CRYSTALLIZED GLASS
    8.
    发明公开
    CRYSTALLIZED GLASS 审中-实审

    公开(公告)号:EP4403531A1

    公开(公告)日:2024-07-24

    申请号:EP22867082.4

    申请日:2022-07-12

    申请人: Ohara, Inc.

    发明人: ODA, Nozomu

    CPC分类号: C03C21/00 C03B32/02 C03C10/00

    摘要: Provided is a very strong and transparent crystallized glass. This crystallized glass is characterized by containing, by oxide-equivalent mass%, 40.0-55.0% of a SiO2 component, 10.0-30.0% of an Al2O3 component, 10.0-30.0% of a MgO component, 5.0-15.0% of a TiO2 component, and more than 0% and up to 8.0% of a Na2O component, where the Vickers hardness (Hv) is 700 or higher and the spectral transmittance at 400 nm is 50% or higher with regard to a 1 mm-thick sample.