PREPARATION AND CHARACTERIZATION OF LN(2)ZR(2)O(7) MICROSPHERES BY AN INORGANIC SOL-GEL ROUTE

被引：34

作者：

BHATTACHARYA, AK

HARTRIDGE, A

MALLICK, KK

WOODHEAD, JL

机构：

[1] Centre for Catalytic Systems and Materials Engineering, Department of Engineering, University of Warwick, Coventry

来源：

JOURNAL OF MATERIALS SCIENCE | 1994年 / 29卷 / 23期

关键词：

D O I：

10.1007/BF00354544

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Free-flowing Ln(2)Zr(2)O(7) microspheres (Ln = lanthanide) were prepared by an aqueous inorganic set-gel route without any intermediate phase formation. The gel spheres obtained at room temperature were shown by X-ray diffraction to be amorphous but calcination to 750 degrees C produced fully crystalline fluorite phases. On calcination to 850 degrees C, pyrochlore phases were formed with suitable lanthanides. The microspheres were characterized by X-ray diffraction and scanning electron microscopy with energy dispersive analysis of X-rays to give accurate determination of structure, composition and crystallite size.

引用

页码：6076 / 6078

页数：3

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