Fabrication of YAG transparent ceramics by two-step sintering

被引：34

作者：

Chen, Zhi-hui ^{[1
,2
,4
]}

Li, Jiang-tao ^{[1
]}

Xu, Jiu-jun ^{[3
]}

Hu, Zhang-gui ^{[1
]}

机构：

[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

[3] Dalian Maritime Univ, Dalian 116026, Peoples R China

[4] Jiangsu Polytech Univ, Jiangsu 213164, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 07期

关键词：

grain growth; sintering; grain boundaries; grain size;

D O I：

10.1016/j.ceramint.2007.05.015

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：

Yttrium, aluminum garnet (YAG) nanopowders with mean particle size of about 50 nm synthesized by a modified co-precipitation method were used to sinter bulk YAG ceramic by two-step sintering method. Full densification was achieved by heating the sample up to 1800 degrees C followed by holding at 1550 degrees C for 10 h. Transparent YAG ceramics were obtained by suppressing grain-boundary migration while promoting grain-boundary diffusion during the two-step sintering process. The microstructure of the YAG ceramic is homogeneous without abnormal grain growth and the transmittance of the sintered sample is 43%. (C) 2007 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：1709 / 1712

页数：4

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