公开(公告)号：US12187639B2

公开(公告)日：2025-01-07

申请号：US17899168

申请日：2022-08-30

Applicant: CORNING INCORPORATED

Inventor： Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: C03C21/00 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C10/00 ,  C03C23/00

Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and. an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.

公开(公告)号：US20240150220A1

公开(公告)日：2024-05-09

申请号：US18415821

申请日：2024-01-18

Applicant: CORNING INCORPORATED

Inventor： Alexandra Lai Ching Kao Andrews Mitchell ,  Steven Alvin Tietje

IPC: C03C3/095 ,  C03C3/062 ,  C03C10/00

CPC classification number: C03C3/095 ,  C03C3/062 ,  C03C10/0027 ,  C03C2204/00

Abstract: A composition includes: 30 mol % to 60 mol % SiO2; 15 mol % to 35 mol % Al2O3; 5 mol % to 25 mol % Y2O3; 0 mol % to 20 mol % TiO2; and 0 mol % to 25 mol % R2O, such that R2O is the sum of Na2O, K2O, Li2O, Rb2O, and Cs2O.

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

IPC: C03C21/00 ,  C03C23/00 ,  C03C3/093 ,  C03C3/097 ,  C03C4/18

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.

公开(公告)号：US11691913B2

公开(公告)日：2023-07-04

申请号：US17695948

申请日：2022-03-16

Applicant: CORNING INCORPORATED

Inventor： Matthew John Dejneka ,  Sinue Gomez ,  Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: B32B3/00 ,  C03C21/00 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C10/00 ,  H05K5/00 ,  H05K5/03

CPC classification number: C03C21/002 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C10/0027 ,  H05K5/0017 ,  H05K5/03

Abstract: Embodiments of 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 up to t, comprise a tangent with a slope having an absolute value greater than about 0.1 MPa/micrometer, are disclosed. 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 in the range from about 80 MPa to about 100 MPa. In some embodiments, the concentration of metal oxide or alkali metal oxide decreases from the first surface to a value at a point between the first surface and the second surface and increases from the value 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.

公开(公告)号：US20230015444A1

公开(公告)日：2023-01-19

申请号：US17899168

申请日：2022-08-30

Applicant: CORNING INCORPORATED

Inventor： Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: C03C21/00 ,  C03C3/091 ,  C03C10/00 ,  C03C23/00 ,  C03C3/093 ,  C03C3/097

Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and. an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.

公开(公告)号：US11465937B2

公开(公告)日：2022-10-11

申请号：US17147663

申请日：2021-01-13

Applicant: CORNING INCORPORATED

Inventor： Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: C03C21/00 ,  C03C3/091 ,  C03C10/00 ,  C03C23/00 ,  C03C3/093 ,  C03C3/097

Abstract: A glass-based article may include from about 45 mol. % to about 80 mol. % SiO2; from about 0 mol. % to about 10 mol. % Na2O; less than about 5 mol. % K2O; a non-zero amount of Al2O; and an amorphous phase and a crystalline phase. The article may further in include a stress profile comprising a surface compressive stress (CS) and a maximum central tension (CT). A ratio of Li2O (mol. %) to R2O (mol. %) in the article is from about 0.5 to about 1, where R2O is the sum of Li2O, Na2O, and K2O in the article. CT may be greater than or equal to about 50 MPa and less than about 100 MPa. CS may be greater than 2.0·CT. A depth of compression (DOC) of the stress profile may be greater than or equal to 0.14·t and less than or equal to 0.25·t, where t is the thickness of the article.

公开(公告)号：US11459270B2

公开(公告)日：2022-10-04

申请号：US16835789

申请日：2020-03-31

Applicant: CORNING INCORPORATED

Inventor： Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: C03C21/00 ,  C03C3/091 ,  C03C10/00 ,  C03C23/00 ,  C03C3/093 ,  C03C3/097

Abstract: Embodiments of 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 0.7·t, comprise a tangent that is less than about −0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers, are disclosed. 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). 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.

公开(公告)号：US11192818B2

公开(公告)日：2021-12-07

申请号：US16202588

申请日：2018-11-28

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  John Philip Finkeldey ,  Alexandra Mitchell ,  Charlene Marie Smith ,  Steven Alvin Tietje

IPC: C03C10/00 ,  C03C4/18 ,  C03C21/00 ,  C03B32/02 ,  H05K5/03 ,  H05K5/00 ,  C03C4/00 ,  C03C3/085 ,  C03C3/11 ,  C03C3/062 ,  B65D13/02 ,  B65D1/02

Abstract: A transparent gahnite-spinel glass ceramic is provided. The glass ceramic includes a first crystal phase including (MgxZn1−x)Al2O4 where x is less than 1 and a second crystal phase including tetragonal ZrO2. The glass ceramic may be ion exchanged. Methods for producing the glass ceramic are also provided.

公开(公告)号：US20210002168A1

公开(公告)日：2021-01-07

申请号：US17025592

申请日：2020-09-18

Applicant: CORNING INCORPORATED

Inventor： Matthew John Dejneka ,  Sinue Gomez ,  Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

IPC: C03C21/00 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C10/00 ,  H05K5/00 ,  H05K5/03

Abstract: A glass-based article includes an amorphous phase and a crystalline phase, and a first surface and a second surface opposing the first surface thereby defining a thickness (t) of the glass-based article. The glass-based article has a stress profile with a surface compressive stress (CS) and a maximum central tension (CT). The maximum CT is greater than or equal to 80 MPa and less than or equal to 95 MPa, and the maximum CT is positioned within the glass-based article at a range from greater than or equal to 0.4·t and less than or equal to 0.6·t. The surface CS of the glass-based article is greater than or equal to 200 MPa; and a depth of compression (DOC) is from greater than or equal to 0.14·t and less than or equal to 0.25·t.

公开(公告)号：US20200062640A1

公开(公告)日：2020-02-27

申请号：US16667083

申请日：2019-10-29

Applicant: CORNING INCORPORATED

Inventor： George Halsey Beall ,  Matthew John Dejneka ,  Sinue Gomez ,  Charlene Marie Smith ,  Steven Alvin Tietje

IPC: C03C14/00 ,  C03B20/00 ,  C03C21/00 ,  C03C10/00 ,  C03C4/02 ,  C03C3/097 ,  C03C3/093 ,  C03C3/085 ,  C03B32/02

Abstract: Disclosed herein are glass-ceramics having crystalline phases including β-spodumene ss and either (i) pseudobrookite or (ii) vanadium or vanadium containing compounds so as to be colored and opaque glass-ceramics having coordinates, determined from total reflectance—specular included—measurements, in the CIELAB color space of the following ranges: L*=from about 20 to about 45; a*=from about −2 to about +2; and b*=from about −12 to about +1. Such CIELAB color space coordinates can be substantially uniform throughout the glass-ceramics. In each of the proceeding, β-quartz ss can be substantially absent from the crystalline phases. If present, β-quartz ss can be less than about 20 wt % or, alternatively, less than about 15 wt % of the crystalline phases. Also Further crystalline phases might include spinel ss (e.g., hercynite and/or gahnite-hercynite ss), rutile, magnesium zinc phosphate, or spinel ss (e.g., hercynite and/or gahnite-hercynite ss) and rutile.