Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic for laser illumination and preparation method of high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic
The invention discloses a high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic for laser illumination and a preparation method of the high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic. The composite fluorescent ceramic comprises an MgO ceramic substrate and LuAG: Ce fluorescent powder distributed in the MgO ceramic substrate, the content of the fluorescent powder in the composite fluorescent ceramic is 5wt%-20wt%, and the composite fluorescent ceramic is prepared by sintering through a non-reactive sintering process. The composite ceramic prepared by the invention realizes high-brightness white light emission under the excitation of a blue light LD chip with the wavelength of 455nm, and can bear the excitation power density of 45W/mm < 2 >-55W/mm < 2 > and the luminous efficiency of 200-230lm/W. The thermal conductivity of the material is 37-46 Wm <-1 > k <-1 >, the density of the material is 99.3%-99.7%, the application value of the device is greatly improved, the service life of the device is greatly prolonged, and the preparation method is simple, environmentally friendly and capable of being used for industrial production of LD devices.
本发明公开了一种激光照明用高热导MgO/LuAG:Ce复合荧光陶瓷及其制备方法。该复合荧光陶瓷包括MgO陶瓷基底和分布在MgO陶瓷基底中的LuAG:Ce荧光粉，荧光粉在复合荧光陶瓷中的含量为5wt％～20wt％，采用非反应烧结工艺烧结制得。本发明制备的复合陶瓷的在波长为455nm蓝光LD芯片激发下，实现高亮白光发射，可承受激发功率密度为45W/mm2～55W/mm2，发光效率200～230lm/W。其热导率为37～46Wm‑1k‑1，其致密度为99.3％～99.7％，极大地提升了器件的应用价值和使用寿命，并且制备方法简单，绿色环保，可用于LD器件工业化生产。
High-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic for laser illumination and preparation method of high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic
The invention discloses a high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic for laser illumination and a preparation method of the high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic. The composite fluorescent ceramic comprises an MgO ceramic substrate and LuAG: Ce fluorescent powder distributed in the MgO ceramic substrate, the content of the fluorescent powder in the composite fluorescent ceramic is 5wt%-20wt%, and the composite fluorescent ceramic is prepared by sintering through a non-reactive sintering process. The composite ceramic prepared by the invention realizes high-brightness white light emission under the excitation of a blue light LD chip with the wavelength of 455nm, and can bear the excitation power density of 45W/mm < 2 >-55W/mm < 2 > and the luminous efficiency of 200-230lm/W. The thermal conductivity of the material is 37-46 Wm <-1 > k <-1 >, the density of the material is 99.3%-99.7%, the application value of the device is greatly improved, the service life of the device is greatly prolonged, and the preparation method is simple, environmentally friendly and capable of being used for industrial production of LD devices.
本发明公开了一种激光照明用高热导MgO/LuAG:Ce复合荧光陶瓷及其制备方法。该复合荧光陶瓷包括MgO陶瓷基底和分布在MgO陶瓷基底中的LuAG:Ce荧光粉，荧光粉在复合荧光陶瓷中的含量为5wt％～20wt％，采用非反应烧结工艺烧结制得。本发明制备的复合陶瓷的在波长为455nm蓝光LD芯片激发下，实现高亮白光发射，可承受激发功率密度为45W/mm2～55W/mm2，发光效率200～230lm/W。其热导率为37～46Wm‑1k‑1，其致密度为99.3％～99.7％，极大地提升了器件的应用价值和使用寿命，并且制备方法简单，绿色环保，可用于LD器件工业化生产。
High-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic for laser illumination and preparation method of high-thermal-conductivity MgO/LuAG: Ce composite fluorescent ceramic
一种激光照明用高热导MgO/LuAG:Ce复合荧光陶瓷及其制备方法
ZHANG LE (Autor:in) / WANG JINHUA (Autor:in) / SANG PENGFEI (Autor:in) / LIU XUANCHU (Autor:in) / LIU ZITONG (Autor:in) / SHI CHAOFAN (Autor:in) / KANG JIAN (Autor:in) / ZHOU CHUNMING (Autor:in) / ZHOU TIANYUAN (Autor:in) / CHEN HAO (Autor:in)
29.12.2023
Patent
Elektronische Ressource
Chinesisch
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