Medium-range icosahedral order in quasicrystal-forming Zr2Pd binary metallic glass

TitleMedium-range icosahedral order in quasicrystal-forming Zr2Pd binary metallic glass
Publication TypeJournal Article
Year of Publication2011
AuthorsHuang L, Fang XW, Wang CZ, Kramer MJ, Ding ZJ, Ho KM
Journal TitleApplied Physics Letters
Date Published06/06
ISBN Number0003-6951
Accession NumberISI:000291658900020
Keywordsamorphous-alloys, augmented-wave method, zr-pd

Medium-range order in Zr2Pd metallic glass was studied using a combination of x-ray diffraction experiment and atomistic simulations. We show that, in contrast to earlier experimental interpretations, the icosahedral-like polyhedron is centered around Pd, rather than Zr. Furthermore, we find that the ordered icosahedral packing around Pd extends to the third shell in the way similar to that in the Bergman-type clusters. The existence of Bergman-type clusters sheds interesting light into the formation of nanoquasicrystal phase during crystallization process of Zr2Pd metallic glass. (C) 2011 American Institute of Physics. [doi:10.1063/1.3597302]

URL<Go to ISI>://000291658900020
Alternate JournalAppl Phys LettAppl Phys Lett