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Three-phase fluorescent ceramic with high thermal conductivity and high thermal stability for laser illumination and preparation method of three-phase fluorescent ceramic
The invention discloses a three-phase fluorescent ceramic with high thermal conductivity and high thermal stability for laser illumination and a preparation method of the three-phase fluorescent ceramic, and the three-phase fluorescent ceramic is prepared by taking Ce: LuAG powder and MgO powder as ceramic raw material powder and adopting a spark plasma sintering method. The three-phase fluorescent ceramic takes Ce: LuAG-MgAl2O4-MgO and Ce: LuAG as a ceramic main body, both MgAl2O4 and MgO are high heat conduction phases, high-brightness broadband yellow light near 550 nm is emitted under excitation of a blue light LD chip near 455 nm in wavelength, the heat conductivity is 28 Wm <-1 > K <-1 >-32 Wm <-1 > K <-1 >, the emission intensity is only lost by 1.4%-3.4% at the temperature of 150 DEG C, the emission intensity is only lost by 3.2%-5.8% at the temperature of 250 DEG C, the three-phase fluorescent ceramic has high heat conductivity and high heat stability, and the three-phase fluorescent ceramic can be widely applied to the field of light emitting devices. And the preparation method is simple, short in time consumption and low in sintering temperature, and can be applied to high-power LED/LDs devices.
本发明公开了一种激光照明用高导热高热稳定性三相荧光陶瓷及其制备方法，以Ce:LuAG粉体、MgO粉体作为陶瓷原料粉体，采用放电等离子烧结法制备得到。该三相荧光陶瓷为Ce:LuAG‑MgAl2O4‑MgO，Ce:LuAG作为陶瓷主体，MgAl2O4和MgO均为高导热相，在波长为455nm附近的蓝光LD芯片激发下，发射出550nm附近的高亮度宽带黄光，热导率为28Wm‑1K‑1～32Wm‑1K‑1，在150℃时发射强度仅损失1.4％～3.4％，在250℃时发射强度仅损失3.2％～5.8％，具有高热导率和高热稳定性，且制备方法简单，用时短，烧结温度低，可应用于大功率LED/LDs器件。
Three-phase fluorescent ceramic with high thermal conductivity and high thermal stability for laser illumination and preparation method of three-phase fluorescent ceramic
The invention discloses a three-phase fluorescent ceramic with high thermal conductivity and high thermal stability for laser illumination and a preparation method of the three-phase fluorescent ceramic, and the three-phase fluorescent ceramic is prepared by taking Ce: LuAG powder and MgO powder as ceramic raw material powder and adopting a spark plasma sintering method. The three-phase fluorescent ceramic takes Ce: LuAG-MgAl2O4-MgO and Ce: LuAG as a ceramic main body, both MgAl2O4 and MgO are high heat conduction phases, high-brightness broadband yellow light near 550 nm is emitted under excitation of a blue light LD chip near 455 nm in wavelength, the heat conductivity is 28 Wm <-1 > K <-1 >-32 Wm <-1 > K <-1 >, the emission intensity is only lost by 1.4%-3.4% at the temperature of 150 DEG C, the emission intensity is only lost by 3.2%-5.8% at the temperature of 250 DEG C, the three-phase fluorescent ceramic has high heat conductivity and high heat stability, and the three-phase fluorescent ceramic can be widely applied to the field of light emitting devices. And the preparation method is simple, short in time consumption and low in sintering temperature, and can be applied to high-power LED/LDs devices.
本发明公开了一种激光照明用高导热高热稳定性三相荧光陶瓷及其制备方法，以Ce:LuAG粉体、MgO粉体作为陶瓷原料粉体，采用放电等离子烧结法制备得到。该三相荧光陶瓷为Ce:LuAG‑MgAl2O4‑MgO，Ce:LuAG作为陶瓷主体，MgAl2O4和MgO均为高导热相，在波长为455nm附近的蓝光LD芯片激发下，发射出550nm附近的高亮度宽带黄光，热导率为28Wm‑1K‑1～32Wm‑1K‑1，在150℃时发射强度仅损失1.4％～3.4％，在250℃时发射强度仅损失3.2％～5.8％，具有高热导率和高热稳定性，且制备方法简单，用时短，烧结温度低，可应用于大功率LED/LDs器件。
Three-phase fluorescent ceramic with high thermal conductivity and high thermal stability for laser illumination and preparation method of three-phase fluorescent ceramic
一种激光照明用高导热高热稳定性三相荧光陶瓷及其制备方法
ZHANG LE (author) / ZHANG XIYUE (author) / LI YANBIN (author) / YANG CONGCONG (author) / HUANG GUOCAN (author) / WANG ZHONGYING (author) / SHAO CEN (author) / KANG JIAN (author) / ZHOU CHUNMING (author) / LI MING (author)
2022-10-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F21V
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF
,
Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen
/
F21Y
Index-Schema in Verbindung mit den Unterklassen F21K, F21L, F21S und F21V, betreffend die Form oder die Art der Lichtquellen oder die Farbe des emittierten Lichts
,
INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
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