THE SOL-GEL PROCESS OF THE YTTRIUM COMPLEX FROM YTTRIUM ACETATE

被引：15

作者：

WENG, WJ

YANG, J

DING, ZS

机构：

[1] Department of Materials Science and Engineering, Zhejiang University, Hangzhou

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1994年 / 169卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/0022-3093(94)90238-0

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Solid yttrium acetate becomes soluble in methoxyethanol, when diethylenetriamine is introduced and the molar ratio of diethylenetriamine to yttrium acetate is greater-than-or-equal-to 1.5. It is proposed that the mechanism of the dissolution is: (1) free alkoxyl groups are formed due to the reaction of diethylenetriamine with methoxyethanol; (2) the charged alkoxyl groups are coordinated with Y3+ in yttrium acetate to form a soluble species. When water is added to the methoxyethanol solution of yttrium acetate with diethylenetriamine, a gel is formed. The optical transmission of the gels is dependent on the content of H2O. The detailed analysis of the reactions related to dissolution of Y(OAC)3 and its sol-gel process is given.

引用

页码：177 / 182

页数：6