Intermetallic compounds have been recognized as potentially useful structural materials. They form the basis for high temperature materials of the future. Intermetallic compounds based on aluminum have attractive characteristics of high strength at elevated temperatures, good corrosion and oxidation resistance, and low densities. This research focuses on the use of the nickel aluminide (Ni3Al) intermetallic compound as a matrix for high temperature composites. The powder processing approach has been adopted for the consolidation of these composites. This paper describes research on powder injection molding (PIM) of an alumina fiber reinforced nickel aluminide intermetallic. Major problems are associated with the debinding process. They have been resolved and composite structures formed. Preliminary investigations on a reactive hot isostatic pressing approach for forming these nickel aluminide matrix composites, are briefly discussed.