Effect of annealing on the optical properties of Nd:YAG transparent ceramics
Effect of annealing on the optical properties of Nd:YAG transparent ceramics
复制标题
退火对Nd:YAG透明陶瓷光学性能的影响
DOI：
10.1016/j.optmat.2011.10.001
复制
发表时间：
2012-02
影响因子：
3.9
通讯作者：
Qi, Jianqi
中科院分区：
文献类型：
--
作者：
Zhang, Wei;Lu, Tiecheng;Wei, Nian;Ma, Benyuan;Li, Feng;Lu, Zhongwen;Qi, Jianqi
采用改进的共沉淀法合成Nd：YAG纳米粉体，在1750°C下真空烧结20 h制备了Nd：YAG透明陶瓷。随后在1250-1500°C的空气或真空中对Nd：YAG陶瓷样品进行退火或再退火20 h。采用X射线衍射、紫外光谱、电感耦合等离子体原子发射光谱、电子顺磁共振谱和扫描电镜对Nd：YAG陶瓷样品进行了分析。结果表明，后退火处理可以改善Nd：YAG透明陶瓷的光学性能和显微结构。通过空气退火，样品的在线透射率增加，主要是由于样品中的氧空位浓度降低。在1450°C空气中退火20 h是制备Nd：YAG透明陶瓷的最佳工艺。空气退火后样品的紫外吸收边红移是由于Fe 3+电荷转移带的吸收。
The Nd:YAG transparent ceramics were fabricated by vacuum sintering at 1750°C for 20h, where the raw nanopowders were synthesized by a modified co-precipitation method. Subsequently the Nd:YAG ceramic specimens were annealed or even re-annealed in air or vacuum at 1250–1500°C for 20h. The Nd:YAG ceramic specimens were investigated by X-ray diffraction, ultraviolet spectroscopy, inductively coupled plasma atomic emission spectroscopy, electron paramagnetic resonance spectroscopy and scanning electron microscopy. The results showed that post-annealing could improve the optical properties and microstructure of Nd:YAG transparent ceramics. By air annealing, the in-line transmittances of the specimens increased, mainly due to the decrease of oxygen vacancies concentration in specimens. The air annealing at 1450°C for 20h was optimum for preparation of Nd:YAG transparent ceramics. Furthermore, the red shift of UV absorption edge after air annealing could be attributed to the absorption by Fe3+charge transfer bands.
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影响因子：
3.9
作者：
H. Yagi;T. Yanagitani;K. Takaichi;K. Ueda;A. Kaminskii
通讯作者：
H. Yagi;T. Yanagitani;K. Takaichi;K. Ueda;A. Kaminskii
DOI：
10.1103/physrevb.41.791
发表时间：
1990
期刊：
Physical review. B, Condensed matter
影响因子：
--
作者：
Rotman
通讯作者：
Rotman
溶胶-凝胶法合成钇铝石榴石纳米粉体影响因素研究
影响因子：
3.2
作者：
Lin Yang, Tiecheng Lu, Hui Xu, Wei Zhang
通讯作者：
Lin Yang, Tiecheng Lu, Hui Xu, Wei Zhang
DOI：
10.1103/physrevb.38.8555
发表时间：
1988-11
期刊：
Physical review. B, Condensed matter
影响因子：
--
作者：
C. Y. Chen;G. J. Pogatshnik;Y. Chen;M. Kokta
通讯作者：
C. Y. Chen;G. J. Pogatshnik;Y. Chen;M. Kokta
影响因子：
3.9
作者：
J. B. Blum;H. Tuller;R. Coble
通讯作者：
J. B. Blum;H. Tuller;R. Coble