Microstructural Properties of Nb-Si Based Alloys Manufactured by Powder Metallurgy
An NbTiHfCrAlSi niobium silicide based atomized powder has been compacted by a conventional technique (hot extrusion) and by spark plasma sintering to nearly fully dense alloys. Both materials exhibit a metastable fine micrometer-sized microstructure that has been coarsened by a subsequent heat treatment. The densification of the SPS sample takes place between ca. 800°C and 1300°C.
S. Drawin et al., "Microstructural Properties of Nb-Si Based Alloys Manufactured by Powder Metallurgy", Advanced Materials Research, Vol. 278, pp. 533-538, 2011