Sol-gel derived porous silica films

被引：50

作者：

Mezza, P ^{[1
]}

Phalippou, J ^{[1
]}

Sempere, R ^{[1
]}

机构：

[1] Univ Montpellier 2, Lab Verres, UMR 5587, F-34095 Montpellier 5, France

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1999年 / 243卷 / 01期

关键词：

D O I：

10.1016/S0022-3093(98)00825-4

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：

A modified sol-gel process, involving gelation of drops of a starting solution pressed on a substrate by a non-wetting glass, has been employed to obtain porous silica coatings on glass substrates at room temperature and pressure. Deposited films are homogeneous and crack-free. Films having a thickness higher than 5 mu m can be obtained. These aerogel like coatings show a refractive index lower than 1.2 and a dielectric constant lower than 2 with a pore volume of about 60%. Films exhibit hydrophobic properties because of surface modification. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：75 / 79

页数：5

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