Preparation and infrared transmittance of NaLaS2 ceramics

被引：7
|
作者：
Li, Huanyong [1 ]
Ding, Wenzhong [1 ]
Gu, Zhi [1 ]
Li, Heqing [1 ]
Zhao, Jingli [1 ]
Fu, Li [1 ]
机构：
[1] Northwestern Polytech Univ, Sch Mat & Engn, State Key Lab Solidificat Proc, Xian 710072, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 156卷
关键词：
Ceramics; Optical materials and properties; Sintering; Structural; LANTHANUM SULFIDE;
D O I：
10.1016/j.matlet.2015.03.115
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Infrared-transmitting NaLaS2 ceramics with various Na/La molar ratios are prepared by hot-press sintering. The Na/La=1.1 pellet shows the best performances with the maximum transmittance of 45.4% at 9 mu m and the low absorption of sulfate at 8-14 mu m due to its uniform grain microstructures containing single NaLaS2 phase. Contrasting investigation indicates NaLaS2 ceramics possesses a greater antioxidation capacity and better long-wave infrared performance than gamma La2S3 ceramics due to sodium content. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：62 / 64
页数：3
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