NiAl–TiC–Al2O3 composite formed by self-propagation high-temperature synthesis process: Combustion behaviour, microstructure, and properties

Abstract

Intermetallic-ceramic composites formed by the self-propagation high-temperature synthesis (SHS) process have attracted much interest in research development since they offer low-cost production and mechanical properties that have characteristically high performance. The objective of this work was to study the effect of reactant compositions on the combustion behaviour, microstructure and mechanical properties of the synthesized product of NiAl–TiC–Al2O3 composite. The reaction mechanism of the synthesized products was discussed based on the observations of the combustion reaction and the microstructure characterization. The results provided information on the relationship between the reactant composition, microstructure and the properties of the products of NiAl–TiC–Al2O3 composites formed by the SHS process.