 mol % Na2O; greater than 0 mol % and less than or equal to 1 mol % K2O; and greater than or equal to 1×10?6 mol % and less than or equal to 1 mol % Au. R2O—Al2O3 is greater than or equal to ?5 mol % and less than or equal to 7 mol %, R2O being the sum of Li2O, Na2O, and K2O.

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: A colored glass article may include 50-80 mol % SiO2; 7-20 mol % Al2O3; 1-35 mol % R2O, wherein R2O comprises at least one of Li2O, Na2O, and K2O; 1×10?6-10 mol % of a colorant, wherein the colorant comprises at least one of Cr2O3, Au, Ag, CuO, NiO, Co3O4, TiO2, CeO2; and 12-24 mol % of Al2O3+MgO+CaO+ZnO. The colored glass article may have a transmittance color coordinate in the CIELAB color space with an L* value of 55 to 96.5. The colored glass article may have a compressive stress profile with a depth of compression ?0.15t, a thickness t from 0.4 mm-5 mm, a compressive stress ?200 MPa, and a central tension ?60 MPa. The colored glass article may have a dielectric constant from 5.6 to 6.4 over the frequency range from 10 GHz to 60 GHz.

Abstract: A glass composition includes greater than or equal to 50 mol % and less than or equal to 70 mol % SiO2; greater than or equal to 10 mol % and less than or equal to 20 mol % Al2O3; greater than or equal to 1 mol % and less than or equal to 10 mol % B2O3; greater than or equal to 7 mol % and less than or equal to 14 mol % Li2O; greater than 0 mol % and less than or equal to 8 mol % Na2O; greater than 0 mol % and less than or equal to 1 mol % K2O; greater than or equal to 0 mol % and less than or equal to 7 mol % CaO; greater than or equal to 0 mol % and less than or equal to 8 mol % MgO; and greater than or equal to 0 mol % and less than or equal to 8 mol % ZnO. R2O+R?O is less than or equal to 25 mol %, wherein R2O is the sum of Li2O, Na2O, and K2O and R?O is the sum of CaO, MgO, and ZnO. The glass composition includes at least one of NiO+CO3O4+Cr2O3+CuO is greater than or equal to 0.001 mol %, CeO2 is greater than or equal to 0.1 mol %, and TiO2 is greater than or equal to 0.1 mol %.

Abstract: A colored glass article includes greater than or equal to 50 mol % and less than or equal to 70 mol % SiO2, greater than or equal to 10 mol % and less than or equal to 17.5 mol % Al2O3, greater than or equal to 3 mol % and less than or equal to 10 mol % B2O3, greater than or equal to 8.8 mol % and less than or equal to 14 mol % Li2O, greater than or equal to 1.5 mol % and less than or equal to 8 mol % Na2O, and greater than 0 mol % and less than or equal to 2 mol % Cr2O3. R2O+RO?Al2O3 is greater than or equal to 0.5 mol % and less than or equal to 6 mol %. Al2O3+MgO+ZnO is greater than or equal to 12 mol % and less than or equal to 22 mol %.

Abstract: A colored glass article includes from 40 mol % to 70 mol % SiO2; from 8 mol % to 20 mol % Al2O3; from 1 mol % to 10 mol % B2O3; from 1 mol % to 20 mol % Li2O; from 1 mol % to 15 mol % Na2O; from 0 mol % to 8 mol % MgO; from 0 mol % to 5 mol % ZnO; and from 0.0005 mol % to 1 mol % Au. MgO+ZnO is from 0.1 mol % to 6 mol %.

Abstract: A glass composition includes greater than or equal to 60 mol % and less than or equal to 85 mol % SiO2; greater than or equal to 0.5 mol % and less than or equal to 20 mol % Al2O3; greater than or equal to 0 mol % and less than or equal to 15 mol % Li2O; greater than or equal to 0.5 mol % and less than or equal to 25 mol % Na2O; greater than or equal to 0.1 mol % and less than or equal to 20 mol % 1(20; greater than or equal to 0 mol % and less than or equal to 10 mol % CaO; greater than or equal to 0 mol % and less than or equal to 10 mol % MgO; and greater than or equal to 0.005 mol % and less than or equal to 0.5 mol % Au.

Abstract: A glass composition includes: greater than or equal to 55 mol % and less than or equal to 70 mol % SiO2; greater than or equal to 14 mol % and less than or equal to 25 mol % Al2O3; greater than or equal to 0 mol % B203; greater than or equal to 0 mol % P2O5; greater than or equal to 0 mol % and less than or equal to 10 mol % Li2O; greater than or equal to 6.5 mol % and less than or equal to 20 mol % Na2O; greater than or equal to 0 mol % K2O; greater than or equal to 0.1 mol % and less than or equal to 4.5 mol % MgO; greater than or equal to 0 mol % CaO; and greater than or equal to 0 mol % SrO. The sum of Li2O, Na2O, and K2O in the glass composition may be greater than or equal to 6.5 mol % and less than or equal to 22 mol %. The glass composition may satisfy the relationship Al2O3*(2.94)+B2O3*(?0.58)+P2O5*(?3.87)+Li2O*(5.01)+Na2O*(1.89)+K2O*(?2.03) is greater than 100.

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

Abstract: Embodiments are directed to glass articles which are resistant to UV photodarkening, the glass articles having a thickness ?1.3 mm and comprise UV absorbers such as Ti, V, Mn, Fe, Cu, Ce, Ge, Mo, Cr, Co and Ni, and combinations thereof, or alternatively comprising ZnO or 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: Glass-based articles comprise stress profiles providing improved scratch resistance. A glass-based article comprises a lithium aluminosilicate composition and 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. The article comprises sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article and a spike depth of layer that is greater than or equal to 4 micrometers and less than or equal to 8 micrometers. The article may comprise an average compressive stress of greater than or equal to 150 MPa over a depth from 15 micrometers to 40 micrometers.

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 are provided that exhibit improved drop performance. The relationship between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved drop performance.

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

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

Abstract: Glass articles that are resistant to coloration when exposed to ultraviolet light or plasma cleaning processes. The glass articles comprise or consist of an alkali aluminosilicate glass containing from about 0.1 mol % to about 1 mol % of at least one of ZrO2, Sb2O3, and Nb2O5; and less than about 400 ppm each of oxides of titanium, iron, germanium, cerium, nickel, cobalt, and europium.

Abstract: Glass compositions are provided with low Young's modulus and compatibility with slot drawing techniques, due at least in part to liquidus viscosity and liquidus temperature. When ion-exchanged the resulting glass articles are capable of exhibiting a ratio of a peak compressive stress value in MPa to a Young's modulus value in GPa of 13.0 or more. The glass articles may have a peak compressive stress value in a range of 850 MPa to 1400 MPa. The glass articles are suitable for various high-strength applications, including cover glass applications that experience significant bending stresses during use, for example, cover glasses for flexible displays.