ION EXCHANGE PROCESS FOR ULTRA-THIN GLASS

    公开(公告)号:US20220289623A1

    公开(公告)日:2022-09-15

    申请号:US17637648

    申请日:2020-08-12

    Abstract: A method of chemically strengthening a glass-based article via ion exchange, wherein the glass-based article has a thickness of less than about 300 mm. The glass-based article may be chemically strengthened by ion exchanged to achieve a depth of compression DOC ranging from about 5 mm to about 60 mm and a peak compressive stress in a range from about 300 MPa to about 2000 MPa. The high peak compressive stress provides the ability to withstand the stresses associated with bending and to resist damage caused by impact. Additionally, the glass-based article retains net compression to contain surface flaws when the glass is subjected to bending around a tight radius in use, for example, as cover glass in flexible and foldable displays.

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