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    Strengthened glass articles and methods of forming the same
    1.
    发明授权
    Strengthened glass articles and methods of forming the same 有权

    公开(公告)号：US11807573B2

    公开(公告)日：2023-11-07

    申请号：US17893798

    申请日：2022-08-23

    Applicant: CORNING INCORPORATED

    Inventor： Yuhui Jin ,  Joshua James McCaslin ,  Jong Se Park ,  Vitor Marino Schneider ,  Wei Sun

    IPC: B32B15/04 ,  B32B17/06 ,  C03C21/00 ,  C03C3/083

    CPC classification number: C03C21/002 ,  C03C3/083

    Abstract: A glass article (and methods for forming the same) includes a glass body having first and second opposing primary surfaces and a thickness defined between the primary surfaces. The glass body includes a compressive stress region that includes: a surface stress of greater than about 900 MPa (compressive), a spike region having a first slope, and a tail region having a second slope. The spike region and the tail region can intersect at a knee region having a stress of greater than about 35 MPa (compressive), wherein the stress at the knee region is defined as the point where the asymptotic extrapolation of the spike region and the tail region intersect. The first slope of the spike region can be steeper than about −30 MPa/μm.

    STRENGTHENED GLASS ARTICLES AND METHODS OF FORMING THE SAME
    4.
    发明申请
    STRENGTHENED GLASS ARTICLES AND METHODS OF FORMING THE SAME 有权

    公开(公告)号：US20220402815A1

    公开(公告)日：2022-12-22

    申请号：US17893798

    申请日：2022-08-23

    Applicant: CORNING INCORPORATED

    Inventor： Yuhui Jin ,  Joshua James McCaslin ,  Jong Se Park ,  Vitor Marino Schneider ,  Wei Sun

    IPC: C03C21/00 ,  C03C3/083

    Abstract: A glass article (and methods for forming the same) includes a glass body having first and second opposing primary surfaces and a thickness defined between the primary surfaces. The glass body includes a compressive stress region that includes: a surface stress of greater than about 900 MPa (compressive), a spike region having a first slope, and a tail region having a second slope. The spike region and the tail region can intersect at a knee region having a stress of greater than about 35 MPa (compressive), wherein the stress at the knee region is defined as the point where the asymptotic extrapolation of the spike region and the tail region intersect. The first slope of the spike region can be steeper than about −30 MPa/μm.

    FRANGIBLE GLASS ARTICLES AND METHODS OF MAKING THE SAME
    5.
    发明申请
    FRANGIBLE GLASS ARTICLES AND METHODS OF MAKING THE SAME 有权

    公开(公告)号：US20210395141A1

    公开(公告)日：2021-12-23

    申请号：US17354149

    申请日：2021-06-22

    Applicant: CORNING INCORPORATED

    Inventor： Jason Thomas Harris ,  Joshua James McCaslin ,  Naveen Prakash ,  Vitor Marino Schneider ,  Charandeep Singh ,  Ross Johnson Stewart

    IPC: C03C21/00 ,  B32B17/06 ,  B32B7/12 ,  B32B5/14

    Abstract: Frangible glass articles having a fracture behavior that resists ejection of glass particles upon fracture. In some embodiments, the frangible glass articles can have a first surface region with a first elastic compressive stress energy per unit area of glass (Welcomp1), a second surface region with a second elastic compressive stress energy per unit area of glass (Welcomp2), and a central region with an elastic tensile stress energy per unit area of glass (WT), where (Welcomp1+Welcomp2)−WT≤25 J/m2. In some embodiments, the frangible glass articles can have a total load ratio (Wi/GD) less than 6.5 and a total elastic compressive stress energy per unit area of glass (WC) less than 60% of a total load (Wi), where: WC=Welcomp1+Welcomp2, Wi=WC+WT, GD=4G1C, and G 1 ⁢ C = K 1 ⁢ C 2 ⁡ ( 1 - v 2 ) E . In some embodiments, the frangible glass articles can have a differential load ratio (Wd/GIC) less than 7 ⁢ 2 ⁢ e ( - 1 ⁢ 2 ⁢ d ⁢ 1 t ) .

    Strengthened glass articles and methods of forming the same
    6.
    发明授权
    Strengthened glass articles and methods of forming the same 有权

    公开(公告)号：US11434167B2

    公开(公告)日：2022-09-06

    申请号：US17318547

    申请日：2021-05-12

    Applicant: CORNING INCORPORATED

    Inventor： Yuhui Jin ,  Joshua James McCaslin ,  Jong Se Park ,  Vitor Marino Schneider ,  Wei Sun

    IPC: B32B15/04 ,  B32B17/06 ,  C03C21/00 ,  C03C3/083

    Abstract: A glass article (and methods for forming the same) includes a glass body having first and second opposing primary surfaces and a thickness defined between the primary surfaces. The glass body includes a compressive stress region that includes: a surface stress of greater than about 900 MPa (compressive), a spike region having a first slope, and a tail region having a second slope. The spike region and the tail region can intersect at a knee region having a stress of greater than about 35 MPa (compressive), wherein the stress at the knee region is defined as the point where the asymptotic extrapolation of the spike region and the tail region intersect. The first slope of the spike region can be steeper than about −30 MPa/μm.

    STRENGTHENED GLASS ARTICLES AND METHODS OF FORMING THE SAME
    7.
    发明申请
    STRENGTHENED GLASS ARTICLES AND METHODS OF FORMING THE SAME 有权

    公开(公告)号：US20210355026A1

    公开(公告)日：2021-11-18

    申请号：US17318547

    申请日：2021-05-12

    Applicant: CORNING INCORPORATED

    Inventor： Yuhui Jin ,  Joshua James McCaslin ,  Jong Se Park ,  Vitor Marino Schneider ,  Wei Sun

    IPC: C03C21/00

    Abstract: A glass article (and methods for forming the same) includes a glass body having first and second opposing primary surfaces and a thickness defined between the primary surfaces. The glass body includes a compressive stress region that includes: a surface stress of greater than about 900 MPa (compressive), a spike region having a first slope, and a tail region having a second slope. The spike region and the tail region can intersect at a knee region having a stress of greater than about 35 MPa (compressive), wherein the stress at the knee region is defined as the point where the asymptotic extrapolation of the spike region and the tail region intersect. The first slope of the spike region can be steeper than about −30 MPa/μm.

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