Corning Incorporated

Timothy Michael Gross

Xiaoju Guo

Dana Craig Bookbinder

Charlene Marie Smith

Rostislav Vatchev Roussev

Peter Joseph Lezzi

Matthew John Dejneka

Jingshi Wu

Guangli Hu

Alexandra Lai Ching Kao Andrews Mitchell

Polly Wanda Chu

Adam James Ellison

Sinue Gomez

Theresa Chang

Nicholas James Smith

Dayue Jiang

Gary Stephen Calabrese

Nicholas Francis Borrelli

Jianguo Wang

Lisa Anne Tietz Moore

Wendell Porter Weeks

Richard Michael Fiacco

Kevin Barry Reiman

Pascale Oram

Patrick Joseph Cimo

John Christopher Mauro

Natesan Venkataraman

Steven Alvin Tietje

Zhongzhi Tang

Thomas Michael Cleary

Zheming Zheng

Butchi Reddy Vaddi

John Philip Finkeldey

Georgiy M Guryanov

Torsten Nath

Ljerka Ukrainczyk

Jaymin Amin

Jason Thomas Harris

Nagaraja Shashidhar

Odessa Natalie Petzold

Kristen L Barefoot

Stephan Lvovich Logunov

Steven Edward DeMartino

Qiang Fu

Kevin Lee Wasson

Atul Kumar

Richard Orr Maschmeyer

John Christopher Thomas

Liming Wang

Cheng-Chung Li

Marcel Potuzak

David Alan Tammaro

Sumalee Likitvanichkul

Adam Robert Sarafian

Khaled Layouni

Matthew Lee Black

Michael Patrick Donovan

Vitor Marino Schneider

Yuhui Jin

Wageesha Senaratne

Heather Debra Boek

Ronald Leroy Stewart

Adama Tandia

Shawn Rachelle Markham

Yousef Kayed Qaroush

Jae Hyun Yu

Prakash Chandra Panda

Robert Lee Smith, Iii

Douglas Dale Bressler

Trevor Edward Wilantewicz

Liying Zhang

Jason Scott Stewart

Pushkar Tandon

Jin Su Kim

Alexander Mikhailovich Streltsov

Paul John Shustack

Dmitri Vladislavovich Kuksenkov

Jeffrey Todd Kohli

Lu Zhang

John T Keech

James Ernest Webb

Jesse Kohl

Jiangwei Feng

Mark Owen Weller

Gautam Narendra Kudva

Rohit Rai

Matthew Wade Fenton

Kochuparambil Deenamma Vargheese

Daniel Ralph Harvey

Kiat Chyai Kang

Dhananjay Joshi

Jinlin Peng

Venkatesh Botu

Yu Xiao

Jen-Chieh Lin

Ruchirej Yongsunthon

Andrea Weiss Bookbinder

Balamurugan Meenakshi Sundaram

Pei-Lien Tseng

Foldable apparatus can comprise a foldable substrate comprising a substrate thickness and a central portion positioned between a first portion and a second portion. The central portion can comprise a central thickness less than the substrate thickness. A first maximum tensile stress of a first tensile stress region in the first portion and a second maximum tensile stress of the second tensile stress region in the second portion can be less than a third maximum tensile stress of a central tensile stress region in the central portion. Ribbons can comprise a ribbon thickness and a central portion positioned between a first portion and a second portion. The central portion can comprise a first central compressive stress region and a second central compressive stress region. In some embodiments, methods of processing a ribbon can comprise masking the first portion, masking the second portion, and chemically strengthening the central portion.

Foldable apparatus, ribbons, and methods of making

A glass composition includes: from 55.0 mol % to 70.0 mol % SiO; from 12.0 mol % to 20.0 mol % AlO; from 5.0 mol % to 15.0 mol % LiO; and from 4.0 mol % to 15.0 mol % NaO. The glass composition has the following relationships −8.00 mol %≤RO+RO−AlO−BO−PO≤−1.75 mol %, 9.00≤(SiO+AlO+LiO)/NaO, and (LiO+AlO+PO)/(NaO+BO)≤3.50. The glass composition may be used in a glass article or a consumer electronic product.

Glasses with low excess modifier content

The disclosure relates to glass compositions with high coefficients of thermal expansion and low fracture toughness designed for thermal tempering. These glasses are ideally suited to produce a 'dicing' pattern when thermally tempered, even when thin (<3 mm). Disclosed glasses have high thermal expansions at low and high temperatures to produce increased temper stresses once quenched, coupled with low fracture toughness which promotes crack bifurcation and enhanced frangibility. Methods of making such glasses are also provided.

Non-iox glasses with high coefficient of thermal expansion and preferential fracture behavior for thermal tempering

Glass-based articles that include a reduced Young's modulus layer extending from a surface of the glass-based article to a depth of layer and an optional compressive stress layer extending from a surface of the glass-based article to a depth of compression are formed by exposing glass-based substrates to water vapor containing environments. The methods of forming the glass-based articles may include elevated pressures and/or multiple exposures to water vapor containing environments. The glass-based articles may be utilized in foldable or flexible electronic devices.

Glasses with modified young's modulus profile

A glass composition includes from 60 mol % to 76 mol % SiO; from 7 mol % to 16 mol % AlO; from 0 mol % to 12 mol % BO; and from 0 mol to 14 mol % NaO. (RO+RO)/AlOin the glass composition may be greater than or equal to 1. A glass laminate article includes a core glass layer having a low temperature coefficient of thermal expansion (LTCTE) and a high temperature coefficient of thermal expansion (HTCTE): a clad glass layer laminated to a surface of the core glass layer, the clad glass layer having a low temperature coefficient of thermal expansion (LTCTE) and a high temperature coefficient of thermal expansion (HTCTE); and a thickness t.

Glass compositions and strengthened glass laminate articles comprising the same

A method of manufacturing a strengthened glass article includes forming a glass-to-glass laminate by fusing clad and core glasses, where the clad has greater high-temperature coefficient of thermal expansion (HTCTE) than the core but a lesser low-temperature coefficient of thermal expansion (LTCTE). The method includes cooling the laminate to impart stresses through contraction mismatch between the clad and core, where stresses in the laminate from HTCTE differences at least partially offset stresses in the laminate from LTCTE. After the cooling, the method includes modifying geometry of the laminate, then relaxing at least some of the stresses in the glass-to-glass laminate from differences in the HTCTE.

Glass laminate articles

Alkali aluminosilicate glasses that are resistant to damage due to sharp impact and capable of fast ion exchange are provided. The glasses comprise at least 4 mol % POand, when ion exchanged, have a Vickers indentation crack initiation load of at least about 7 kgf.

Ion exchangeable glass with high crack initiation threshold

Embodiments of a method for pair bending glass articles is provided herein. In the method, a first glass article and a second glass article are stacked to form a stack. The first glass article includes a first surface, a second surface that opposes the first surface, and a first composition having first annealing and softening temperatures. The second glass article includes a third surface, a fourth surface that opposes the third surface, and a second composition having second annealing and softening temperatures. The annealing temperatures are within 35° C. of each other and are at least 550° C. The softening temperatures are within 35° C. of each other and are at least 750° C. In the method, the stack is placed on a mold, and the stack is heated to a sagging temperature such that a shaped stack is formed.

Glass compositions for use in co-formed laminates

Embodiments of glass compositions, glass articles and chemically strengthened glass articles are disclosed. In one or more embodiments, the glass composition comprises LiO, greater than about 0.9 mol % BO, AlOin an amount greater than or equal to 10 mol %, and from about 60 mol % to about 80 mol % SiO. Embodiments of the chemically strengthened glass article include a first major surface and an opposing second major surface defining a thickness t, a compressive stress layer extending from the first major surface to a depth of compression greater than about 0.12 t, a maximum compressive stress of about 200 MPa or greater, and a Knoop Lateral Cracking Scratch Threshold greater than about 6 N, as measured on either one of the first major surface and the second major surface. Methods for forming such chemically strengthened glass articles are also disclosed.

Fracture and scratch resistant glass articles

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

Fracture resistant stress profiles in glasses

A glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 millimeters or less (e.g., about 1 millimeter or less), and a stress profile, wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than about 0.7·t to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer. In some embodiments, the glass-based article includes a non-zero metal oxide concentration that varies along at least a portion of the thickness (e.g., 0·t to about 0.3·t) and a maximum central tension of less than about 71.5/√(t) (MPa). In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a point between the first surface and the second surface and increases from the point to the second surface. The concentration of the metal oxide may be about 0.05 mol % or greater or about 0.5 mol % or greater throughout the thickness. Methods for forming such glass-based articles are also disclosed.

Fusion-formable glass-based articles including a metal oxide concentration gradient

A glass composition includes from 55.0 mol % to 75.0 mol % SiO; from 8.0 mol % to 20.0 mol % AlO; from 3.0 mol % to 15.0 mol % LiO; from 5.0 mol % to 15.0 mol % NaO; and less than or equal to 1.5 mol % KO. The glass composition has the following relationships: AlO+LiO is greater than 22.5 mol %, RO+RO is greater than or equal to 18.0 mol %, RO/AlOis greater than or equal to 1.06, SiO+AlO+BO+POis greater than or equal to 78.0 mol %, and (SiO+AlO+BO+PO)/LiO is greater than or equal to 8.0. The glass composition may be used in a glass article or a consumer electronic product.

Ion-exchangeable mixed alkali aluminosilicate glasses

Disclosed herein are embodiments of a glass article having a glass composition. The glass composition includes SiOin an amount of from 63 mol % to 75 mol %, AlOin an amount of from 7 mol % to 13 mol %, RO in an amount of from 13 mol % to 24 mol %, POin an amount of from 0.1 mol % to 1.2 mol %, and a water content β-OH of 0.1 abs/mm to 0.5 abs/mm. Further, the glass composition includes at least one of MgO or ZnO. MgO is present in a range from 0 mol % to 7 mol %, and ZnO is present in a range from 0 mol % to 7 mol %. The glass article has an anneal point and a softening point, and the relationship of (anneal point+softening point)/2 is less than 685° C.

Soft, chemically-strengthenable glasses for laminates

Glass-based articles that include a compressive stress layer extending from a surface of the glass-based article to a depth of compression are formed by exposing glass-based substrates to water vapor containing environments. The methods of forming the glass-based articles may include elevated pressures and/or multiple exposures to water vapor containing environments.

Glass compositions and methods for strengthening via steam treatment

A laminate glass article is provided that includes: a core glass layer comprising a first coefficient of thermal expansion (CTE); and a plurality of clad glass layers, each comprising a first primary surface, a second primary surface in contact with the core glass layer and a second CTE that is lower than the first CTE of the core glass layer. The difference in the first and second CTE is about 10×10/#C to about 70×10/#C. Further, each of the core glass layer and the clad glass layers comprises a viscosity from 10to 10Poise from about 550 #C to about 700 #C.

Glass articles with residual stress and viscosity properties for sagging processes, and compositions for the same

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Corning, NY, United States of America

Timothy Michael Gross