Crack-tip toughness of a soft lead zirconate titanate

被引：31
|
作者：
Njiwa, ABK [1 ]
Fett, T
Lupascu, DC
Rödel, J
机构：
[1] TH Darmstadt, Inst Mat Sci, D-64287 Darmstadt, Germany
[2] Forschungszentrum Karlsruhe, Inst Mat Forsch 2, D-76021 Karlsruhe, Germany
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2003年 / 86卷 / 11期
关键词：
D O I：
10.1111/j.1151-2916.2003.tb03593.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：
Crack-opening displacement (COD) measurements were performed on a commercial lead zirconate titanate (PZT). The intrinsic fracture toughness (or crack-tip toughness) of this material was determined using a new evaluation procedure, which takes into account the near-tip CON and complete crack profile CODs. The crack-tip toughness K-10 was determined from an extrapolation of COD data obtained at various loading stages, thus avoiding the complications caused by subcritical crack growth in PZT. Results for plane strain and plane stress condition are presented.
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页码：1973 / 1975
页数：3
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