公开(公告)号：US20240109806A1

公开(公告)日：2024-04-04

申请号：US18537240

申请日：2023-12-12

申请人： CORNING INCORPORATED

发明人： Jaymin Amin ,  Xiaoju Guo ,  Pascale Oram ,  Rostislav Vatchev Roussev ,  Ljerka Ukrainczyk ,  Taylor Marie Wilkinson

IPC分类号： C03C21/00 ,  C03C3/093 ,  C03C3/12 ,  C03C4/18 ,  H05K5/00 ,  H05K5/03

CPC分类号： C03C21/002 ,  C03C3/093 ,  C03C3/125 ,  C03C4/18 ,  H05K5/0017 ,  H05K5/03 ,  C03C2204/00

摘要： Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a range from 8 mol % to 100 mol %. The glass-based article includes sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article The glass-based article has compressive stress layer extending from the surface to a spike depth of layer from 4 micrometers to 8 micrometers. The glass-based article includes a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8.

公开(公告)号：US11927722B2

公开(公告)日：2024-03-12

申请号：US18120488

申请日：2023-03-13

申请人： CORNING INCORPORATED

发明人： Jaymin Amin ,  Jason Thomas Harris ,  Shandon Dee Hart ,  Chang-gyu Kim ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Lin Lin ,  Dong-gun Moon ,  Jeonghong Oh ,  James Joseph Price ,  Charlene Marie Smith ,  Ananthanarayanan Subramanian ,  Ljerka Ukrainczyk ,  Tingge Xu

IPC分类号： G02B1/115 ,  G02B1/14 ,  G02B5/28

CPC分类号： G02B1/14 ,  G02B1/115 ,  G02B5/285 ,  C03C2217/734

摘要： A transparent article is described herein that includes: a glass-ceramic substrate comprising first and second primary surfaces opposing one another and a crystallinity of at least 40% by weight; and an optical film structure disposed on the first primary surface. The optical film structure comprises a plurality of alternating high refractive index (RI) and low RI layers and a scratch-resistant layer. The article also exhibits an average photopic transmittance of greater than 80% and a maximum hardness of greater than 10 GPa, as measured by a Berkovich Hardness Test over an indentation depth range from about 100 nm to about 500 nm. The glass-ceramic substrate comprises an elastic modulus of greater than 85 GPa and a fracture toughness of greater than 0.8 MPa·√m. Further, the optical film structure exhibits a residual compressive stress of ≥700 MPa and an elastic modulus of ≥140 GPa.

公开(公告)号：US11339088B2

公开(公告)日：2022-05-24

申请号：US16434750

申请日：2019-06-07

申请人： CORNING INCORPORATED

发明人： Timothy Michael Gross ,  Xiaoju Guo ,  Jason Thomas Harris ,  Peter Joseph Lezzi ,  Alexandra Lai Ching Kao Andrews Mitchell ,  Pascale Oram ,  Kevin Barry Reiman ,  Rostislav Vatchev Roussev ,  Ljerka Ukrainczyk

IPC分类号： B32B15/04 ,  B32B17/06 ,  C03C21/00 ,  C03C3/085 ,  C03C3/091 ,  C03C3/097

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

公开(公告)号：US11161781B2

公开(公告)日：2021-11-02

申请号：US16043442

申请日：2018-07-24

申请人： CORNING INCORPORATED

发明人： Jaymin Amin ,  Xiaoju Guo ,  Todd LeRoy Heck ,  Hongmei Hu ,  Yuhui Jin ,  Pascale Oram ,  Ljerka Ukrainczyk

IPC分类号： C03C21/00 ,  C03C3/097 ,  B01J39/02 ,  B01J39/14 ,  C03C4/18

摘要： Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.

公开(公告)号：US11104608B2

公开(公告)日：2021-08-31

申请号：US16682143

申请日：2019-11-13

申请人： CORNING INCORPORATED

发明人： Ryan Claude Andrews ,  Albert Joseph Fahey ,  Lisa Marie Noni ,  Rostislav Vatchev Roussev ,  Charlene Marie Smith ,  Ljerka Ukrainczyk ,  Shelby Kerin Wilson

IPC分类号： C03C21/00 ,  C03C10/00

摘要： Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07 t to a depth of about 0.26 t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18 t to about 0.25 t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.

公开(公告)号：US11053162B2

公开(公告)日：2021-07-06

申请号：US15750051

申请日：2017-02-02

申请人： CORNING INCORPORATED

发明人： Ryan Claude Andrews ,  Jill Marie Hall ,  Pascale Oram ,  Rostislav Vatchev Roussev ,  Vitor Marino Schneider ,  Ljerka Ukrainczyk

IPC分类号： B32B15/04 ,  B32B17/06 ,  C03C10/00 ,  C03C3/085 ,  C03C3/097 ,  C03C21/00

摘要： A method of reworking lithium containing ion exchanged glass articles is provided. The method includes a reverse ion exchange process that returns the glass article to approximately the composition of the glass from which the glass article was produced, before being subjected to ion exchange. The reworked glass articles exhibit a K2O concentration profile comprising a portion wherein a K2O concentration increases to a local K2O concentration maximum.

公开(公告)号：US20200181011A1

公开(公告)日：2020-06-11

申请号：US16786452

申请日：2020-02-10

申请人： CORNING INCORPORATED

发明人： Jaymin Amin ,  Xiaoju Guo ,  Todd LeRoy Heck ,  Hongmei Hu ,  Yuhui Jin ,  Pascale Oram ,  Ljerka Ukrainczyk

IPC分类号： C03C21/00 ,  C03C4/18 ,  B01J39/14 ,  B01J39/02 ,  C03C3/097

摘要： Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.

公开(公告)号：US20200062631A1

公开(公告)日：2020-02-27

申请号：US16527913

申请日：2019-07-31

申请人： CORNING INCORPORATED

发明人： Thierry Luc Alain Dannoux ,  Vladislav Yuryevich Golyatin ,  John Richard Ridge ,  Ljerka Ukrainczyk ,  Butchi Reddy Vaddi ,  Natesan Venkataraman

IPC分类号： C03B23/023 ,  B32B17/06 ,  H05K5/06 ,  C03B17/02 ,  C03B17/06 ,  C03B23/035 ,  C03C21/00

摘要： A method includes contacting a glass sheet with a forming surface to form a shaped glass article. An effective viscosity of the glass sheet during the contacting step is less than a contact viscosity of the glass sheet in contact with the forming surface during the contacting step.

公开(公告)号：US20190106353A1

公开(公告)日：2019-04-11

申请号：US16150816

申请日：2018-10-03

申请人： CORNING INCORPORATED

发明人： Rohit Rai ,  Ljerka Ukrainczyk

IPC分类号： C03C21/00

摘要： Glass-based articles having sections of different thicknesses where a maximum central tension in a thinner section is less than that of a thicker section. The articles comprise an alkali metal oxide having a independent nonzero concentrations that vary along at least a portion of the thickness of each section. Consumer electronic products may comprise the glass-based articles having sections of different thicknesses.

公开(公告)号：US20180343758A1

公开(公告)日：2018-11-29

申请号：US16045972

申请日：2018-07-26

申请人： CORNING INCORPORATED

发明人： Karl David Ehemann ,  Keith Raymond Gaylo ,  William Brashear Mattingly, III ,  Connor Thomas O'Malley ,  Ljerka Ukrainczyk ,  Kevin Lee Wasson

IPC分类号： H05K5/03 ,  C03C3/00 ,  C03C21/00 ,  C03C3/091 ,  H05K5/00 ,  C03C3/083 ,  C03C3/085 ,  C03C3/087 ,  C03C3/093 ,  C03C3/095 ,  C03C4/18 ,  C03B23/023

摘要： A cover glass article includes a glass body having a three-dimensional shape, an inside surface, and an outside surface. Each of the inside and outside surfaces has a surface roughness (Ra) less than 1 nm and is free of indentations having diameters larger than 150 μm.