Preparation method and use of yellow fluorescent glass ceramic
US12172930B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2019 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Sep 2, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9661
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A preparation method and use of a yellow fluorescent glass ceramic are disclosed. The preparation method includes: mixing a monomer, a cross-linking agent and a filling solvent evenly, then adding fumed silica and stirring evenly, further adding an ultraviolet (UV) photoinitiator and an UV absorber, and stirring thoroughly; adding a yellow phosphor (Y,Gd)AG:Ce, stirring thoroughly and defoaming to obtain a slurry; introducing the slurry into a mold, and curing by UV irradiation or three-dimensional (3D) printing to obtain a body; putting the body into a high-temperature furnace for heating to obtain a phosphor-embedded porous silica glass; putting the porous silica glass into a high-temperature vacuum furnace for densification and sintering to obtain a densified fluorescent glass ceramic; and finally cutting and surface-polishing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.