Structure and Properties of Sol-Gel Coatings from Methyltriethoxysilane and Tetraethoxysilane

被引：174

作者：

Innocenzi, P. ^{[1
]}

Abdirashid, M. O. ^{[1
]}

Guglielmi, M. ^{[1
]}

机构：

[1] Univ Padua, Dipartimento Ingn Meccan, Sez Mat, I-35131 Padua, Italy

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 3卷 / 01期

关键词：

film; methyltriethoxysilane; infrared spectroscopy; structural properties;

D O I：

10.1007/BF00490148

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 [材料科学与工程]; 080502 [材料学];

摘要：

Acid catalyzed solutions of methyltriethoxysilane (MTES) and tetraethoxysilane (TEOS) were used to obtain bulk materials and silica coatings of about 2 mu m, after densification at 500 degrees C. The structural evolution as a function of MTES content and heat treatment was studied. A higher content of MTES was found to enhance the maximum thickness of the coatings free of cracks. Critical thickness and shrinkage of the films were measured. MTES was also found to affect porosity and to play an important role in avoiding fractures in the films.

引用

页码：47 / 55

页数：9

共 24 条

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CHARACTERIZATION OF SILICA-GELS BY INFRARED REFLECTION SPECTROSCOPY [J].