Nanostructured Nd:YAG powders via gel combustion:: The influence of citrate-to-nitrate ratio

被引：76

作者：

Li, Jiang ^{[1
,2
]}

Pan, Yubai ^{[1
]}

Qiu, Fagui ^{[1
,2
]}

Wu, Yusong ^{[1
,2
]}

Guo, Jingkun ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Perfomance Ceram & Superfine M, Shanghai 200050, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

CERAMICS INTERNATIONAL | 2008年 / 34卷 / 01期

关键词：

nanostructured Nd : YAG; gel combustion synthesis; citrate-to-nitrate ratio;

D O I：

10.1016/j.ceramint.2006.09.002

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanostructured neodymium doped yttriurn aluminum garnet (Nd:YAG) powders were synthesized at low temperature by a gel combustion method with citric acid as fuel and nitrate as oxidizer. The method involves exothermic decomposition of an aqueous citrate-nitrate gel. The decomposition is based on a thermally induced anionic redox reaction. A variety of 1.0 at% Nd:YAG powders with different agglomerate structures were obtained by altering the citrate-to-nitrate ratio gamma. The gel with gamma = 0.277 yielded nanocrystalline Nd:YAG at 800 degrees C without the formation of any intermediate phase. For other gels nanostructured Nd:YAG powders were obtained at 850 degrees C. The gel with gamma = 0.1 yielded nanostructured Nd:YAG powder with an average particle size of similar to 40 nm. The stoichiometric citrate-to-nitrate ratio (gamma = 0.277) gave the lowest amount of agglomeration. The decomposition of the get was investigated by TG-DSC and FTIR. The produced ashes and calcined powders were characterized by XRD, BET and FETEM analysis. (C) 2006 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

引用

页码：141 / 149

页数：9

共 43 条

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