STRUCTURAL-CHANGES OF SOL GEL-DERIVED TIO2-SIO2 COATINGS IN AN ENVIRONMENT OF HIGH-TEMPERATURE AND HIGH HUMIDITY

被引：58

作者：

MATSUDA, A ^{[1
]}

KOGURE, T ^{[1
]}

MATSUNO, Y ^{[1
]}

KATAYAMA, S ^{[1
]}

TSUNO, T ^{[1
]}

TOHGE, N ^{[1
]}

MINAMI, T ^{[1
]}

机构：

[1] UNIV OSAKA PREFECTURE,DEPT APPL CHEM,SAKAI,OSAKA 593,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1993年 / 76卷 / 11期

关键词：

D O I：

10.1111/j.1151-2916.1993.tb04034.x

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：

Structural changes in sol-gel-derived TiO2-SiO2 coatings were found to proceed in an environment of high temperature and high humidity as follows: (1) dissociation of Si-O-Ti bonds in the coating by the attack of water vapor, (2) formation of Ti-O-Ti bonds, and (3) nucleation and growth of anatase TiO2. The coating obtained with the addition of poly(ethylene glycol), PEG, reacts with water vapor more easily than the coating obtained without PEG, since the former is more porous than the latter due to the decomposition of PEG during heat treatment.

引用

页码：2899 / 2903

页数：5

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