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Eutectic fluorescent composite ceramic as well as preparation method and application thereof
The invention relates to the technical field of functional materials, in particular to eutectic fluorescent composite ceramic as well as a preparation method and application thereof. The eutectic fluorescent composite ceramic provided by the invention is Ce < 3 + > and Cr < 3 + > co-doped Al2O3-YAG eutectic fluorescent ceramic, and by taking a YAG phase in the Al2O3-YAG eutectic fluorescent ceramic as a reference, the doping amount of Cr < 3 + > is 0.2-0.6 wt.%. In the invention, the doping of Cr < 3 + > changes the crystal field around Ce < 3 + >, so that the 5d energy level of Ce < 3 + > ions is changed, and the color rendering index of the eutectic fluorescent ceramic can be improved. Results of embodiments show that the eutectic fluorescent composite ceramic provided by the invention has a color rendering index of 71.3-80, and the color rendering index is increased by 19.0% compared with that of single Ce < 3 + > doped eutectic fluorescent ceramic.
本发明涉及功能材料技术领域，具体涉及一种共晶荧光复合陶瓷及其制备方法和应用。本发明提供的共晶荧光复合陶瓷为Ce和Cr共掺杂的AlO‑YAG共晶荧光陶瓷，以AlO‑YAG共晶荧光陶瓷中YAG相为基准，所述Cr的掺杂量为0.2～0.6wt.％。在本发明中，由于Cr的掺杂改变了Ce周围的晶体场，导致Ce离子的5d能级发生变化，能够提高共晶荧光陶瓷的显色指数。实施例结果表明，本发明提供的共晶荧光复合陶瓷的显色指数为71.3～80，相比于单掺杂Ce的共晶荧光陶瓷，显色指数提高了19.0％。
Eutectic fluorescent composite ceramic as well as preparation method and application thereof
The invention relates to the technical field of functional materials, in particular to eutectic fluorescent composite ceramic as well as a preparation method and application thereof. The eutectic fluorescent composite ceramic provided by the invention is Ce < 3 + > and Cr < 3 + > co-doped Al2O3-YAG eutectic fluorescent ceramic, and by taking a YAG phase in the Al2O3-YAG eutectic fluorescent ceramic as a reference, the doping amount of Cr < 3 + > is 0.2-0.6 wt.%. In the invention, the doping of Cr < 3 + > changes the crystal field around Ce < 3 + >, so that the 5d energy level of Ce < 3 + > ions is changed, and the color rendering index of the eutectic fluorescent ceramic can be improved. Results of embodiments show that the eutectic fluorescent composite ceramic provided by the invention has a color rendering index of 71.3-80, and the color rendering index is increased by 19.0% compared with that of single Ce < 3 + > doped eutectic fluorescent ceramic.
本发明涉及功能材料技术领域，具体涉及一种共晶荧光复合陶瓷及其制备方法和应用。本发明提供的共晶荧光复合陶瓷为Ce和Cr共掺杂的AlO‑YAG共晶荧光陶瓷，以AlO‑YAG共晶荧光陶瓷中YAG相为基准，所述Cr的掺杂量为0.2～0.6wt.％。在本发明中，由于Cr的掺杂改变了Ce周围的晶体场，导致Ce离子的5d能级发生变化，能够提高共晶荧光陶瓷的显色指数。实施例结果表明，本发明提供的共晶荧光复合陶瓷的显色指数为71.3～80，相比于单掺杂Ce的共晶荧光陶瓷，显色指数提高了19.0％。
Eutectic fluorescent composite ceramic as well as preparation method and application thereof
一种共晶荧光复合陶瓷及其制备方法和应用
SU HAIJUN (author) / LIU YUAN (author) / SHEN ZHONGLIN (author) / ZHAO DI (author) / LIU HAIFANG (author) / ZHANG JUN (author) / GUO MIN (author) / LIU LIN (author) / FU HENGZHI (author)
2020-06-26
Patent
Electronic Resource
Chinese
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