CRITICAL STRESS INTENSITY FACTORS OF WET GELS

被引：61

作者：

ZARZYCKI, J

机构：

[1] Univ of Montpellier, Fr, Univ of Montpellier, Fr

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1988年 / 100卷 / 1-3期

关键词：

COMPOSITE MATERIALS - FRACTURE MECHANICS - STRESSES;

D O I：

10.1016/0022-3093(88)90046-4

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：

The first determinations of critical stress intensity factors K//I//C and of fracture surface energy GAMMA of wet SiO//2 gels are presented. The examples comprise: (a) pure LUDOX gels, (b) LUDOX-AEROSIL composites, and (c) sonogels from alcoholates. K//I//C is shown to increase with the progress of syneresis but GAMMA stabilizes itself close to the surface energy of the solid phase exposed during fracture.

引用

页码：359 / 363

页数：5