Preparation of Al_(2-x)Y_xW_3O_(12) powders by citrate sol-gel process

作     者：张海军 张青 贾全利 叶国田 

作者机构：High Temperature Ceramics InstituteZhengzhou University 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2008年第18卷第5期

页      面：1112-1116页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Project(0512002400) supported by the Fund for Distinguished Young Scholars of Henan Province China 

主　　题：柠檬酸盐 水合作用 金属学 失重法 

摘      要：Al2-xYxW3O12 (x=0.2,0.5,0.8,1.0,1.2,1.5,1.7 and 2.0) powders were synthesized by citrate sol-gel *** concentration of species in a citric solution for preparing Al2-xYxW3O12 powders was *** powders were characterized by differential thermal analysis(DTA),thermogravimetry(TG),X-ray diffractometry(XRD) and scanning electron microscopy(SEM),*** solid solution of Al2-xYxW3O12 is formed with x values varying from 0 to *** maximum solid solubility of Y2O3 in Al2W3O12 and Al2O3 in Y2W3O12 is less than 0.5.Y2W3O12 easily absorbs water in air and forms a composition of Y2W3O12·3.2H2O,and Al2W3O12 forms Al2W3O12·0.17H2O in the same condition.