INDENTATION CREEP OF NA2O.3SIO2 GLASSES WITH VARIOUS WATER CONTENTS

被引：47

作者：

HAN, WT

TOMOZAWA, M

机构：

[1] Materials Engineering Department, Rensselaer Polytechnic Institute, Troy, New York

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 12期

关键词：

D O I：

10.1111/j.1151-2916.1990.tb04268.x

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：

Time-dependent deformation behavior induced by an indentation, called indentation creep, was investigated for Na2O.3SiO2 glasses with various water contents by measuring the indentation depth as a function of time using a conical indenter. It was found that the indentation creep behavior of the glasses could be best explained as steady-state inhomogeneous (non-Newtonian viscous) flow. Water in the glasses appeared to reduce the stress (or yield stress) needed to cause this flow. Crack initiation of the glasses was promoted by water through this inhomogeneous flow.

引用

页码：3626 / 3632

页数：7

共 33 条

[1] THE NATURE OF DISSOLVED WATER IN SODIUM-SILICATE GLASSES AND ITS EFFECT ON VARIOUS PROPERTIES [J].