Title of article
Fabrication of YAG transparent ceramics by two-step sintering
Author/Authors
Zhi-hui Chen، نويسنده , , Jiang-tao Li، نويسنده , , Jiujun Xu، نويسنده , , Zhang-gui Hu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
4
From page
1709
To page
1712
Abstract
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 °C followed by holding at 1550 °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%.
Keywords
A. Grain growth , A. Sintering , B. Grain size , B. Grain boundaries
Journal title
Ceramics International
Serial Year
2008
Journal title
Ceramics International
Record number
1270752
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