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    SAPPHIRE COVER WITH INCREASED SURVIVABILITY
    53.
    发明申请
    SAPPHIRE COVER WITH INCREASED SURVIVABILITY 审中-公开
    SAPPHIRE覆盖层具有增加的生存性

    公开(公告)号：US20160378143A1

    公开(公告)日：2016-12-29

    申请号：US15192725

    申请日：2016-06-24

    Applicant: CORNING INCORPORATED

    Inventor： Kevin Barry Reiman

    IPC: G06F1/16 ,  G06F3/044

    CPC classification number: G06F3/039 ,  G06F1/1656 ,  G06F3/041 ,  G06F2200/1634

    Abstract: A sapphire article having improved survivability when subjected to impact or a drop event. The article includes a continuous planar array of sapphire segments, which reduces the bending stress experienced by each individual segment. The sapphire article may serve as a cover material for displays in mobile electronic devices.

    Abstract translation: 蓝宝石制品在受到冲击或跌落事件时具有提高的生存能力。 该物品包括蓝宝石段的连续平面阵列，其减少了每个单独段所经历的弯曲应力。 蓝宝石制品可以用作移动电子设备中的显示器的覆盖材料。

    STRENGTHENED GLASS WITH DEEP DEPTH OF COMPRESSION
    55.
    发明申请
    STRENGTHENED GLASS WITH DEEP DEPTH OF COMPRESSION 审中-公开
    强化玻璃与深度深度的压缩

    公开(公告)号：US20150239775A1

    公开(公告)日：2015-08-27

    申请号：US14530073

    申请日：2014-10-31

    Applicant: Corning Incorporated

    Inventor： Jaymin Amin ,  Benedict Osobomen Egboiyi ,  Jonathan David Pesansky ,  Kevin Barry Reiman ,  Rostislav Vatchev Roussev ,  Brian Paul Strines

    IPC: C03C21/00 ,  C03C3/097

    CPC classification number: C03C21/002 ,  C03C3/04 ,  C03C3/085 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  C03C3/095 ,  C03C3/097 ,  C03C4/18 ,  C03C21/00 ,  C03C2204/00 ,  G06F1/1637 ,  G06F2200/1634 ,  H04B1/3827 ,  Y10T428/315

    Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of at least about 45 μm within the article are provided. In one embodiment, the compressive stress profile includes a single linear segment extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile includes two linear portions: the first portion extending from the surface to a relatively shallow depth and having a steep slope; and a second portion extending from the shallow depth to the depth of compression. The strengthened glass has a 60% survival rate when dropped from a height of 80 cm in an inverted ball drop test and an equibiaxial flexural strength of at least 10 kgf as determined by abraded ring-on-ring testing. Methods of achieving such stress profiles are also described.

    Abstract translation: 提供了具有从制品表面延伸到制品内至少约45μm深度的至少一个深度压缩层的化学强化的玻璃制品。 在一个实施例中，压缩应力分布包括从表面延伸到压缩DOC深度的单个线性段。 或者，压缩应力分布包括两个线性部分：第一部分从表面延伸到相对较浅的深度并且具有陡峭的斜率; 以及从浅深度延伸到压缩深度的第二部分。 加强玻璃在倒置球滴试验中从80厘米的高度下降至60厘米的存活率，并且通过磨损的环上环试验确定的至少10kgf的等轴弯曲强度。 还描述了实现这种应力分布的方法。

    Stress profiles of glass-based articles having improved drop performance
    56.
    发明授权
    Stress profiles of glass-based articles having improved drop performance 有权

    公开(公告)号：US12122703B2

    公开(公告)日：2024-10-22

    申请号：US17480394

    申请日：2021-09-21

    Applicant: CORNING INCORPORATED

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

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

    CPC classification number: C03C10/0027 ,  C03C3/097 ,  C03C21/002 ,  C03C2201/50 ,  C03C2204/00

    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 0.22t, and a parabolic region originating at the DOC and extending to the center of the glass-based article.

    GLASS-BASED ARTICLES INCLUDING A STRESS PROFILE COMPRISING TWO REGIONS
    59.
    发明申请
    GLASS-BASED ARTICLES INCLUDING A STRESS PROFILE COMPRISING TWO REGIONS 有权

    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

    IPC: H05K5/02 ,  C03C3/093 ,  C03C3/097 ,  C03C21/00 ,  H05K5/00 ,  H05K5/03

    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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