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

Figure 8

Evolution of (a) of the linear expansion during a SPS reactive sintering from Fe + Al mixture. Red points correspond to XRD phase analysis presented in Figure 6. A zoom of the temperature profile showing the fast increase of the temperature characteristic of the exothermic reaction is inset. (b) Dependence of relative density of interrupted sample, that is, of the different phases (detected by XRD from Figure 6), as a function of temperature. In addition, five zones in agreement with Figure 5 are presented.