Transparent tantalum oxide glass-ceramics and transparent aluminum tantalate glass-ceramics
US11168020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2019 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Feb 5, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2204/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A transparent glass-ceramic composition including: of the formula Ta2-xAlxO5-x where x is less than 1; of the formula AlTaO4; of the formula AlPO4; a mixture of AlTaO4 and AlPO4; or a mixture of the formula Ta2-xAlxO5-x, AlTaO4, and AlPO4. Also disclosed are transparent glass-ceramic compositions including, for example, a dopant as defined herein, or a supplemental metal oxide or metalloid oxide of MxOy, MxM′x′Oy, or a mixture thereof such as oxides of Nb, Ti, W, B, or Ga, as defined herein. Also disclosed are methods of making the disclosed transparent glass-ceramic compositions, and optical articles, optical components, and optical apparatus thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.