Method of manufacturing a green phosphor
US4469619A · kind A · utility
30Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7774
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for manufacturing a luminescent material having the formula: EQU Y.sub.3 Al.sub.5 O.sub.12 : Tb in which the raw materials for the synthesis are combined in appropriate amounts together with a flux consisting of barium fluoride, barium chloride, or mixtures of the two and then heated in a sealed state to a temperature between about 1300.degree. C. and 1600.degree. C. The resultant product is then leached with an alkaline or acid solution to remove the residual flux from the product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.