Invention Grant
- Patent Title: White, opaque, β-spodumene glass-ceramic articles with tunable color and methods for making the same
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Application No.: US16000186Application Date: 2018-06-05
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Publication No.: US10584056B2Publication Date: 2020-03-10
- Inventor: Qiang Fu , Charlene Marie Smith
- 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: C03C10/00
- IPC: C03C10/00 ; C03B32/02 ; C03C21/00 ; C03C3/093 ; C03C4/02

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: 62-75 SiO2; 10.5-18 Al2O3; 5-14 Li2O; 2-12 B2O3; and 0.4-2 Fe2O3. Additionally, these glasses and glass-ceramics can exhibit the following criteria: a ratio: [ Li 2 O + Na 2 O + K 2 O + MgO + ZnO ] [ Al 2 O 3 ] between 0.8 to 1.5. The glass-ceramics also exhibit colors at an observer angle of 10° and a CIE illuminant F02 determined with specular reflectance of a* between −0.5 and 0.5, b* between −2.5 and +2, and L* between 90 and 93.
Public/Granted literature
- US20180282205A1 WHITE, OPAQUE, B-SPODUMENE GLASS-CERAMIC ARTICLES WITH TUNABLE COLOR AND METHODS FOR MAKING THE SAME Public/Granted day:2018-10-04
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