Figure 1

Representative morphology, microstructure and thermal properties of bulk metallic glasses. (a) Bulk metallic glass prepared by mold casting. The fully amorphous sample has a diameter of ∼30 mm. (b) Typical high-resolution electron microscopy image and electron diffraction pattern (inset) of a BMG (adapted from Ref. 54, © 2006 APS). The maze-like disordered structure persists down to the sub-nanoscale. (c) Differential scanning calorimetry curve for a bulk glassy sample, showing the glass transition and wide supercooled region (courtesy of W. Zhang, Tohoku University, Japan).