Journal of Nanomaterials / 2018 / Article / Fig 6

Research Article

Effect of Chemical Composition on the Nanoscale Ordering Transformations of Physical Mixtures of Pd and Cu Nanoparticles

Figure 6

(a) Color map of the XRD intensity evolution for the PdCu 3 : 1 nanoparticle mixture on the SiO2/Si substrate isothermally annealed at 450°C in a forming gas atmosphere showing the formation of the ordered B2 phase and another alloyed phase (see also [7]). The heating process started at time 60 sec. (b) Color map of the XRD intensity evolution of the PdCu nanoparticle mixture on the SiO2/Si ramp annealed from 450°C to 750°C in a forming gas atmosphere showing the incomplete transformation of the B2 phase into the disordered fcc alloy phase. (c) -2 XRD scans after annealing at 450°C and 750°C. (d) Time evolution of the calculated XRD integrated intensities corresponding to the various peaks shown in (b) during ramp annealing from 450° to 750°C.
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