离子浓度和分散剂对合成Nd:YAG粉体晶相的影响

doi:10.11949/j.issn.0438-1157.20151835

化工学报 ›› 2016, Vol. 67 ›› Issue (5): 2138-2143.DOI: 10.11949/j.issn.0438-1157.20151835

• 材料化学工程与纳米技术 • 上一篇下一篇

离子浓度和分散剂对合成Nd:YAG粉体晶相的影响

吉祥波, 敬畏, 祝明水

中国工程物理研究院化工材料研究所, 四川绵阳 621900

收稿日期:2015-12-04 修回日期:2016-01-28 出版日期:2016-05-05 发布日期:2016-05-05
通讯作者: 祝明水
基金资助:
中国工程物理研究院高能激光重点实验室重点基金项目(HEL2014-4)。

Effects of metallic cation concentration and dispersant on crystal phase of Nd:YAG powders

JI Xiangbo, JING Wei, ZHU Mingshui

Institute of Chemical Materials, Chinese Academy of Engineering Physics, Mianyang 621900, Sichuan, China

Received:2015-12-04 Revised:2016-01-28 Online:2016-05-05 Published:2016-05-05
Supported by:
supported by the Key Laboratory of Science and Technology on High Energy Laser, CAEP (HEL2014-4).

摘要/Abstract

摘要：

以碳酸氢铵为沉淀剂,共沉淀合成了Nd:YAG陶瓷粉体。分析了合成过程中盐溶液离子浓度和分散剂含量对粉体后期晶相转变的影响。研究结果表明盐溶液浓度在0.16 mol·L^-1和0.32 mol·L^-1时,煅烧过程中粉体出现Y₂O₃、YAM等过渡晶相,这些过渡相需要在更高的温度才能完全转化为纯YAG晶相。当盐溶液浓度降低到0.08 mol·L^-1, pH调节到8.0时,各组分离子和掺杂离子达到分子水平的均匀混合,合成粉体煅烧过程中直接转化为YAG晶相。添加的分散剂对Al₂O₃和Y₂O₃扩散反应生成YAG晶相有一定的阻碍作用。采用纯相的Nd:YAG粉体制备的多晶透明陶瓷获得了1.6W的激光输出。

关键词: Nd:YAG, 透明陶瓷, 合成, 溶液, 纳米粒子

Abstract:

The effects of metallic cation concentration and dispersant on the crystal phase of Nd:YAG powders were studied. The powders were prepared by co-precipitation with ammonium hydration carbonate as precipitator. The crystal phase of Y₂O₃, YAM was observed at 0.16 mol·L^-1 and 0.32 mol·L^-1 of the metallic cation concentration. The solution with pH 8.0 and 0.08 mol·L^-1 metallic cation concentration was suitable for the preparation of the Nd:YAG nanopowders. A small amount of sulfate ions dispersant influenced the dispersion and the phase transformation of the precursor during the calcining process. Nd:YAG transparent ceramic with high in-line transmittance was obtained by sintering the green body prepared by co-precipitation powder. 1.6 W laser output at 1064 nm was obtained with a 6 W pump power.

Key words: Nd:YAG, transparent ceramic, synthesis, solution, nanoparticles

中图分类号:

TG321

吉祥波, 敬畏, 祝明水. 离子浓度和分散剂对合成Nd:YAG粉体晶相的影响[J]. 化工学报, 2016, 67(5): 2138-2143.

JI Xiangbo, JING Wei, ZHU Mingshui. Effects of metallic cation concentration and dispersant on crystal phase of Nd:YAG powders[J]. CIESC Journal, 2016, 67(5): 2138-2143.

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离子浓度和分散剂对合成Nd:YAG粉体晶相的影响

Effects of metallic cation concentration and dispersant on crystal phase of Nd:YAG powders

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