Method of producing beta-sialon fluorescent material
US10894917B2 · kind B2 · utility
2Cited by
3References
20Claims
0Family size
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Key dates
| Filing date | May 26, 2017 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Jul 31, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K11/7734
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Provided is a method of producing a β-sialon fluorescent material having a high light emission intensity and an excellent light emission luminance. The method includes preparing a calcined product having a composition of β-sialon containing an activating element; grinding the calcined product to obtain a ground product; and heat-treating the ground product to obtain a heat-treated product. A specific surface area of the ground product is 0.2 m2/g or more.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.