Nanostructured yttrium aluminum garnet powders synthesized by co-precipitation method using tetraethylenepentamine

被引：0
|
作者：
李先学 [1 ,2 ]
王文菊 [3 ]
机构：
[1] Department of Environment & Life Science,Putian University
[2] Beijing Center for Crystal Research and Development,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences
[3] Financial Division,Putian University
来源：
Journal of Rare Earths | 2009年 / 27卷 / 06期
关键词：
yttrium aluminum garnet; powder technology; co-precipitation; ceramics; rare earths;
D O I：
暂无
中图分类号：
TB383.3 [];
学科分类号：
070205 ; 080501 ; 1406 ;
摘要：
Tetraethylenepentamine(C8H23N5,TEPA) has been used as a novel precipitant to synthesize yttrium aluminum garnet(Y3Al5O12,YAG) precursor from a mixed solution of aluminum and yttrium nitrates via a normal-strike co-precipitation method without controlling the pH value during precipitation process.The original precursor was analyzed by thermogravimetry/differential scanning calorimetry(TG/DSC).The evolution of phase composition and micro-structure of the as-synthesized YAG powders were characterized by X-ray diffraction(XRD),Fourier transform infrared(FT-IR) spectroscopy and transmission electron microscopy(TEM).Compositionally pure YAG nanostructured powders were directly obtained by calcination of the precursor at 900 ℃ without the formation of any intermediate phases.The average particle size determined from TEM micrograph for the powder obtained at 1000 ℃ was approximately 50 nm.
引用
收藏
页码：967 / 970
页数：4
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