Invention Grant
- Patent Title: White, opaque, β-spodumene glass-ceramic articles with inherent damage resistance and methods for making the same
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Application No.: US16257529Application Date: 2019-01-25
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Publication No.: US10781131B2Publication Date: 2020-09-22
- Inventor: George Halsey Beall , Qiang Fu , Charlene Marie Smith , Randall Eugene Youngman
- Applicant: CORNING INCORPORATED
- Applicant Address: US NY Corning
- Assignee: CORNING INCORPORATED
- Current Assignee: CORNING INCORPORATED
- Current Assignee Address: US NY Corning
- Agent Kevin M. Johnson
- Main IPC: C03C10/12
- IPC: C03C10/12 ; C03B32/02 ; C03C10/00 ; C03C21/00 ; C03C3/093 ; C03C3/097
Abstract:
Crystallizable glasses, glass-ceramics, IXable glass-ceramics, and IX glass-ceramics are disclosed. The glass-ceramics exhibit β-spodumene ss as the predominant crystalline phase. These glasses and glass-ceramics, in mole %, include: 60-75 SiO2; 10-18 Al2O3; 5-14 Li2O; and 4.5 B2O3. The glass-ceramics also have a Vickers initiation crack threshold of at least about 25 kgf.
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