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Oxynitride fluorescent ceramic material with long-waveband emission and high color rendering index and preparation method of oxynitride fluorescent ceramic material
The invention discloses nitrogen oxide fluorescent ceramic with long-waveband emission and high color rendering index and a preparation method thereof, the chemical general formula of the fluorescentceramic is (CexA1-x)3M5-12ySi12y(O1-yNy)12, and A is one or a combination of more than two of Y, Lu, Gd and Tb; wherein M is one or a combination of two of Al, Sc and Ga, x is larger than 0 and smaller than or equal to 0.01, and y is larger than 0 and smaller than or equal to 0.1; and the method is as follows: mixing and ball-milling a weighed initial raw material and absolute ethyl alcohol according to a certain proportion, and drying and sieving mixed slurry obtained by ball-milling; and molding and calcining the sieved powder to obtain a ceramic biscuit, sintering the ceramic biscuit, cooling to room temperature, and carrying out double-sided polishing processing to obtain the nitrogen oxide fluorescent ceramic. According to the invention, Si < 4 + >-N <3-> bond with stronger covalenceis introduced for the first time to replace Al < 3 + >-O < 2-> bond of the original Ce: YAG ceramic material, the spectral large-range red shift under the condition of less additive introduction amount is realized, the preparation process of the ceramic is simple, and the cost is low.
本发明公开了一种具有长波段发射、高显指的氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为：(CeA)MSi(ON)，其中，A为Y、Lu、Gd、Tb中的一种或两种以上的组合；M为Al、Sc、Ga中的一种或者两种的组合，0
Oxynitride fluorescent ceramic material with long-waveband emission and high color rendering index and preparation method of oxynitride fluorescent ceramic material
The invention discloses nitrogen oxide fluorescent ceramic with long-waveband emission and high color rendering index and a preparation method thereof, the chemical general formula of the fluorescentceramic is (CexA1-x)3M5-12ySi12y(O1-yNy)12, and A is one or a combination of more than two of Y, Lu, Gd and Tb; wherein M is one or a combination of two of Al, Sc and Ga, x is larger than 0 and smaller than or equal to 0.01, and y is larger than 0 and smaller than or equal to 0.1; and the method is as follows: mixing and ball-milling a weighed initial raw material and absolute ethyl alcohol according to a certain proportion, and drying and sieving mixed slurry obtained by ball-milling; and molding and calcining the sieved powder to obtain a ceramic biscuit, sintering the ceramic biscuit, cooling to room temperature, and carrying out double-sided polishing processing to obtain the nitrogen oxide fluorescent ceramic. According to the invention, Si < 4 + >-N <3-> bond with stronger covalenceis introduced for the first time to replace Al < 3 + >-O < 2-> bond of the original Ce: YAG ceramic material, the spectral large-range red shift under the condition of less additive introduction amount is realized, the preparation process of the ceramic is simple, and the cost is low.
本发明公开了一种具有长波段发射、高显指的氮氧化物荧光陶瓷及其制备方法，该荧光陶瓷的化学通式为：(CeA)MSi(ON)，其中，A为Y、Lu、Gd、Tb中的一种或两种以上的组合；M为Al、Sc、Ga中的一种或者两种的组合，0
Oxynitride fluorescent ceramic material with long-waveband emission and high color rendering index and preparation method of oxynitride fluorescent ceramic material
一种具有长波段发射、高显指的氧氮化物荧光陶瓷材料及其制备方法
ZHANG LE (author) / SUN BINGHENG (author) / SHAO CEN (author) / KANG JIAN (author) / CHEN DONGSHUN (author) / HUANG GUOCAN (author) / LI MING (author) / CHEN HAO (author)
2020-05-08
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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