Tough glass composite and method
US12358837B2 · kind B2 · utility
0Cited by
8References
17Claims
0Family size
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Key dates
| Filing date | Oct 25, 2019 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jul 3, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/085
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments of a glass substrate including an alkali-containing bulk and an alkali-depleted surface layer, including a substantially homogenous composition with at least 51 mol % Al2O3 are disclosed. In some embodiments, the alkali-depleted surface layer includes about 0.5 atomic % alkali or less. The alkali-depleted surface layer can be substantially free of hydrogen and/or crystallites. Methods for forming a glass substrate with a modified surface layer are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.