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Complex-phase fluorescent ceramic material and preparation method thereof
The invention discloses a complex-phase fluorescent ceramic and a preparation method thereof, the chemical general formula of the fluorescent ceramic is Ca < 1-x > MnxO-(Re1-yCey) 3Al5O12, x is more than or equal to 0.04 and less than or equal to 0.08, 0 lt, y is more than or equal to 0.04 and less than or equal to 0.05, and t is more than or equal to 0. Yt; Yt; 0.01, Re < 3 + > is one of Lu < 3 + >, Y < 3 + > or Gd < 3 + >, the mass ratio of Ca1-xMnxO to (Re1-yCey) 3Al5O12 is (10-25): (75-90), Ca1-xMnxO powder is prepared through a high-temperature solid-phase method, the obtained powder and (Re1-yCey) 3Al5O12 raw material powder are mixed, the Ca1-xMnxO-(Re1-yCey) 3Al5O12 multiphase fluorescent ceramic is prepared through a solid-phase reaction sintering method, CaO: Mn is wrapped in the (Re1-yCey) 3Al5O12 ceramic, the problem that CaO is prone to absorbing moisture can be effectively avoided, and the Ca1-xMnxO-( The multiphase fluorescent ceramic emits Ce < 3 + > yellow-green fluorescence with the dominant wavelength of 510-565 nm and Mn < 2 + > orange fluorescence with the dominant wavelength of 600-630 nm at the same time under excitation of blue laser with the wavelength of 440-460 nm, the heat conductivity can reach 14-20 Wm <-1 > K <-1 > at the room temperature, the heat conductivity is high, when the pumping density of the blue laser is 50-80 W/mm < 2 >, the relative light conversion efficiency of the multiphase fluorescent ceramic is 99%-99.8% of the initial efficiency, and the relative light conversion efficiency of the multiphase fluorescent ceramic is 99%-99.8% of the initial efficiency. The color rendering index is 80-95, and the light emitting stability and the light color quality can be improved under excitation of high pumping power density.
本发明公开了一种复相荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为Ca1‑xMnxO‑(Re1‑yCey)3Al5O12，其中，0.04≤x≤0.08，0
Complex-phase fluorescent ceramic material and preparation method thereof
The invention discloses a complex-phase fluorescent ceramic and a preparation method thereof, the chemical general formula of the fluorescent ceramic is Ca < 1-x > MnxO-(Re1-yCey) 3Al5O12, x is more than or equal to 0.04 and less than or equal to 0.08, 0 lt, y is more than or equal to 0.04 and less than or equal to 0.05, and t is more than or equal to 0. Yt; Yt; 0.01, Re < 3 + > is one of Lu < 3 + >, Y < 3 + > or Gd < 3 + >, the mass ratio of Ca1-xMnxO to (Re1-yCey) 3Al5O12 is (10-25): (75-90), Ca1-xMnxO powder is prepared through a high-temperature solid-phase method, the obtained powder and (Re1-yCey) 3Al5O12 raw material powder are mixed, the Ca1-xMnxO-(Re1-yCey) 3Al5O12 multiphase fluorescent ceramic is prepared through a solid-phase reaction sintering method, CaO: Mn is wrapped in the (Re1-yCey) 3Al5O12 ceramic, the problem that CaO is prone to absorbing moisture can be effectively avoided, and the Ca1-xMnxO-( The multiphase fluorescent ceramic emits Ce < 3 + > yellow-green fluorescence with the dominant wavelength of 510-565 nm and Mn < 2 + > orange fluorescence with the dominant wavelength of 600-630 nm at the same time under excitation of blue laser with the wavelength of 440-460 nm, the heat conductivity can reach 14-20 Wm <-1 > K <-1 > at the room temperature, the heat conductivity is high, when the pumping density of the blue laser is 50-80 W/mm < 2 >, the relative light conversion efficiency of the multiphase fluorescent ceramic is 99%-99.8% of the initial efficiency, and the relative light conversion efficiency of the multiphase fluorescent ceramic is 99%-99.8% of the initial efficiency. The color rendering index is 80-95, and the light emitting stability and the light color quality can be improved under excitation of high pumping power density.
本发明公开了一种复相荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为Ca1‑xMnxO‑(Re1‑yCey)3Al5O12，其中，0.04≤x≤0.08，0
Complex-phase fluorescent ceramic material and preparation method thereof
一种复相荧光陶瓷材料及其制备方法
SUN BINGHENG (author) / SHEN FANGLIANG (author) / HAO HAOYING (author) / CHEN YUE (author) / FAN JINTAI (author) / ZHANG LONG (author)
2024-10-25
Patent
Electronic Resource
Chinese
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