Corning Incorporated

Benjamin Zain Hanson

Matthew John Dejneka

Adam James Ellison

Thomas Dale Ketcham

Susan Lee Schiefelbein

Alexander I Priven

James Robert Rustad

Bruce Gardiner Aitken

Rostislav Vatchev Roussev

Sinue Gomez

Mark Alejandro Quesada

William Peter Addiego

Kochuparambil Deenamma Vargheese

Chong Pyung An

Martin Herbert Goller

Michael John Bennett

Tracey Lynn Timmons

Michael Patrick Carson

Jeffrey Scott Davis

Kochuparambil Deenamma Vergheese

The embodiments described herein relate to glass articles that include mechanically durable glass compositions having high liquidus viscosity. The glass articles may include glass compositions having from 50 mol. % to 80 mol. % SiO; from 7 mol. % to 25 mol. % AlO; from 2 mol. % to about 14 mol. % LiO; 0.4 mol. % PO; and less than or equal to 0.5 mol. % ZrO. The quantity (AlO(mol. %)-RO (mol. %)-RO (mol. %)) is greater than zero, where RO (mol. %) is the sum of the molar amounts of LiO, NaO, KO, RbO, and CsO in the glass composition and RO (mol. %) is the sum of the molar amounts of BeO, MgO, CaO, SrO, BaO, and ZnO in the glass composition. A molar ratio of (LiO (mol. %))/(RO (mol. %)) may be greater or equal to 0.5. In embodiments, the glass composition may include BO. The glass compositions are fusion formable and have high damage resistance.

Peraluminous lithium aluminosilicates with high liquidus viscosity

The embodiments described herein relate to glass articles that include mechanically durable glass compositions having high liquidus viscosity. The glass articles may include glass compositions having from 50 mol. % to 80 mol. % SiO; from 7 mol. % to 25 mol. % AlO; from 2 mol. % to about 14 mol. % LiO; 0.4 mol. % PO; and less than or equal to 0.5 mol. % ZrO. The quantity (AlO(mol. %)&#x2212;RO (mol. %)&#x2212;RO (mol. %)) is greater than zero, where RO (mol. %) is the sum of the molar amounts of LiO, NaO, KO, RbO, and CsO in the glass composition and RO (mol. %) is the sum of the molar amounts of BeO, MgO, CaO, SrO, BaO, and ZnO in the glass composition. A molar ratio of (LiO (mol. %))/(RO (mol. %)) may be greater or equal to 0.5. In embodiments, the glass composition may include BO. The glass compositions are fusion formable and have high damage resistance.

A method of making a glass sheet includes exposing a refractory block material comprising at least one multivalent component to a reducing atmosphere for a time and at a temperature sufficient to substantially reduce the at least one multivalent component of the refractory block material. The method also includes flowing molten glass over the refractory block material that has been exposed to the reducing atmosphere while preventing substantial re-oxidation of the at least one multivalent component.

Method of making glass sheets with gas pretreatment of refractory

Isopipes () for making glass sheets using a fusion process are provided. The isopipes are made from alumina materials which have low levels of the elements of group IVB of the periodic chart, i.e., Ti, Zr, and Hf, as well as low levels of Sn. In this way, the alumina isopipes can be used with glasses that contain tin (e.g., as a fining agent or as the result of the use of tin electrodes for electrical heating of molten glass) without generating unacceptable levels of tin-containing defects in the glass sheets, specifically, at the sheets' fusion lines. The alumina isopipes disclosed herein are especially beneficial when used with tin-containing glasses that exhibit low tin solubility, e.g., glasses that have (RO+RO)/AlOratios between 0.9 and 1.1, where, in mole percent on an oxide basis, (RO+RO) is the sum of the concentrations of the glass' alkaline earth and alkali metal oxides and AlOis the glass' alumina concentration.

Alumina isopipes for use with tin-containing glasses

A method of making a glass sheet includes treating a refractory block material comprising at least one multivalent component with a vehicle comprising at least one redox altering component or precursor. The method also includes flowing molten glass over the refractory block material, wherein the treatment of the refractory block material with the vehicle comprising at least one redox altering component or precursor reduces the amount of oxygen production resulting from interaction between the at least one multivalent component and the molten glass.

Method of making glass sheets with vehicle pretreatment of refractory

Ion exchangeable glass compositions that develop concentration profiles and stress profiles that have higher magnitudes of concentration and compressive stress profiles than those provided by the error function (erfc)-shaped compressive stress profile for similar surface concentrations of stress-inducing components such as Kor KO and stresses. The advantaged stress profile is the result of a glass composition that is low in KO (or potassium) in the base glass prior to ion exchange. A glass comprising lower amounts of Kor KO has a stronger dependence of diffusivity on concentration, leading to a non-erfc-shaped concentration profile. Several glass compositions that contain low amounts of Kor KO exhibit this beneficial effect, whereas other glasses containing higher amounts of Kor KO do not exhibit this effect.

Ion exchangeable glass with advantaged stress profile

A glass that is down-drawable and ion exchangeable. The glass has a temperature Twhich the viscosity is 35 kilopoise. Tis less than the breakdown temperature Tof zircon.

Zircon compatible glasses for down draw

Disclosed herein are methods for bonding refractory substrates, such as zircon substrates, without the use of a bonding agent. Exemplary methods include (a) providing a plurality of refractory components, each component having at least one surface to be bonded, (b) polishing each surface to be bonded to a surface roughness (R) of 200 nm or finer, (c) contacting the surfaces to be bonded to form an unbonded refractory substrate, (d) firing the unbonded refractory substrate, and (e) subjecting the surfaces to be bonded to a compressive force during firing. Methods for making refractory forming bodies are also disclosed herein.

Method for bonding zircon substrates

A glass that is down-drawable and ion exchangeable. The glass has a temperature Tat which the viscosity is 35 kilopoise. Tis less than the breakdown temperature Tof zircon.

A method is disclosed for inhibiting oxygen and moisture penetration of a device comprising the steps of depositing a tin phosphate low liquidus temperature (LLT) inorganic material on at least a portion of the device to create a deposited tin phosphate LLT material, and heat treating the deposited LLT material in a substantially oxygen and moisture free environment to form a hermetic seal; wherein the step of depositing the LLT material comprises the use of a resistive heating element comprising tungsten. An organic electronic device is also disclosed comprising a substrate plate, at least one electronic or optoelectronic layer, and a tin phosphate LLT barrier layer, wherein the electronic or optoelectronic layer is hermetically sealed between the tin phosphate LLT barrier layer and the substrate plate. An apparatus is also disclosed having at least a portion thereof sealed with a tin phosphate LLT barrier layer.

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Big Flats, NY, United States of America

Benjamin Zain Hanson