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    GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT
    2.
    发明申请
    GLASS-BASED ARTICLES INCLUDING A METAL OXIDE CONCENTRATION GRADIENT 有权

    公开(公告)号：US20220212985A1

    公开(公告)日：2022-07-07

    申请号：US17695948

    申请日：2022-03-16

    申请人： CORNING INCORPORATED

    发明人： Matthew John Dejneka ,  Sinue Gomez-Mower ,  Guangli Hu ,  Charlene Marie Smith ,  Zhongzhi Tang ,  Steven Alvin Tietje

    IPC分类号： C03C21/00 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C10/00 ,  H05K5/00 ,  H05K5/03

    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.