公开(公告)号：US20190161402A1

公开(公告)日：2019-05-30

申请号：US16204348

申请日：2018-11-29

Applicant: Corning Incorporated

Inventor： Jason Thomas Harris ,  Kevin Barry Reiman ,  Rostislav Vatchev Roussev ,  Ross Johnson Stewart

IPC: C03C21/00 ,  C03C10/00 ,  C03B27/03 ,  G06F1/16

Abstract: Glass-based articles having defined stress profiles and methods for manufacturing such glass-based articles are provided. A non-limiting glass-based article comprises an outer region extending from the surface to a depth of compression, wherein the outer region is under a neutral stress or a first compressive stress, a core region under a second compressive stress, the second compressive stress defining a compression peak having a maximum compression value and a maximum width at zero stress in a range of from about 1 micrometer to about 200 micrometers, and an intermediate region disposed between the surface and the core region, wherein the intermediate region is under a tensile stress.

公开(公告)号：US20170260079A1

公开(公告)日：2017-09-14

申请号：US15455910

申请日：2017-03-10

Applicant: Corning Incorporated

Inventor： Jason Thomas Harris ,  Guangli Hu ,  Yousef Kayed Qaroush ,  Irene Marjorie Slater ,  Vijay Subramanian ,  Sam Samer Zoubi

IPC: C03B27/012 ,  H05K5/00 ,  H05K5/03 ,  C03C21/00

CPC classification number: C03B27/012 ,  B32B17/06 ,  C03C21/00 ,  C03C21/002 ,  C03C27/06 ,  H04M1/185 ,  H05K5/0017 ,  H05K5/03 ,  Y10T428/10

Abstract: Glass articles comprising an outer region extending from an outer surface of the glass article to a depth of layer and methods of making the same are described. The outer region is bounded by at least one edge of the glass article and is under an intrinsic neutral stress or an intrinsic compressive stress. A core region of the glass article is under a tensile stress. A compressive element applies an external compressive stress to the at least one edge and increases the intrinsic stress on the outer region and reduces the tensile stress in the core region of the glass article. The glass article may be a strengthened glass article such that the outer region is under compressive stress, and the external compressive stress applied by the compressive element has a magnitude such that the glass article has an overall internal stress defined by: ∫0tσdt≠0 where t is a thickness of the glass article and σ is the internal stress.

公开(公告)号：US12162801B2

公开(公告)日：2024-12-10

申请号：US17480348

申请日：2021-09-21

Applicant: CORNING INCORPORATED

Inventor： Xiaoju Guo ,  Jason Thomas Harris ,  Kevin Barry Reiman

IPC: C03C21/00 ,  C03C3/091 ,  C03C3/097 ,  C03C10/00

Abstract: Glass-based articles comprise stress profiles providing improved drop performance. A glass-based substrate comprises: a glass transition temperature (Tg), a liquid fragility index (m), and fictive temperature (Tf), wherein Tg is less than or equal to 650° C., a value of Tf minus Tg is greater than or equal to −30° C., and m is greater than or equal to 25. A stress relaxation rate is greater than or equal to 10%, or 20% or more. The articles can comprise a lithium-based aluminosilicate composition and a fracture toughness that is greater than or equal to 0.75 MPa*m0.5. The stress profiles comprise: a spike region extending from the first surface to a knee; and a tail region extending from the knee to a center of the glass-based article, the tail region comprising: a negative curvature region wherein a second derivative of stress as a function of depth is negative; a depth of compression (DOC) that is greater than or equal to 0.22 t, and a parabolic region originating at the DOC and extending to the center of the glass-based article.

公开(公告)号：US20230359074A1

公开(公告)日：2023-11-09

申请号：US18142067

申请日：2023-05-02

Applicant: CORNING INCORPORATED ,  CORNING PRECISION MATERIALS Co., LTD.

Inventor： Jaymin Amin ,  Jason Thomas Harris ,  Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Lin Lin ,  Alexandre Michel Mayolet ,  Dong-gun Moon ,  Jeonghong Oh ,  Naveen Prakash ,  James Joseph Price ,  Charlene Marie Smith ,  Ananthanarayanan Subramanian ,  Ljerka Ukrainczyk ,  Florence Christine Monique Verrier ,  Tingge Xu ,  Binwei Zhang ,  Wenlei Zhang

IPC: G02F1/1333 ,  G02F1/19 ,  G02F1/1347 ,  G02B1/14

CPC classification number: G02F1/133305 ,  G02F1/19 ,  G02F1/13471 ,  G02B1/14 ,  G02F2201/50

Abstract: A transparent article is described herein that includes: a substrate comprising an opposing first and second primary surface; and an optical film structure disposed on the first primary surface. The optical film structure comprises a scratch-resistant layer, a plurality of alternating high refractive index (RI) and low RI layers, and an outer and inner structure, the scratch-resistant layer disposed between the outer and inner structures. The outer structure can comprise at least one medium RI layer in contact with one of the high RI layers and the scratch-resistant layer. The medium RI layer comprises an RI from 1.55 to 1.80, each of the high RI layers comprises an RI of >1.80, and each of the low RI layers comprises an RI

公开(公告)号：US20230244004A1

公开(公告)日：2023-08-03

申请号：US18120488

申请日：2023-03-13

Applicant: CORNING INCORPORATED ,  CORNING PRECISION MATERIALS Co., LTD.

Inventor： 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: G02B1/14 ,  G02B1/115 ,  G02B5/28

CPC classification number: G02B1/14 ,  G02B1/115 ,  G02B5/285

Abstract: 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：US11697617B2

公开(公告)日：2023-07-11

申请号：US17632086

申请日：2020-07-31

Applicant: CORNING INCORPORATED

Inventor： Douglas Clippinger Allan ,  Vladislav Yuryevich Golyatin ,  Petr Gorelchenko ,  Jason Thomas Harris ,  Jin Su Kim ,  Peter Joseph Lezzi ,  Rostislav Vatchev Roussev ,  Natesan Venkataraman

IPC: C03C27/06 ,  C03C21/00 ,  B32B17/06

CPC classification number: C03C27/06 ,  B32B17/06 ,  C03C21/002 ,  B32B2307/558

Abstract: A laminated glass article comprises a core layer comprising a core glass composition, and a cladding layer directly adjacent to the core layer and comprising a clad glass composition. A stress of the cladding layer increases with increasing distance from an outer surface of the cladding layer from a compressive stress to a tensile stress, transitions to a compressive stress as a step-change at an interface region between the core layer and the cladding layer, and increases with increasing distance from the interface region to a center of the core layer from the compressive stress to a tensile stress.

公开(公告)号：US11667566B2

公开(公告)日：2023-06-06

申请号：US17742461

申请日：2022-05-12

Applicant: CORNING INCORPORATED

Inventor： 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: B32B15/04 ,  B32B17/06 ,  C03C21/00 ,  C03C3/085 ,  C03C3/091 ,  C03C3/097

CPC classification number: C03C21/002 ,  C03C3/085 ,  C03C3/091 ,  C03C3/097

Abstract: 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：US11560332B2

公开(公告)日：2023-01-24

申请号：US16337137

申请日：2017-09-25

Applicant: CORNING INCORPORATED

Inventor： Jason Thomas Harris ,  Vijay Subramanian ,  Wei Xu

IPC: C03C21/00 ,  C03C17/22 ,  C03C17/23

Abstract: Strengthened glass-based substrates having a first outer region compressive stress and a first side having first coating thereon are disclosed. The first coating comprising a material selected to have a first coating Young's modulus value, a first coating thickness, and a first coating stress that is either neutral or compressive, such that the absolute value of first outer region compressive stress is greater than the absolute value of the first coating stress. Methods of making glass-based articles are provided, and glass-based articles having coatings that provide different strength values and/or reliability on different sides of the glass-based articles are also disclosed.

公开(公告)号：US20220135472A1

公开(公告)日：2022-05-05

申请号：US17433790

申请日：2020-02-20

Applicant: CORNING INCORPORATED

Inventor： Jason Thomas Harris ,  Jeffrey Todd Kohli

IPC: C03C21/00 ,  C03B23/023

Abstract: Methods for compensating for warp typically exhibited by glass-based articles having non-uniform thicknesses as a result of ion exchange strengthening are provided. The methods include producing a molding surface of a mold based on a measurement of warp obtained by a specified ion exchange strengthening of a glass-based substrate of non-uniform thickness, such that the molding surface offsets the warp. Glass-based substrates resulting from the mold can then be exposed to the specified ion exchange strengthening and form glass-based articles that are substantially free of warp.

公开(公告)号：US20220098096A1

公开(公告)日：2022-03-31

申请号：US17480348

申请日：2021-09-21

Applicant: CORNING INCORPORATED

Inventor： Xiaoju Guo ,  Jason Thomas Harris ,  Kevin Barry Reiman

IPC: C03C21/00 ,  C03C10/00 ,  C03C3/097

Abstract: Glass-based articles comprise stress profiles providing improved drop performance. A glass-based substrate comprises: a glass transition temperature (Tg), a liquid fragility index (m), and fictive temperature (Tf), wherein Tg is less than or equal to 650° C., a value of Tf minus Tg is greater than or equal to −30° C., and m is greater than or equal to 25. A stress relaxation rate is greater than or equal to 10%, or 20% or more. The articles can comprise a lithium-based aluminosilicate composition and a fracture toughness that is greater than or equal to 0.75 MPa*m0.5. The stress profiles comprise: a spike region extending from the first surface to a knee; and a tail region extending from the knee to a center of the glass-based article, the tail region comprising: a negative curvature region wherein a second derivative of stress as a function of depth is negative; a depth of compression (DOC) that is greater than or equal to 0.22 t, and a parabolic region originating at the DOC and extending to the center of the glass-based article.