Hydrogen-induced delayed fracture of alumina ceramics

被引：0
|
作者：
Shi, B [1 ]
Su, YJ [1 ]
Qiao, LJ [1 ]
Chu, WY [1 ]
机构：
[1] Univ Sci & Technol Beijing, Dept Phys Mat, Beijing 100083, Peoples R China
来源：
ACTA METALLURGICA SINICA | 2001年 / 37卷 / 09期
关键词：
alumina; ceramics; hydrogen-Induced delayed fracture;
D O I：
暂无
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Hydrogen-induced delayed fracture could occur in alumina ceramics during dynamic charging under constant load. The threshold stress intensity factors were K-IH=0.71K(IC)(i=20 mA/cm(2)) and 0.45K(IC)(i=400 mA /cm(2)), respectively. The fracture surface of hydrogen-induced delayed fracture was intergranular, but that of overloading fracture was mixed intergranular and transgranular.
引用
收藏
页码：932 / 934
页数：3
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