ION EXCHANGEABLE GLASS COMPOSITIONS HAVING IMPROVED MECHANICAL DURABILITY

    公开(公告)号:US20240174551A1

    公开(公告)日:2024-05-30

    申请号:US18517504

    申请日:2023-11-22

    IPC分类号: C03C3/097

    CPC分类号: C03C3/097 C03C2203/10

    摘要: A glass composition includes: from 55 mol % to 70 mol % SiO2; from 12.5 mol % to 17.25 mol % Al2O3; from 0.1 mol % to 3.5 mol % P2O5; from 0 mol % to 5.5 mol % B2O3; from 6 mol % to 10 mol % Li2O; from 3 mol % to 10 mol % Na2O; from 0 mol % to 3 mol % TiO2; from 0 mol % to 3 mol % WO3; and from 0 mol % to 3 mol % Y2O3. The sum of Al2O3 and B2O3 in the glass composition may be from 12.5 mol % to 22.5 mol %. The sum of TiO2, WO3, and Y2O3 in the glass composition may be from 0.2 mol % to 3 mol %.

    ION EXCHANGEABLE GLASSES HAVING HIGH FRACTURE TOUGHNESS

    公开(公告)号:US20240002278A1

    公开(公告)日:2024-01-04

    申请号:US18039349

    申请日:2021-11-24

    IPC分类号: C03C3/095 C03C21/00

    CPC分类号: C03C3/095 C03C21/002 H05K5/03

    摘要: A glass composition includes greater than or equal to 50 mol % to less than or equal to 60 mol % SiO2; greater than or equal to 6 mol % to less than or equal to 30 mol % Al2O3; greater than or equal to 8 mol % Li2O; and greater than or equal to 2.5 mol % Y2O3. The glass is characterized by the relationship Al2O3—Li2O—Y2O3≥2 mol %. The glass composition may have a fracture toughness of greater than or equal 0.90 MPa√m. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product.

    FUSION FORMABLE HIGH FRACTURE TOUGHNESS GLASSES

    公开(公告)号:US20230143992A1

    公开(公告)日:2023-05-11

    申请号:US17983807

    申请日:2022-11-09

    IPC分类号: C03C3/097 C03C21/00

    摘要: A glass composition includes: greater than or equal to 56 mol % to less than or equal to 70 mol % SiO2; greater than or equal to 12 mol % to less than or equal to 20 mol % Al2O3; greater than or equal to 0 mol % to less than or equal to 4 mol % P2O5; greater than or equal to 0 mol % to less than or equal to 8 mol % B2O3; greater than or equal to 6 mol % to less than or equal to 12 mol % Li2O; greater than or equal to 4 mol % to less than or equal to 12 mol % Na2O; greater than or equal to 0.4 mol % to less than or equal to 3 mol % K2O; greater than or equal to 2 mol % to less than or equal to 6 mol % MgO; greater than or equal to 0.25 mol % to less than or equal to 6 mol % CaO; greater than or equal to 0 mol % to less than or equal to 3 mol % SrO; greater than or equal to 0 mol % to less than or equal to 5 mol % ZnO; and greater than or equal to 0 mol % to less than or equal to 1 mol % ZrO2. The glass composition may have a fracture toughness of greater than or equal 0.75 MPa·m0.5 and a Young's modulus of greater than or equal to 80 GPa. The glass composition is chemically strengthenable. The glass composition may be used in a glass-based article or a consumer electronic product.