Sintering of transparent Nd:YAG ceramics in oxygen atmosphere
来源期刊：JOURNAL OF RARE EARTHS2013年第2期
论文作者：黄毅华 江东亮 张景贤 林庆玲 黄政仁
文章页码：153 - 157
摘 要：Yttrium aluminum garnet （YAG） transparent ceramics were fabricated by sintering at oxygen atmosphere. Tetraethyl orthosilicate （TEOS） was added as the sintering additive to control the grain growth and densification. Pores were eliminated clearly at temperature lower than 1700oC, while grain size was around 3 μm. The in-line transmittance was 80% at 1064 nm when samples were sintered at 1710oC. The effect of TEOS was studied in oxygen atmosphere sintering for Nd:YAG transparent ceramics. At higher temperature like 1710oC, the grain growth mechanism was solute drag, while at 1630 and 1550 oC the grain growth was controlled by liquid phase sintering mechanism. And 0.5 wt.% TEOS was the best adding content for Nd:YAG sintered in oxygen atmosphere.
黄毅华，江东亮，张景贤，林庆玲，黄政仁
The State Key Laboratory of High Performance Ceramics and Superfine Microstructure,Shanghai Institute of Ceramics,Chinese Academy of Sciences
摘 要：Yttrium aluminum garnet （YAG） transparent ceramics were fabricated by sintering at oxygen atmosphere. Tetraethyl orthosilicate （TEOS） was added as the sintering additive to control the grain growth and densification. Pores were eliminated clearly at temperature lower than 1700oC, while grain size was around 3 μm. The in-line transmittance was 80% at 1064 nm when samples were sintered at 1710oC. The effect of TEOS was studied in oxygen atmosphere sintering for Nd:YAG transparent ceramics. At higher temperature like 1710oC, the grain growth mechanism was solute drag, while at 1630 and 1550 oC the grain growth was controlled by liquid phase sintering mechanism. And 0.5 wt.% TEOS was the best adding content for Nd:YAG sintered in oxygen atmosphere.
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