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High-thermal-conductivity fluorescent ceramic and preparation method thereof, and application of high-thermal-conductivity fluorescent ceramic in LED or laser illumination
The invention belongs to the field of inorganic luminescent materials, and discloses a high-thermal-conductivity fluorescent ceramic and a preparation method thereof, and application of the high-thermal-conductivity fluorescent ceramic in LED or laser lighting equipment. The high-thermal-conductivity fluorescent ceramic is composed of an Al2O3 ceramic substrate, garnet-based fluorescent powder distributed in the Al2O3 ceramic substrate and a fluxing agent. The preparation method of the high-thermal-conductivity fluorescent ceramic comprises spark plasma sintering (SPS) or vacuum high-temperature sintering or hot isostatic pressing sintering. The thermal conductivity of the high-thermal-conductivity fluorescent ceramic is 10-30 W/m/K; an excitation source is blue light generated by a blue laser diode or a blue LED chip or ultraviolet light generated by an ultraviolet laser diode or an ultraviolet LED chip; an emission peak is broadband emission; an emission wavelength is adjustable (within the range of 480-750 nm); a color rendering index is 60-90; and photoelectric conversion efficiency is greater than 50 lm/W.
本发明属于无机发光材料领域，公开了一种高热导荧光陶瓷、制备方法及在LED或激光照明设备中应用，高热导荧光陶瓷为Al2O3陶瓷基底，分布在Al2O3陶瓷基底中的石榴石基荧光粉以及助熔剂组成。所述高热导荧光陶瓷的制备方法包括：放电等离子烧结(SPS)，或者是真空高温烧结，或者是热等静压烧结。本发明高热导荧光陶瓷的热导率在10‑30W·m‑1K‑1，激发源为蓝光激光二极管或蓝光LED芯片产生的蓝光，或者是紫外光激光二极管或紫外光LED芯片产生的紫外光，发射峰为宽带发射，发射波长可调(480–750nm)，显指为60‑90，光电转换效率：>50lm/W。
High-thermal-conductivity fluorescent ceramic and preparation method thereof, and application of high-thermal-conductivity fluorescent ceramic in LED or laser illumination
The invention belongs to the field of inorganic luminescent materials, and discloses a high-thermal-conductivity fluorescent ceramic and a preparation method thereof, and application of the high-thermal-conductivity fluorescent ceramic in LED or laser lighting equipment. The high-thermal-conductivity fluorescent ceramic is composed of an Al2O3 ceramic substrate, garnet-based fluorescent powder distributed in the Al2O3 ceramic substrate and a fluxing agent. The preparation method of the high-thermal-conductivity fluorescent ceramic comprises spark plasma sintering (SPS) or vacuum high-temperature sintering or hot isostatic pressing sintering. The thermal conductivity of the high-thermal-conductivity fluorescent ceramic is 10-30 W/m/K; an excitation source is blue light generated by a blue laser diode or a blue LED chip or ultraviolet light generated by an ultraviolet laser diode or an ultraviolet LED chip; an emission peak is broadband emission; an emission wavelength is adjustable (within the range of 480-750 nm); a color rendering index is 60-90; and photoelectric conversion efficiency is greater than 50 lm/W.
本发明属于无机发光材料领域，公开了一种高热导荧光陶瓷、制备方法及在LED或激光照明设备中应用，高热导荧光陶瓷为Al2O3陶瓷基底，分布在Al2O3陶瓷基底中的石榴石基荧光粉以及助熔剂组成。所述高热导荧光陶瓷的制备方法包括：放电等离子烧结(SPS)，或者是真空高温烧结，或者是热等静压烧结。本发明高热导荧光陶瓷的热导率在10‑30W·m‑1K‑1，激发源为蓝光激光二极管或蓝光LED芯片产生的蓝光，或者是紫外光激光二极管或紫外光LED芯片产生的紫外光，发射峰为宽带发射，发射波长可调(480–750nm)，显指为60‑90，光电转换效率：>50lm/W。
High-thermal-conductivity fluorescent ceramic and preparation method thereof, and application of high-thermal-conductivity fluorescent ceramic in LED or laser illumination
高热导荧光陶瓷、制备方法及在LED或激光照明中应用
ZHANG ZHIJUN (author) / YUAN RUI (author) / ZHAO JINGTAI (author)
2020-12-22
Patent
Electronic Resource
Chinese
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