Fig. 2: In situ high-energy X-ray diffraction revealing the crystallization mechanism on flash-annealing at a supercritical-heating rate of the glass in a vacuum.
a Time-dependent temperature (red) and resistance (black) of Cu47.5Zr47.5Al5.0 glassy ribbon when resistively heated at a heating rate of Φ ≈ 1100 K s−1 and cooled in a vacuum. b The corresponding temporal evolution of high-energy X-ray patterns on heating and cooling. The inset, in part b, shows a close-up of the crystallization onset for B2 (red arrow) and Cu2ZrAl (orange arrow) phases. Right-hand part in part b: The relative X-ray intensities are normalized to the highest-intensity peak. For clarity, only selected Cu10Zr7 diffraction peaks are plotted (see Fig. 1, part b, for the complete plot). c Selected individual XRD patterns showing the different stages of crystallization and phase transformations. Full symbols label the position of the most pronounced peaks of the identified phases revealed by Rietveld refinement—details can be found in Supplementary Information, Supplementary Fig. 4 (heating), and Supplementary Fig. 6 (cooling). The labeled points correspond to the time of 1: 489 ms; 2: 520 ms; 3: 552 ms; 4: 566 ms; and 5: 1300 ms. Source data of the XRD patterns are provided on https://archive.materialscloud.org/61.
