Fig. 8From: Nanoparticles formation mechanisms through the spark erosion of alloys in cryogenic liquidsParticles of Ni46.7Ti49.2Zr3.41Cu0.8 powder in a martensitic state (B19′ structure). a Dark-field image (from (011) spot) of an 80-nm particle having a distinct internal structure and embedded in agglomerates of nickel and titanium oxides. b Bright-field image of the hollow particle with a diameter of 1 μmBack to article page