Nanostructured yttrium aluminum garnet powders synthesized by co-precipitation method using tetraethylenepentamine
来源期刊：Journal of Rare Earths2009年第6期
论文作者：李先学 王文菊
文章页码：967 - 970
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.
李先学1,2，王文菊3
1. Department of Environment & Life Science,Putian University2. Beijing Center for Crystal Research and Development,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences3. Financial Division,Putian University
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.
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