GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

    公开(公告)号:US20230348322A1

    公开(公告)日:2023-11-02

    申请号:US18212661

    申请日:2023-06-21

    摘要: 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.

    FUSION-FORMABLE GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

    公开(公告)号:US20230097645A1

    公开(公告)日:2023-03-30

    申请号:US17953668

    申请日:2022-09-27

    摘要: 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.

    GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

    公开(公告)号:US20220212985A1

    公开(公告)日:2022-07-07

    申请号:US17695948

    申请日:2022-03-16

    摘要: 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.

    Glasses and glass ceramics including a metal oxide concentration gradient

    公开(公告)号:US10532947B2

    公开(公告)日:2020-01-14

    申请号:US16299646

    申请日:2019-03-12

    摘要: 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.

    GLASSES AND GLASS CERAMICS INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

    公开(公告)号:US20180002223A1

    公开(公告)日:2018-01-04

    申请号:US15708783

    申请日:2017-09-19

    摘要: 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.

    GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT

    公开(公告)号:US20170291849A1

    公开(公告)日:2017-10-12

    申请号:US15482213

    申请日:2017-04-07

    IPC分类号: C03C21/00 H05K5/03 H05K5/00

    摘要: 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.

    WHITE, OPAQUE, ß-SPODUMENE/RUTILE GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME
    10.
    发明申请
    WHITE, OPAQUE, ß-SPODUMENE/RUTILE GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME 审中-公开
    白色,OPAQUE,ß-SPODUMENE / RUTILE GLASS-CERAMIC ARTICLES AND METHODS FOR MAKING THE SAME

    公开(公告)号:US20140057092A1

    公开(公告)日:2014-02-27

    申请号:US14068558

    申请日:2013-10-31

    IPC分类号: C03C14/00 C03B20/00

    摘要: Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 62-75 SiO2; 10.5-17 Al2O3; 5-13 Li2O; 0-4 ZnO; 0-8 MgO; 2-5 TiO2; 0-4 B2O3; 0-5 Na2O; 0-4 K2O; 0-2 ZrO2; 0-7 P2O5; 0-0.3 Fe2O3; 0-2 MnOx; and 0.05-0.2 SnO2. Additionally, these glasses and glass-ceramics exhibit the following criteria: a. a ratio: [ Li 2  O + Na 2  O + K 2  O + MgO + ZnO ] [ Al 2  O 3 + B 2  O 3 ] between 0.7 to 1.5; b. a   ratio  :  [ TiO 2 + SnO 2 ] [ SiO 2 + B 2  O 3 ] greater than 0.04. Furthermore, the glass-ceramics exhibit an opacity ≧about 85% over the wavelength range of 400-700 nm for an about 0.8 mm thickness and colors an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance included of a* between −3 and +3, b* between −6 and +6, and L* between 88 and 97.

    摘要翻译: 公开了可结晶玻璃,玻璃陶瓷,IXable玻璃陶瓷和IX玻璃陶瓷。 玻璃陶瓷显示出β-锂辉石为主要结晶相。 这些玻璃和玻璃陶瓷(摩尔%)包括:62-75SiO 2; 10.5-17 Al2O3; 5-13 Li2O; 0-4 ZnO; 0-8 MgO; 2-5 TiO2; 0-4 B2O3; 0-5 Na2O; 0-4 K2O 0-2 ZrO2; 0-7 P2O5; 0-0.3 Fe2O3; 0-2 MnOx; 和0.05-0.2 SnO2。 另外,这些玻璃和玻璃陶瓷具有以下标准:a。 比例:0.7〜1.5的[Li 2 O + Na 2 O + K 2 O + MgO + ZnO] [Al 2 O 3 + B 2 O 3] b。 比例:[TiO 2 + SnO 2] [SiO 2 + B 2 O 3]大于0.04。 此外,玻璃陶瓷在400-700nm的波长范围内表现出大约85%的不透明度,约0.8mm厚度,并且观察角度为10°,CIE光源F02由包含a * 在-3和+3之间,b *在-6和+6之间,L *在88和97之间。