MECHANICAL-PROPERTIES OF A TRANSFORMATION-TOUGHENED GLASS-CERAMIC

被引：11
|
作者：
LEATHERMAN, GL [1 ]
TOMOZAWA, M [1 ]
机构：
[1] RENSSELAER POLYTECH INST,DEPT MAT ENGN,TROY,NY 12180
来源：
JOURNAL OF MATERIALS SCIENCE | 1990年 / 25卷 / 10期
关键词：
D O I：
10.1007/BF00581113
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fracture toughness of a transformation-toughened glass-ceramic containing 12 vol% t-ZrO2 was measured. Heat-treatment conditions were selected to produce from the same glass composition a glass-ceramic which contained 12 vol% m-ZrO2 in a nearly identical matrix. The transformation-toughened material was found to have a fracture toughness 65% greater than the m-ZrO2-containing material at room temperature. However, at 77 K both materials were found to have approximately the same fracture toughness. Additionally, the susceptibility of the two glass-ceramics to fatigue was determined. No improvement in fatigue behaviour of the transformation-toughened glass-ceramic over the other glass-ceramic was observed. © 1990 Chapman and Hall Ltd.
引用
收藏
页码：4488 / 4494
页数：7
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