Figure 5From: Physically synthesized Ni-Cu nanoparticles for magnetic hyperthermia(a) Cu-Ni nanosized particles (spherical) after ball milling for 7 days. (b) Cu-Ni nanosized particles (flake-like) after ball milling for 7 days. (c) High magnification (200000×) TEM micrograph of a Cu-Ni particle showing its polymorph structure.Back to article page