Effects of particle size and color on photocuring performance of Si3N4 ceramic slurry by stereolithography

被引：61
作者：
Liu, Yao [1 ,3 ]
Zhan, Lina [1 ]
Wen, Lei [1 ]
Cheng, Lin [1 ]
He, Yu [1 ]
Xu, Biao [1 ]
Wu, Qiumei [2 ,3 ]
Liu, Shaojun [2 ,3 ]
机构：
[1] Pingxiang Univ, Coll Mech & Elect Engn, Pingxiang 337000, Peoples R China
[2] Cent South Univ, Shenzhen Res Inst, Shenzhen 510085, Peoples R China
[3] Cent South Univ, State Key Lab Powder Met, Changsha 410083, Peoples R China
来源：
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2021年 / 41卷 / 04期
关键词：
Si3N4; slurry; Stereolithography; Particle color and size; Rheological property; Curing ability; SILICON-NITRIDE; SUSPENSIONS; FABRICATION; OXIDATION;
D O I：
10.1016/j.jeurceramsoc.2020.11.032
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Due to high absorbance of UV light and low solid loading, the stereolithography-based additive manufacturing of gray-colored and dense Si3N4 ceramic is of significant difficulty and challenge. The effects of geometric properties of ceramic powders on the curing performance were investigated by studying the absorption difference of the Si3N4 ceramic particles with different colors and particle sizes and ultraviolet light. The results show that the transmission of ultraviolet light and curing performance of the darker Si3N4 ceramic slurry are much poor. Under the same particle size, the Si3N4 ceramic slurry using lighter particles presents the smaller scattering coefficient. The scattering coefficient (similar to 202) of the gray powder with similar to 0.8 mu m average particle size is the smallest. Under the same color, the larger the particle size, the smaller the scattering coefficient. The smallest scattering coefficient of the white powder with similar to 2.0 mu m average particle size is similar to 110.
引用
收藏
页码：2386 / 2394
页数：9
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