| abstract |
The invention discloses a preparation method of transparent fluorescent ceramics based on the introduction of strong covalent bonds into strong covalent bonds to emit warm white light based on high temperature resistant red fluorescent powder. Auxiliaries, dispersants and solvents are mixed, and the obtained slurry is dried and ground, and then put into a tablet press for dry pressing. , Grinding and polishing to obtain Ce:YAG fluorescent ceramics that can emit warm white light. The present invention adopts the method of "blue LED chip+yellow Ce:YAG fluorescent ceramics" to generate white light, and adds an appropriate amount of Eu:(Sr,Ca)AlSiN 3 fluorescent powder therein to warm the white light. |