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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Synthesis of ultrafine gadolinium oxide powder by mechanochemical processing
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Synthesis of ultrafine gadolinium oxide powder by mechanochemical processing

机译：机电化学合成超细氧化powder粉末。

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摘要

The synthesis of ultrafine Gd2O3 powder by mechanochemical reaction and subsequent heat treatment via the reaction 2GdCl(3)+ 3CaO-->Gd2O3+3CaCl(2) was studied using X-ray diffraction, transmission electron microscopy and differential thermal analysis. Dried GdCl3 and CaO powders were mechanically milled and subsequently annealed at various temperatures. During milling, GdOCl nanoparticles of similar to 16 nm in size were formed by a solid-state displacement reaction. Heat treatment of the as-milled powder at 700 degrees C resulted in the formation of monoclinic Gd2O3 crystallites of similar to 100 nm having a thin platelet morphology. (C) 1998 Published by Elsevier Science S.A. All rights reserved. [References: 34]
机译：通过X射线衍射，透射电子显微镜和差热分析研究了通过机械化学反应和随后通过2GdCl（3）+ 3CaO-> Gd2O3 + 3CaCl（2）反应进行的热处理合成Gd2O3超细粉末的方法。机械干燥GdCl3和CaO粉末，然后在各种温度下进行退火。在研磨过程中，通过固态置换反应形成大小相似于16nm的GdOCl纳米颗粒。研磨后的粉末在700摄氏度下进行热处理导致形成了类似于100 nm的单斜Gd2O3微晶，具有薄的血小板形态。 （C）1998由Elsevier Science S.A.出版，保留所有权利。 [参考：34]

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