Control of FeAl Composition Produced by SPS Reactive Sintering from Mechanically Activated Powder Mixture

Figure 4

SEM (BSE mode) micrographs of products synthesized by SPS. These are performed on the transverse cut of each of them. The bright layers and the dark ones are Fe and Al phase in the agglomerates, respectively. Contrast of brightness is characteristic of the heterogeneity such as brighter area which can correspond to higher % at. Fe content.