Glass-based articles are disclosed having a thickness in a range of from about 0.2 mm to about 4.0 mm, a first compressive stress layer extending from a first surface of the glass-based article to a first depth of compression that is in a range of from about 5% to about 20% of the thickness, a second compressive stress layer extending from a second surface of the glass-based article to a second depth of compression that is in a range of from about 5% to about 20% of the thickness, wherein the second surface is opposite the first surface, and a central region extending from the first depth of compression to the second depth of compression and having a maximum tensile stress in a range of from about 0.5 MPa to about 20 MPa. Electronic devices comprising the glass-based articles and methods of making glass-based articles are also disclosed.

Glass-based articles are disclosed having a thickness in a range of from about 0.2 mm to about 4.0 mm, a first compressive stress layer extending from a first surface of the glass-based article to a first depth of compression that is in a range of from about 5% to about 20% of the thickness, a second compressive stress layer extending from a second surface of the glass-based article to a second depth of compression that is in a range of from about 5% to about 20% of the thickness, wherein the second surface is opposite the first surface, and a central region extending from the first depth of compression to the second depth of compression and having a maximum tensile stress in a range of from about 0.5 MPa to about 20 MPa. Electronic devices comprising the glass-based articles and methods of making glass-based articles are also disclosed.

Disclosed is a lithium zirconium-based aluminosilicate glass, comprising the following components by mass percentage: 50%-72% of SiO.sub.2, 10%-27% of Al.sub.2O.sub.3, 0.1%-10.0% of B.sub.2O.sub.3, 2%-10% of Li.sub.2O, 4%-15% of Na.sub.2O, 0.1%-5.0% of ZrO.sub.2, and 0-4% of K.sub.2O, wherein the total mass percentage of Li.sub.2O, Na.sub.2O and K.sub.2O is ≥9%, and the ratio of the mass of Li.sub.2O to the total mass of Li.sub.2O, Na.sub.2O and K.sub.2O is (0.22-0.48):1.

Disclosed is a lithium zirconium-based aluminosilicate glass, comprising the following components by mass percentage: 50%-72% of SiO.sub.2, 10%-27% of Al.sub.2O.sub.3, 0.1%-10.0% of B.sub.2O.sub.3, 2%-10% of Li.sub.2O, 4%-15% of Na.sub.2O, 0.1%-5.0% of ZrO.sub.2, and 0-4% of K.sub.2O, wherein the total mass percentage of Li.sub.2O, Na.sub.2O and K.sub.2O is ≥9%, and the ratio of the mass of Li.sub.2O to the total mass of Li.sub.2O, Na.sub.2O and K.sub.2O is (0.22-0.48):1.

A compound comprising phosphorus atoms and sulfur atoms as constituent elements and having a peak in Raman spectroscopy, the peak being attributable to a disulfide bond bonding between two phosphorus atoms.

The present disclosure relates to a sensor element for a potentiometric sensor, including a substrate and an ion-selective enamel layer arranged on the substrate. The substrate has at least one region which is electroconductively connected to the ion-selective enamel layer. The region of the substrate, which is electroconductively connected to the sensor layer, is made of a copper-based alloy having a mass fraction of at least 60% of copper.

To provide a crystallized glass substrate including a surface with a compressive stress layer, in which a stress depth DOL.sub.zero of the compressive stress layer, at which the compressive stress is 0 MPa, is 45 to 200 μm, a compressive stress CS on an outermost surface of the compressive stress layer is 400 to 1400 MPa, and CS×DOL.sub.zero, which is a product of the compressive stress CS on the outermost surface and the stress depth DOL.sub.zero (μm), is 4.8×10.sup.4 or more.

To provide a crystallized glass substrate including a surface with a compressive stress layer, in which a stress depth DOL.sub.zero of the compressive stress layer, at which the compressive stress is 0 MPa, is 45 to 200 μm, a compressive stress CS on an outermost surface of the compressive stress layer is 400 to 1400 MPa, and CS×DOL.sub.zero, which is a product of the compressive stress CS on the outermost surface and the stress depth DOL.sub.zero (μm), is 4.8×10.sup.4 or more.

A glass composition comprises: 50.0 mol % to 70.0 mol % SiO.sub.2; 10.0 mol % to 25.0 mol % Al.sub.2O.sub.3; 0.0 mol % to 5.0 mol % P.sub.2O.sub.5; 0.0 mol % to 10.0 mol % B.sub.2O.sub.3; 5.0 mol % to 15.0 mol % Li.sub.2O; 1.0 mol % to 15.0 mol % Na.sub.2O; and 0.0 mol % to 1.0 mol % K.sub.2O. The sum of all alkali oxides, R.sub.2O, 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 Al.sub.2O.sub.3 and R.sub.2O 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≤(Al.sub.2O.sub.3—(R.sub.2O+RO))/Li.sub.2O≤0.3.

A glass composition comprises: 50.0 mol % to 70.0 mol % SiO.sub.2; 10.0 mol % to 25.0 mol % Al.sub.2O.sub.3; 0.0 mol % to 5.0 mol % P.sub.2O.sub.5; 0.0 mol % to 10.0 mol % B.sub.2O.sub.3; 5.0 mol % to 15.0 mol % Li.sub.2O; 1.0 mol % to 15.0 mol % Na.sub.2O; and 0.0 mol % to 1.0 mol % K.sub.2O. The sum of all alkali oxides, R.sub.2O, 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 Al.sub.2O.sub.3 and R.sub.2O 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≤(Al.sub.2O.sub.3—(R.sub.2O+RO))/Li.sub.2O≤0.3.