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公开(公告)号：US12122716B2
公开(公告)日：2024-10-22
申请号：US17100251
申请日：2020-11-20
Applicant: CORNING INCORPORATED
Inventor： Pascale Oram , Rostislav Vatchev Roussev
CPC classification number: C03C4/18 , C03C3/097 , C03C21/002 , C03C2204/00
Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance and decreased weight gain. The glass-based articles are produced with a single-step ion exchange process.
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公开(公告)号：US12077470B2
公开(公告)日：2024-09-03
申请号：US18131154
申请日：2023-04-05
Applicant: CORNING INCORPORATED
Inventor： Xiaoju Guo , Jennifer Lynn Hunt , Peter Joseph Lezzi , Rostislav Vatchev Roussev , Charlene Marie Smith , Ross Johnson Stewart
CPC classification number: C03C21/002 , C03C3/087 , H05K7/14
Abstract: Glass-based articles are provided that exhibit improved fracture resistance. The relationships between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved fracture resistance.
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公开(公告)号：US20240292554A1
公开(公告)日：2024-08-29
申请号：US18613725
申请日：2024-03-22
Applicant: CORNING INCORPORATED
Inventor： Timothy Michael Gross , Xiaoju Guo , Pascale Oram , Kevin Barry Reiman , Rostislav Vatchev Roussev , Vitor Marino Schneider , Trevor Edward Wilantewicz
CPC classification number: H05K5/0217 , C03C3/093 , C03C3/097 , C03C21/002 , H05K5/0017 , H05K5/03 , H04B1/3888 , H04M1/0266
Abstract: Glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t), and a stress profile are disclosed having a thickness (t) of about 3 millimeters or less, and wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent with a slope that is less than about −0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers. Also disclosed are glass-based articles having a thickness (t) in a range of 0.1 mm and 2 mm; and wherein at least one point of the stress profile in a first thickness range from about 0·t up to 0.020·t and greater than 0.98·t comprises a tangent with a slope of from about −200 MPa/micrometer to about −25 MPa/micrometer or about 25 MPa/micrometer to about 200 MPa/micrometer, and wherein all points of the stress profile in a second thickness range from about 0.035·t and less than 0.965·t comprise a tangent with a slope of from about −15 MPa/micrometer to about 15 MPa/micrometer.
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公开(公告)号：US20240158285A1
公开(公告)日：2024-05-16
申请号：US18410368
申请日：2024-01-11
Applicant: Corning Incorporated
Inventor： Delena Lucinda Justice Duffy , Rostislav Vatchev Roussev , Vitor Marino Schneider , Kristy Lynn Smith
IPC: C03C3/097 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/095 , C03C4/18 , C03C21/00
CPC classification number: C03C3/097 , C03C3/083 , C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/095 , C03C4/18 , C03C21/002 , C03C2204/00
Abstract: A glass exhibiting non-frangible behavior in a region where substantially higher central tension is possible without reaching frangibility is provided. This region allows greater extension of the depth of compression in which fracture-causing flaws are arrested, without rendering the glass frangible despite the presence of high central tension region in the sample.
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公开(公告)号：US20240109806A1
公开(公告)日：2024-04-04
申请号：US18537240
申请日：2023-12-12
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Xiaoju Guo , Pascale Oram , Rostislav Vatchev Roussev , Ljerka Ukrainczyk , Taylor Marie Wilkinson
CPC classification number: C03C21/002 , C03C3/093 , C03C3/125 , C03C4/18 , H05K5/0017 , H05K5/03 , C03C2204/00
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US11878936B2
公开(公告)日：2024-01-23
申请号：US17953668
申请日：2022-09-27
Applicant: Corning Incorporated
Inventor： Timothy Michael Gross , Guangli Hu , Rostislav Vatchev Roussev , Charlene Marie Smith , Zhongzhi Tang , Steven Alvin Tietje
CPC classification number: C03C21/002 , C03C3/093 , C03C3/097 , C03C4/18 , C03C23/007 , C03C2204/00
Abstract: 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.
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公开(公告)号：US20230057346A1
公开(公告)日：2023-02-23
申请号：US17961188
申请日：2022-10-06
Applicant: CORNING INCORPORATED
Inventor： Timothy Michael Gross , Xiaoju Guo , Pascale Oram , Kevin Barry Reiman , Rostislav Vatchev Roussev , Vitor Marino Schneider , Trevor Edward Wilantewicz
Abstract: Glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t), and a stress profile are disclosed having a thickness (t) of about 3 millimeters or less, and wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent with a slope that is less than about −0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers. Also disclosed are glass-based articles having a thickness (t) in a range of 0.1 mm and 2 mm; and wherein at least one point of the stress profile in a first thickness range from about 0·t up to 0.020·t and greater than 0.98·t comprises a tangent with a slope of from about −200 MPa/micrometer to about −25 MPa/micrometer or about 25 MPa/micrometer to about 200 MPa/micrometer, and wherein all points of the stress profile in a second thickness range from about 0.035·t and less than 0.965·t comprise a tangent with a slope of from about −15 MPa/micrometer to about 15 MPa/micrometer.
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公开(公告)号：US11577987B2
公开(公告)日：2023-02-14
申请号：US17164060
申请日：2021-02-01
Applicant: CORNING INCORPORATED
Inventor： Timothy Michael Gross , Xiaoju Guo , Peter Joseph Lezzi , Alexandra Lai Ching Kao Andrews Mitchell , Rostislav Vatchev Roussev
Abstract: A glass composition includes from 55.0 mol % to 75.0 mol % SiO2; from 8.0 mol % to 20.0 mol % Al2O3; from 3.0 mol % to 15.0 mol % Li2O; from 5.0 mol % to 15.0 mol % Na2O; and less than or equal to 1.5 mol % K2O. The glass composition has the following relationships: Al2O3+Li2O is greater than 22.5 mol %, R2O+RO is greater than or equal to 18.0 mol %, R2O/Al2O3 is greater than or equal to 1.06, SiO2+Al2O3+B2O3+P2O5 is greater than or equal to 78.0 mol %, and (SiO2+Al2O3+B2O3+P2O5)/Li2O is greater than or equal to 8.0. The glass composition may be used in a glass article or a consumer electronic product.
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公开(公告)号：US20220315485A1
公开(公告)日：2022-10-06
申请号：US17848752
申请日：2022-06-24
Applicant: CORNING INCORPORATED
Abstract: A non-frangible glass article strengthened by a dual or two-step ion exchange (IOX) process, where the first IOX step leads to a depth of compressive layer FSM_DOL>0.1·t or, in some embodiments, FSM_DOL>0.15·t, where t is the thickness of the glass, is provided. The glass article has a compressive stress CS1 after the first IOX step at the surface of from 100 MPa to 400 MPa or, in some embodiments, from 150 MPa to 300 MPa. The first IOX step is followed by a second IOX step, leading to a “spike” compressive stress CS2 after the second IOX step at the surface of greater than 500 MPa or, in some embodiments, 700 MPa. The width of the spike generated by the second IOX is between 1 μm and 30 μm, or between 8 μm and 15 μm, using the criteria where the magnitude (absolute value) of the slope of the spike is higher than 20 MPa/μm.
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公开(公告)号：US11448595B2
公开(公告)日：2022-09-20
申请号：US17084738
申请日：2020-10-30
Applicant: CORNING INCORPORATED
Inventor： Ryan Claude Andrews , Rostislav Vatchev Roussev , Antons Treikalis , Ming Yang
Abstract: The prism-coupling systems and methods include using a prism-coupling system to collect a 2D digital mode spectrum of an IOX article. The mode line and critical angle positions and orientations are found by performing a weighted fit to mode line and critical angle images and are used to define a compensated mode spectrum. If mode line tilt is found, it is removed from the 2D digital mode spectrum to define the compensated mode spectrum. The compensated mode spectrum is then processed using techniques known in the art to provide a more accurate estimate of stress-related characteristics of the IOX sample versus using the uncompensated mode spectrum. Derivative-based methods of accurately establishing positions of intensity transitions in a mode spectrum of an IOX sample using a derivative spectrum and curve fitting are also disclosed.
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