Effects of aging on the characteristics of Nd:YAG nano-powders
Effects of aging on the characteristics of Nd:YAG nano-powders
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DOI：
10.1016/j.jallcom.2010.04.144
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发表时间：
2010-07
影响因子：
6.2
通讯作者：
Xiaoli Zhang;Duo Liu;Y. Sang;Hong Liu;Ji-yang Wang
中科院分区：
文献类型：
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作者：
Xiaoli Zhang;Duo Liu;Y. Sang;Hong Liu;Ji-yang Wang
采用微波辅助沉淀法（MAP），在1373K下煅烧2h，制备了均匀、细小的Nd：YAG（Nd：Y3Al5O12）纳米粉体。研究发现，陈化条件对Nd：YAG纳米粉体的物相、形貌和烧结性能有显著影响。结果表明，为了获得均匀、纯相的Nd：YAG纳米粉体，应在密闭环境中进行时效处理。在密闭容器中陈化6 d的前驱体所得Nd：YAG纳米粉体的烧结性较好，晶粒较细。将Nd：YAG纳米粉体在密闭容器中陈化6 d后，在2003K下真空烧结10 h，得到透光率为75%的透明Nd：YAG陶瓷颗粒。
We report here the synthesis of homogeneous and fine Nd:YAG (Nd:Y3Al5O12) nano-powders via the microwave-assisted precipitation (MAP) method followed by calcination at 1373K for 2h. We find that the phase, morphology, and sinterability of the Nd:YAG nano-powders are affected remarkably by the conditions of aging. It is confirmed that aging should be performed in enclosed environment in order to obtain uniform and pure phase Nd:YAG nano-powders. The Nd:YAG nano-powders obtained from the precursors aged in enclosed vessel for 6 days showed better sinterability and finer grains than those aged in air. Transparent Nd:YAG ceramic pellet was obtained by vacuum sintering at 2003K for 10h (a transmittance of 75%) from the Nd:YAG nano-powders aged in enclosed vessel for 6 days.