Corning Incorporated

Kenneth Edward Hrdina

Carlos Alberto Duran

Sezhian Annamalai

Richard Michael Fiacco

Steven Bruce Dawes

John Forrest Wight, Jr

Bradley Frederick Bowden

Dana Craig Bookbinder

Michael Henry Wasilewski

Susan Lee Schiefelbein

Ming-Jun Li

Christopher Scott Thomas

Charlene Marie Smith

Pushkar Tandon

Thomas Dale Ketcham

Michael Edward Badding

Robert Sabia

Daniel Raymond Sempolinski

Daniel Robert Boughton

Sinue Gomez-Mower

Yuhui Jin

Dale Robert Powers

Gary Edward Merz

Dell Joseph St Julien

Zhen Song

Lisa Anne Moore

Xinghua Li

Cameron Wayne Tanner

Jacqueline Leslie Brown

Joel P Carberry

Nikolaos Pantelis Kladias

William Joseph Bouton

Eric Lee Miller

C Charles Yu

John Edward Maxon

William Rogers Rosch

Claude L Davis, Jr

Gitimoy Kar

Michael A Mueller

Haitao Zhang

Harrie J Stevens

James Joseph Bernas

Srinivas Vemury

Rostislav Radievich Khrapko

Nikki J Russo

Lisa Ann Hogue

Brent R Mclean

Bradford Giles Ackerman

Stefan Wolfgang Kramel

Jeffery Scott Stone

Chunfeng Zhou

Barada Kanta Nayak

Conor James Walsh

Glenn E Kohnke

Nagaraja Shashidhar

Steven Akin Dunwoody

David Alan Deneka

Richard Dominic Bomba

Bryan Ray Wheaton

Wei Sun

John Michael Jewell

Ulrich Wilhelm Heinz Neukirch

Brian Lee Harper

Ravindra Kumar Akarapu

Tonia Havewala Fletcher

Daniel Arthur Sternquist

Carl William Almgren

Chunzhe C Yu

Barbara L Stainbrook

Ulrich W H Neukirch

John Steele Abbott, Jr

Kai Tod Paul Jarosch

Kimberly Ann Wilbert

Seshian Annamalai

Madison Kathleen Tindle

Yuanjie Jiang

Vincent Matteo Tagliamonti

Tyler John Lucci

Claude L Davis Jr

Seann Bishop

John Edward LaSala

Daniel Joseph Bleaking

John Steele Abbott Jr

Ulrich Neukirch

Bradford G Ackerman

Embodiments described herein are directed to compositions, systems, and processes for strengthening glass articles, which also minimize the concentration of decomposition products in the molten salt baths used in ion exchange processes to extend salt bath life and maintain the chemical durability of strengthened glass articles over time. The salt bath compositions may generally include from 90 wt. % to 99.9 wt. % of one or more alkali or metal salts and from 0.1 wt. % to 10 wt. % of silicic acid aggregates based on the total weight of the salt bath composition.

Salt bath compositions, salt bath systems, and processes for strengthening glass articles

Embodiments of the present disclosure are directed to salt bath systems for strengthening glass articles including a salt bath tank defining a first interior volume enclosed by at least one sidewall; a salt bath composition including an alkali metal salt positioned within the first interior volume; a containment device defining a second interior volume enclosed by at least one sidewall and including a regeneration medium positioned within the second interior volume; and a circulation device positioned proximate to an inlet of the containment device, wherein the circulation device is operable to circulate the salt bath composition through the containment device. Methods for regenerating a molten salt are also disclosed.

Salt bath systems for strengthening glass articles and methods for regenerating molten salt

In some embodiments, a method for processing an optical fiber includes: drawing an optical fiber through a draw furnace, conveying the optical fiber through a flame reheating device downstream from the draw furnace, wherein the flame reheating device comprises one or more burners each comprising: a body having a top surface and an opposing bottom surface, an opening within the body extending from the top surface through the body to the bottom surface, wherein the optical fiber passes through the opening, and one or more gas outlets within the body; and igniting a flammable gas provided by the one or more gas outlets to form a flame encircling the optical fiber passing through the opening, wherein the flame heats the optical fiber by at least 100 degrees Celsius at a heating rate exceeding 10,000 degrees Celsius/second.

Methods and systems for processing optical fiber

A system and method for nitridizing a glass article includes supplying a source of a nitridizing gas including gaseous NHto a glass article supported within a furnace assembly and heating the glass article. In some embodiments, the system includes a handle assembly configured to support the glass article within the furnace assembly and a gas supply conduit carried by the handle and configured to supply the nitridizing gas to the glass article. In some embodiments, a method of nitridizing a glass article includes supplying the nitridizing gas such that a residence time of the nitridizing gas at temperatures greater than 500° C. corresponds to a predetermined time period. In some embodiments, a method of nitridizing a glass article includes supplying the nitridizing gas such that the glass articles is exposed to the nitridizing gas within a contact time t.

System and method for nitrogen doping of a glass article

Methods, apparatuses and systems of manufacturing an optical fiber are disclosed herein. The methods may include heating an optical preform in a draw furnace, drawing an optical fiber from the optical preform, cooling the optical fiber with a slow cooling device, and annealing the optical fiber by passing the optical fiber through an RF plasma heating apparatus.

RF plasma optical fiber annealing apparatuses, systems, and methods of using the same

A method for forming an optical quality glass is provided. The method includes contacting silica soot particles with a basic additive, forming a silica soot compact, and removing the basic additive from the silica soot compact. A method of forming a cladding portion of an optical fiber preform is also provided.

Basic additives for silica soot compacts and methods for forming optical quality glass

A system, having: an RF power source; an RF matching network electrically coupled to the RF power source; an impedance matching circuit electrically coupled to the RF matching network, wherein the impedance matching circuit has a first adjustable capacitor connected in series with the RF matching network and a second adjustable capacitor connected in parallel with the first capacitor; and an inductive process load electrically coupled to the impedance matching circuit.

Systems and methods for optimizing RF plasma power coupling

An optical fiber can include a core comprising silica co-doped with nitrogen and chlorine and an outer cladding surrounding the core. In some aspects, the core can be characterized by an annealing temperature of less than or equal to about 1150&#xb0; C. and/or the core can include a relative refractive index &#x394;in a range of from about 0.15% to about 0.45%.

Optical fiber with nitrogen and chlorine co-doped core

Annealing treatments for modified titania-silica glasses and the glasses produced by the annealing treatments. The annealing treatments include an isothermal hold that facilitates equalization of non-uniformities in fictive temperature caused by non-uniformities in modifier concentration in the glasses. The annealing treatments may also include heating the glass to a higher temperature following the isothermal hold and holding the glass at that temperature for several hours. Glasses produced by the annealing treatments exhibit high spatial uniformity of CTE, CTE slope, and fictive temperature, including in the presence of a spatially non-uniform concentration of modifier.

Ultralow expansion titania-silica glass

A method of forming a glass article is provided. The method includes the steps of positioning a first interface surface of a first glass block proximate a second interface surface of a second glass block to define an interface seam, welding the first and second glass blocks together around a majority of the interface seam to define an internal cavity, coupling a vacuum fitting to at least one of the first and second glass blocks, drawing a vacuum in the cavity between the first and second glass blocks, and heating the first and second glass blocks to fuse the first and second glass blocks together.

Fusing glass articles

A method of forming a doped silica-titania glass is provided. The method includes blending batch materials comprising silica, titania, and at least one dopant. The method also includes heating the batch materials to form a glass melt. The method further includes consolidating the glass melt to form a glass article, and annealing the glass article.

Doped silica-titania glass having low expansivity and methods of making the same

A doped silica-titania ('DST') glass article that includes a glass article having a glass composition comprising a silica-titania base glass containing titania at 7 to 14 wt. % and a balance of silica, and a dopant selected from the group consisting of (a) F at 0.7 to 1.5 wt. %, (b) BOat 1.5 to 5 wt. %, (c) OH at 1000 to 3000 ppm, and (d) BOat 0.5 to 2.5 wt. % and OH at 100 to 1400 ppm. The glass article has an expansivity slope of less than about 1.3 ppb/Kat 20&#xb0; C. For DST glass articles doped with F or BO, the OH level can be held to less than 10 ppm, or less than 100 ppm, respectively. In many aspects, the DST glass articles are substantially free of titania in crystalline form.

Doped ultra-low expansion glass and methods for annealing the same

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Horseheads, NY, United States of America

Kenneth Edward Hrdina