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Ti–Fe nanoparticles were prepared by pulsed wire discharge (PWD) using iron (Fe) and titanium (Ti) twisted wire in Ar gas at a pressure of 100 kPa. The content of Fe (C Fe), which was changed from 0 to 100 wt %, was controlled by adjusting the number of Ti and Fe wires in the twisted wire. From the X-ray diffraction, the phase of the prepared nanoparticles changed from α-Ti to β-Ti, FeTi, Fe2Ti, Fe(Ti), and Fe with increasing C Fe. FeTi nanoparticles were obtained at approximately C Fe = 30 wt %. From these results, the phases of the prepared Ti–Fe nanoparticles were controlled by adjusting the content of Fe in the twisted wire.

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