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Figure 1

From: Reliable and cost effective design of intermetallic Ni2Si nanowires and direct characterization of its mechanical properties

Figure 1

SEM images of a Cu-6Ni-1.5Si alloy matrix and Ni2Si nanowire.

Discontinuous precipitations of Ni2Si nanoparticles in the grains of Cu alloy matrix (the grey-colored area) in (a) was appeared after 1 hour of heat treatment at 980 °C, followed by half an hour of thermal aging at 500 °C. The DP was fully developed after 7 hours of thermal aging as shown at (b). Image (c) depicts Ni2Si nanowires decoupled from the Cu-6Ni-1.5Si matrix using chemical etching process with conventional acids of NHO3 and C2H5OH with each 50 ml.

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