INSITU DUCTILE TOUGHENING OF NB2AL BY COMBUSTION SYNTHESIS

被引:8
作者
BHATTACHARYA, AK [1 ]
机构
[1] UNIV CINCINNATI,DEPT MAT SCI & ENGN,CINCINNATI,OH 45221
关键词
NIOBIUM; ALUMINIDES; FRACTURE TOUGHNESS; COMBUSTION SYNTHESIS; DUCTILITY;
D O I
10.1111/j.1151-2916.1992.tb04245.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
Ductile toughening of niobium aluminide (Nb2Al) has been accomplished in situ while combustion synthesizing the compound from a mixture of Nb, Al, and 3 wt% B powders. An enhancement of the fracture toughness of the resulting Nb2Al has been shown to be primarily caused by the interaction of propagating cracks and cores of ductile Nb phases inside the partly combusted Nb powders.
引用
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页码:1678 / 1681
页数:4
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