ALKALI PASSIVATION MECHANISM OF SOL-GEL DERIVED TIO2-SIO2 FILMS COATED ON SODA-LIME-SILICA GLASS SUBSTRATES

被引：0

作者：

MATSUDA, A ^{[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：

NIPPON SERAMIKKUSU KYOKAI GAKUJUTSU RONBUNSHI-JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1992年 / 100卷 / 09期

关键词：

SOL-GEL METHOD; ALKALI PASSIVATION; TITANIA-SILICA; COATING FILM; GETTERING EFFECT;

D O I：

暂无

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：

Alkali passivation mechanism of sol-gel derived TiO2-SiO2 glass films with different TiO2 contents coated on a soda-lime-silica glass substrate has been studied by SIMS and XPS analyses, and compared with the results of a sol-gel derived pure SiO2 film. An increase in TiO2 content in the TiO2-SiO2 film increased the sodium concentration in the film, which was induced by sodium migration from the glass substrate during the heat-treatment. It was also found that the chemical state of sodium ions in the TiO2-SiO2 films was different from the state of those either in the glass substrate or in the sol-gel derived pure SiO2 film. It is thus concluded that the TiO2-SiO2 films serve not as a barrier but as an effective getter of alkli ions and thereby effectively improve the weathering resistance of the glass substrate.

引用

页码：1094 / 1097

页数：4

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