In Situ Ductile Toughening of Nb2Al by Combustion Synthesis

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 propagat...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1992-06, Vol.75 (6), p.1678-1681
Main Author: Bhattacharya, Arun K.
Format: Article
Language:English
Subjects:
aluminides
Applied sciences
combustion synthesis
ductility
Exact sciences and technology
fracture toughness
Metals. Metallurgy
niobium
Powder metallurgy. Composite materials
Production techniques
Technology
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Summary: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.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1992.tb04245.x