材料期刊网

高温固相法制备了BaMgAl10O17:Eu2+(BAM)细颗粒稀土荧光粉,采用X射线衍射、粒度分布分析、光谱分析等方法,研究了BAM的晶体结构,粒度分布,热稳定性,相对亮度,光效等性能,结果表明,制备的样品为BaMgAl10O17:Eu2+(BAM),BAM细颗粒稀土荧光粉的粒度大约2 μm,X50测试误差为±0.02 μm;600 ℃,0.5 h,热稳定性为7.0%~8.5%;相对亮度为101%~102%;100 h的光衰<5%,基本满足细颗粒灯用稀土荧光粉的要求.

The fine rare-earth phosphor BaMgAl10O17:Eu2+ (BAM) was synthesized by high temperature solid-state reaction method.The crystal structure, particle size distribution, thermal stability, relative brightness and luminescent efficiency were studied by using X-ray diffraction, particle size distribution analysis, spectral analysis measurement methods and so on.Results indicate that the sample obtained is BaMgAl1017:Eu2+ (BAM).The particle size of the BAM fine rare earth phosphor is approximately 2 μm when the measurement deviation of X50 is ±0.02 μm.The thermal stability is 7.0%-8.5%, when testing at 600 ℃, 0.5 h and relative luminance is 101%-102%.100 hours of luminescence degradation is less than 5%, basically meeting the requirements of fine rare earth phosphor for fluorescent lamps.