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Fabrication of Tb3Al5O12transparent ceramics using co-precipitated nanopowders: The influence of ammonium hydrogen carbonate to metal ions molar ratio
Dai, Jiawei1,2; Pan, Yubai3; Chen, Haohong1; Xie, Tengfei1; Kou, Huamin1; Li, Jiang1
2017
发表期刊Ceramics International
ISSN02728842
卷号43期号:16页码:14457-14463
摘要Terbium aluminum garnet (Tb3Al5O12, TAG) nanopowders were synthesized by the co-precipitation method using ammonium hydrogen carbonate (NH4HCO3, AHC) as the precipitant. The influence of ammonium hydrogen carbonate to metal ions molar ratio (AHC/M3+, R value) on the properties of TAG precursors and powders was investigated by FTIR, XRD and FESEM. It is found that the compositions of the precursors are nearly the same, and all the 1100°C-calcined powders exhibit a pure TAG phase. However, the R value has a significant influence on the morphology and agglomeration degree of TAG precursors and final powders. The precursor with R=3.6 shows a strong agglomeration, which is retained in the resultant powder. For the TAG precursors and powders with R=4.0, 4.4 and 4.8, they show better dispersity and homogeneity. Using the obtained powders as starting materials, TAG transparent ceramics were successfully fabricated by pre-sintering at 1700 °C for 20 h and then HIP post-treating at 1700 °C for 3 h. The ceramic sample with R=4.0 shows the best transparency, and its in-line transmittance exceeds 55% in the region of 500–1600 nm, reaching about 64% at 1450 nm. The microstructures and the magneto-optical properties of the TAG ceramics with different R values were also studied. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2017.07.225
EI入藏号20173104011638
EI主题词Powder metals
EI分类号531.1 Metallurgy - 741.1 Light/Optics - 761 Nanotechnology - 802.2 Chemical Reactions - 802.3 Chemical Operations - 804 Chemical Products Generally - 812.1 Ceramics
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25792
专题中国科学院上海硅酸盐研究所
作者单位1.Key Laboratory of Transparent Opto-functional Inorganic Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Department of Physics, Shanghai Normal University, Shanghai; 200234, China
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GB/T 7714
Dai, Jiawei,Pan, Yubai,Chen, Haohong,et al. Fabrication of Tb3Al5O12transparent ceramics using co-precipitated nanopowders: The influence of ammonium hydrogen carbonate to metal ions molar ratio[J]. Ceramics International,2017,43(16):14457-14463.
APA Dai, Jiawei,Pan, Yubai,Chen, Haohong,Xie, Tengfei,Kou, Huamin,&Li, Jiang.(2017).Fabrication of Tb3Al5O12transparent ceramics using co-precipitated nanopowders: The influence of ammonium hydrogen carbonate to metal ions molar ratio.Ceramics International,43(16),14457-14463.
MLA Dai, Jiawei,et al."Fabrication of Tb3Al5O12transparent ceramics using co-precipitated nanopowders: The influence of ammonium hydrogen carbonate to metal ions molar ratio".Ceramics International 43.16(2017):14457-14463.
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