A glass manufacturing apparatus includes a glass ribbon gripping device including a first column of jaw clamps spaced from one another along a first clamp path extending in a glass ribbon travel direction of the glass manufacturing apparatus. The glass manufacturing apparatus includes a second column of jaw clamps spaced from one another along a second clamp path extending in the glass ribbon travel direction of the glass manufacturing apparatus. The first column of jaw clamps and the second column of jaw clamps are spaced apart in a lateral direction perpendicular to the glass ribbon travel direction. Additionally, methods of manufacturing a glass ribbon with the glass manufacturing apparatus are provided.

Embodiments of glass articles exhibiting a sag temperature in a range from about 600° C. to about 700° C. are disclosed. In one or more embodiments, the glass article includes a glass composition including SiO.sub.2 in an amount in a range from about 66 mol % to about 80 mol %, Al.sub.2O.sub.3 in an amount in a range from about 2 mol % to about 15 mol %, B.sub.2O.sub.3 in an amount in a range from about 0.9 mol % to about 15 mol %, P.sub.2O.sub.5 in a non-zero amount up to and including 7.5 mol %, Li.sub.2O in an amount from about 0.5 mol % to about 12 mol %, and Na.sub.2O in an amount from about 6 mol % to about 15 mol %. Laminates including the glass articles and methods for forming such laminates are also disclosed.

A laminated glass article includes at least a first layer, a second layer in direct contact with the first layer, and an optical property difference between the first layer and the second layer. The optical property difference includes at least one of: (a) a transmission profile difference between a transmission profile of the first and second layers in a wavelength range from 200 nm to 2500 nm; or (b) a light-polarizing difference, whereby the second layer is light-polarizing with respect to electromagnetic irradiation in the wavelength range from 200 nm to 2500 nm; or (c) a refractive index difference between refractive indices of the first and second layers of at least 0.005, wherein one layer includes a base glass composition and the other layer includes the base glass composition and a dopant in an amount sufficient to cause the refractive index difference.

A standalone lithium ion-conductive solid electrolyte including a freestanding inorganic vitreous sheet of sulfide-based lithium ion conducting glass is capable of high performance in a lithium metal battery by providing a high degree of lithium ion conductivity while being highly resistant to the initiation and/or propagation of lithium dendrites. Such an electrolyte is also itself manufacturable, and readily adaptable for battery cell and cell component manufacture, in a cost-effective, scalable manner.

Described herein are glass forming apparatuses with cooled muffle assemblies and methods for using the same to form glass ribbons. According to one embodiment, a muffle assembly for a fusion forming apparatus may include a muffle frame comprising a back wall, a front wall opposite the back wall, and a pair of sidewalls joining the front wall to the back wall in a closed-loop. At least one first cooling tube may extend through the back wall and the front wall across the closed-loop. At least one second cooling tube may extend through the back wall and the front wall across the closed loop such that the at least one second cooling tube is spaced apart from and parallel with the at least one first cooling tube.

A method of reducing bubble lifetime on the free surface of a volume of molten glass contained within or flowing through a vessel including a free volume above the free surface, thereby minimizing re-entrainment of the bubbles back into the volume of molten glass and reducing the occurrence of blisters in finished glass products.

A glass manufacturing apparatus can include an elongated engagement surface rotatable through a rotation angle between a scoring position and a cleaning position. The glass manufacturing apparatus can further include a scoring device to score the glass substrate when the elongated engagement surface is positioned in the scoring position. The glass manufacturing apparatus can further include a cleaning device to clean the elongated engagement surface when the elongated engagement surface is positioned in the cleaning position. In further embodiments, a method of scoring a glass substrate can include, after producing a score line while the elongated engagement surface is positioned in the scoring position, rotating the elongated engagement surface from the scoring position to a cleaning position. The method can further include cleaning the elongated engagement surface while the elongated engagement surface is positioned in the cleaning position.

The present invention relates to a glass substrate for a high-frequency device, which includes SiO.sub.2 as a main component, the glass substrate having a total content of alkali metal oxides in the range of 0.001-5% in terms of mole percent on the basis of oxides, the alkali metal oxides having a molar ratio represented by Na.sub.2O/(Na.sub.2O+K.sub.2O) in the range of 0.01-0.99, and the glass substrate having a total content of Al.sub.2O.sub.3 and B.sub.2O.sub.3 in the range of 1-40% in terms of mole percent on the basis of oxides and having a molar ratio represented by Al.sub.2O.sub.3/(Al.sub.2O.sub.3+B.sub.2O.sub.3) in the range of 0-0.45, in which at least one main surface of the glass substrate has a surface roughness of 1.5 nm or less in terms of arithmetic average roughness Ra, and the glass substrate has a dielectric dissipation factor at 35 GHz of 0.007 or less.

A method for forming a glass sheet includes forming a glass ribbon. A robot arm is operated to move an end effector through a preprogrammed cycle. The cycle includes engaging a segment of the glass ribbon with the end effector, separating the engaged segment from the glass ribbon to generate a glass sheet, and moving the glass sheet away from the glass ribbon. The preprogrammed cycle designates predetermined positions of the end effector at predetermined points in time. While the robot arm is operating through the preprogrammed cycle, a parameter indicative of a force being exerted on the glass ribbon by the end effector is sensed. A position of the end effector is altered to differ from the predetermined position at the corresponding point in time when the sensed parameter deviates from a target value. An excessive force applied to the glass ribbon can be reduced in real-time.

Foldable apparatus can comprise a foldable substrate comprising a thickness (T) and a plurality of grooves extending through a first major surface. A groove spacing (Gs) is defined between a pair of grooves. A first groove of the plurality of grooves comprises a groove depth (Gd) and a groove width (Gw). In some embodiments, 7.93-6.19*(Gw/T) −9.52*(Gd/T) +6.05*(Gs/T) <0. In some embodiments, (Gw/T) ≥0.1, (Gs/T) ≤1.5, 0.3≤Gd/T 0.95. In some embodiments, a combined groove volume divided by a central volume can be about 0.3 or more. Methods of making a foldable apparatus comprise drawing a ribbon from a quantity of molten material off a forming device. Methods further comprising impinging a target location of the ribbon traveling in a draw direction with a laser beam to form a groove in the ribbon. In some embodiments, the groove can comprise a plurality of grooves.