ISIJ International
Online ISSN : 1347-5460
Print ISSN : 0915-1559
ISSN-L : 0915-1559
Dimensional changes following the SHS process of the refractory intermetallics NiAl and Ni3Al
Mariana LucaciMihai CojocaruCristian Dragos Vidu
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2000 Volume 40 Issue Suppl Pages S68-S72

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Abstract

The paper presents a study on the obtaining of NiAl and Ni3Al refractory intermetallics in their stoichiometric and homogeneity range, obtained by self-propagation high temperature synthesis, the thermo-explosion variant. The processing variables were the compacting pressure and the material chemical composition. The influence of unreacted materials green porosity on the sintered materials contraction/expansion was determined. The interdependence of the liquid amount appeared during synthesis of the reaction products and the green as well as final material porosity were established.

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