- 专利标题: LOW CRYSTALLINITY GLASS-CERAMICS
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申请号: US15880030申请日: 2018-01-25
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公开(公告)号: US20180148370A1公开(公告)日: 2018-05-31
- 发明人: David Eugene Baker , Matthew John Dejneka , Indrajit Dutta , Robert Michael Morena , Charlene Marie Smith
- 申请人: CORNING INCORPORATED
- 主分类号: C03C10/00
- IPC分类号: C03C10/00 ; C03C3/091 ; C03C3/093 ; C03C21/00 ; C03C4/02 ; C03C3/097
摘要:
Embodiments of the present disclosure pertain to crystallizable glasses and glass-ceramics that exhibit a black color and are opaque. In one or more embodiments, the crystallizable glasses and glass-ceramics include a precursor glass composition that exhibits a liquidus viscosity of greater than about 20 kPa*s. The glass-ceramics exhibit less than about 20 wt % of one or more crystalline phases, which can include a plurality of crystallites in the Fe2O3—TiO2—MgO system and an area fraction of less than about 15%. Exemplary compositions used in the crystallizable glasses and glass-ceramics include, in mol %, SiO2 in the range from about 50 to about 76, Al2O3 in the range from about 4 to about 25, P2O5+B2O3 in the range from about 0 to about 14, R2O in the range from about 2 to about 20, one or more nucleating agents in the range from about 0 to about 5, and RO in the range from about 0 to about 20.
公开/授权文献
- US10604441B2 Low crystallinity glass-ceramics 公开/授权日:2020-03-31