TECHNIQUE FOR THE R-CURVE DETERMINATION OF Y-TZP USING INDENTATION-PRODUCED FLAWS

被引：52

作者：

ANDERSON, RM

BRAUN, LM

机构：

[1] The State University of New Jersey, Rutgers, Piscataway, New Jersey

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 10期

关键词：

fracture toughness; indentation; R‐curve; transformation toughening; zirconia: yttria stabilized tetragonal polycrystals;

D O I：

10.1111/j.1151-2916.1990.tb06716.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：

A technique was developed to estimate the R‐curve behavior of Y‐TZP using indentation‐produced flaws. This technique allows crack‐growth resistance to be determined for short crack extensions (micrometers). For Y‐TZP samples sintered at 1600°C for 1 h (mean grain size, 0.7 μm), the crackgrowth resistance increases rapidly over the first 10 μm. Peak toughness values determined from this technique correlate with chevron‐notch fracture toughness if the ellipticity of the indentation‐produced flaw is considered. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：3059 / 3062

页数：4

共 28 条

[1]

BECHER PF, 1989, 91ST ANN M AM CER SO

[2]

BRAUN LM, 1988, 90TH ANN M AM CER SO

[3] MEASUREMENT OF THE CRYSTALLOGRAPHICALLY TRANSFORMED ZONE PRODUCED BY FRACTURE IN CERAMICS CONTAINING TETRAGONAL ZIRCONIA [J].