Subcritical crack growth in zirconia-toughened alumina (ZTA) ceramics

被引：25

作者：

Szutkowska, M

Boniecki, M

机构：

[1] Inst Met Cutting, PL-30011 Krakow, Poland

[2] Inst Elect Mat Technol, PL-01919 Warsaw, Poland

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2006年 / 175卷 / 1-3期

关键词：

subcritical crack growth (SCG); Fracture toughness; v-K-1; curve;

D O I：

10.1016/j.jmatprotec.2005.04.030

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study of subcritical crack growth in zirconia-toughened alumina (ZTA) ceramics was carried. The Al2O3-10 Wt% ZrO2 ceramics containing two types of ZrO2 particles: 3 mol% yttria stabilized ZrO2 and pure ZrO2 were tested. For comparison, the alumina ceramics was included to examination. The load-relaxation technique was used for observation subcritical crack growth. The crack length was evaluated by linear-elastic analysis from the compliance of single-edge-notched specimen in three-point bending test. Parameters n, log A, work-of-fracture (WOF), stress intensity factor at the moment of crack initiation K-I(i) and maximum values of stress intensity factor K-I(maz) were determined. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：416 / 420

页数：5

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