Preparation of Ln3-xEuxS4 (Ln=Ce,Pr,and Nd) ceramics by pressureless sintering

被引：0
作者：
YUAN HaiBin1
2 Institute of Materials Science and Engineering
机构：
来源：
Science Bulletin | 2009年 / 15期
关键词：
ternary rare earth sulfides; carbon disulfide; Eu substitution; ceramics; pressureless sintering;
D O I：
暂无
中图分类号：
TQ174.1 [基础理论];
学科分类号：
0805 ; 080502 ;
摘要：
The preparation of ternary rare earth sulfides of Ln3-xEuxS4 (Ln = Ce, Pr, and Nd) ceramics was investigated, and the effect of Eu substitution on Ln3-xEuxS4 ceramics was also studied. Ln3-xEuxS4 powders were synthesized by the sulfurization of their oxide powders using carbon disulfide gas. Ln3-xEuxS4 ceramics were sintered by pressure-less sintering method. All pressureless sintered Ln3-xEuxS4 ceramics crystallized in γ-phase. It was found that Eu substitution could improve the density of Ln3-xEuxS4 ceramics. Furthermore, Eu substitution might narrow the optical band gaps of Ln3-xEuxS4 ceramics.
引用
收藏
页码：2694 / 2697
页数：4
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