Magnesium aluminosilicate glasses with high fracture toughness
US11827556B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Nov 12, 2020 |
| Grant date | Nov 28, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C21/002
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A glass composition includes: Si2O, greater than 0 mol % to less than or equal to 24 mol % Al2O3, B2O3, K2O, greater than or equal to 10 mol % to less than or equal to 38 mol % MgO, Na2O, and Li2O. The glass composition may have a fracture toughness of greater than or equal 0.80 MPa√m and a Young's modulus of greater than or equal to 80 GPa to less than or equal to 120 GPa. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.