STRENGTHENING OF GLASS BY SOL-GEL COATINGS

被引：72

作者：

FABES, BD

UHLMANN, DR

机构：

[1] Department of Materials Science and Engineering, University of Arizona, Tucson, Arizona

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 04期

关键词：

coatings; flaws; glass; sol‐gel; strength;

D O I：

10.1111/j.1151-2916.1990.tb05146.x

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：

The affects of alkoxide‐derived coatings on the bending strength of silica glass were investigated. For densified coatings, increases in strength of 120% to 130% were found. A model of the strengthening process, based on the filling‐in and partial healing of surface flaws, is proposed. The model accounts for the temperature dependence of strengthening, the inensitivity of strengthening to the size of oligomers in the coating solution, and the insensitivity of strengthening to the thickness of the coating. The presence of a significant residual tensile stress in sol‐gel‐strengthened material is also indicated. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：978 / 988

页数：11

共 26 条

[1]

HYDROLYSIS OF ETHYL SILICATE [J].