超临界流体干燥技术制备Nd:YAG纳米粉体及透明陶瓷

谢慧财;杨儒*;秦杰;李敏

北京化工大学学报(自然科学版) ›› 2013, Vol. 40 ›› Issue (6) : 56-61.

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北京化工大学学报(自然科学版) ›› 2013, Vol. 40 ›› Issue (6) : 56-61.
材料科学与工程

超临界流体干燥技术制备Nd:YAG纳米粉体及透明陶瓷

  • 谢慧财;杨儒*;秦杰;李敏

作者信息 +

Fabrication of neodymiumdoped yttrium aluminum garnet (Nd:YAG ) nanopowders and transparent ceramics by a supercritical fluid drying technique

  • XIE HuiCai;YANG Ru;QIN Jie;LI Min
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摘要

Y2O3OAl(NO3)3·9H2ONd(NO3)3·6H2O为原料,采用尿素均匀沉淀法制备不同Nd掺杂量的YAG前驱体沉淀,经CO2 超临界流体干燥得Nd:YAG前驱体,煅烧后得到Nd:YAG粉体;将粉体干压成型为素坯,经冷等静压后真空烧结获得性能良好的Nd:YAG透明陶瓷。用FT-IR、XRD、SEM等测试手段对Nd:YAG前驱体及粉体进行分析,并通过紫外-可见-近红外分光光度计、SEM测定表征了陶瓷样品的直线透过率及表面和断口形貌。结果表明,1300℃煅烧的Nd:YAG粉体均为纯YAG相,颗粒呈椭球形,分散性良好,尺寸分布均匀;粉体成型后在1780~1800℃真空烧结得到透明陶瓷,Nd摩尔分数为1%的YAG陶瓷样品晶粒尺寸分布为5~10μm,抛光后1064nm波长处直线透过率达80%。

Abstract

Neodymium doped yttrium aluminum garnet (Nd:YAG) precursor precipitates doped with different amounts of Nd have been synthesized via the urea homogeneous precipitation method using Y2O3OAl(NO3)3·9H2O and Nd(NO3)3·6H2O as raw materials. The fresh wet precipitates were dried by supercritical CO2 and then calcined at 1300℃ for 3h, affording Nd:YAG nanopowders. After uniaxially pressing into pellets followed by isostatic cold pressing, the resulting biscuits were sintered between 1780-1800℃ under vacuum giving transparent ceramics with excellent properties. The calcined powders were characterized by infrared (IR) spectroscopy, X-ray diffraction (XRD) and scanning electron microscopy. The transmittance of the transparent ceramics was measured using an ultravioletvisiblenear infrared spectrophotometer, and their surface topography was observed using a scanning electron microscope (SEM). The results showed that the precursor was directly converted to pure YAG after calcination at 1300℃ and that the particles were ellipsoidal with excellent dispersion and uniform size distribution. Transparent ceramics could obtained by sintering of the powders between 1780-1800℃ with 1% molar fraction of Nd, and the grain size distribution of the ceramic samples was 5-10μm, and the transmittance of double-polished samples with a thickness of 4mm was above 80% at a wavelength of 1064nm.

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谢慧财;杨儒*;秦杰;李敏

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超临界流体干燥技术制备Nd:YAG纳米粉体及透明陶瓷[J]. 北京化工大学学报(自然科学版), 2013, 40(6): 56-61
XIE HuiCai;YANG Ru;QIN Jie;LI Min. Fabrication of neodymiumdoped yttrium aluminum garnet (Nd:YAG ) nanopowders and transparent ceramics by a supercritical fluid drying technique[J]. Journal of Beijing University of Chemical Technology, 2013, 40(6): 56-61

参考文献

[1]Lu J R, Ueda K, Yagi H, et al. Neodymium doped yttrium aluminum garnet (Y3Al5O12) nanocrystalline ceramics—a new generation of solid state laser and optical materials[J]. Journal of Alloys and Compounds, 2002, 341: 22-225. 
[2]Ikesue A, Aung Y L, Yoda T, et al. Fabrication and laser performance of polycrystal and single crystal Nd: YAG by advanced ceramic processing[J]. Optical Materials, 2007, 29: 1289-1294. 
[3]刘文斌, 寇华敏, 潘裕柏, 等. 高透光率Nd: YAG透明陶瓷的制备与性能研究[J]. 无机材料学报, 2008, 23(5): 1037-1040. 
Liu W B, Kou H M, Pan Y B, et al. Preparation and characteristic of properties of high transmission Nd: YAG transparent ceramic[J]. Journal of Inorganic Materials, 2008, 23(5): 1037-1040. (in Chinese)
[4]Lee S H, Kochawattana S, Messing G L. Solid-state reactive sintering of transparent polycrystalline Nd: YAG ceramics[J]. Journal of the American Ceramic Society, 2006, 89(6): 1945-1950. 
[5]Leleckaite A, Kareiva A, Bettentrup H. Sol-gel preparation and characterization of codoped yttrium aluminium garnet powders[J]. Zeitschrift fur Anorganische und Allgemeine Chemie, 2005, 631: 2987-2993. 
[6]Jia N T, Zhang X D, He W. Property of YAG:Ce phosphors powder prepared by mixed solvothermal method[J]. Journal of Alloys and Compounds, 2011, 509: 1848-1853. 
[7]Liu W B, Zhang W X, Li J, et al. Synthesis of Nd: YAG powders leading to transparent ceramics: The effect of MgO dopant[J]. Journal of the European Ceramic Society, 2011, 31: 653-657. 
[8]Wang S F, Rao K K, Wu Y C, et al. Synthesis and characterization of Ce3+:YAG phosphors by heterogeneous precipitation using different alumina sources[J]. International Journal of Applied Ceramic Technology, 2009, 6(4): 47-478. 
[9]Stengl V, Bakardjieva S, Subrt J, et al. Titania aerogel prepared by low temperature supercritical drying[J]. Microporous and Mesoporous Materials, 2006, 91: 1-6. 
[10]杨儒, 张广延, 李敏, 等. 超临界干燥制备纳米SiO2粉体及其性质[J]. 硅酸盐学报, 2005, 33(3): 281-286. 
Yang R, Zhang G Y, Li M, et al. Preparation and properties of nano-SiO2 powder by supercritical drying[J]. Journal of the Chinese Ceramic Society, 2005, 33(3): 281-286. (in Chinese)
[11]Lu W, Quilitz M, Schmidt H. Nanoscaled BaTiO3 powders with a large surface area synthesized by precipitation from aqueous solutions: Preparation, characterization and sintering[J]. Journal of the European Ceramic Society, 2007, 27: 3149-3159. 
[12]苏静, 张庆礼, 谷长江, 等. 共沉淀法YAG、Nd:YAG纳米粉体的制备、结构与光谱性能研究[J]. 功能材料, 2005, 36(5): 717-719. 
Su J, Zhang Q L, Gu C J, et al. Studies on the preparation, structure and spectral character of YAG, Nd: YAG nanopowder by co-precipitation method[J]. Journal of Functional Materials, 2005, 36(5): 717-719. (in Chinese)
[13]王介强, 陶文宏, 高新睿, 等. 微波均相合成YAG纳米粉体及其可烧结性研究[J]. 无机材料学报, 2005, 20(5): 1037-1042. 
Wang J Q, Tao W H, Gao X R, et al. Synthesis and sinterability of YAG nanopowders by microwave homogeneous precipitation[J]. Journal of Inorganic Materials, 2005, 20(5): 1037-1042. (in Chinese)
[14]Yanagida T, Kamada K, Fujimoto Y, et al. Scintillation properties of transparent ceramic and single crystalline Nd: YAG scintillators[J]. Nuclear Instruments and Methods in Physics Research A, 2011, 631: 54-57. 
[15]Esposito L, Piancastelli A, Costa A L, et al. Experimental features affecting the transparency of YAG ceramics[J]. Optical Materials, 2011, 33: 713-721.
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