Statistical composition-structure-property correlation and glass-forming ability based on the full icosahedra in Cu–Zr metallic glasses

Sha, Z. D.; Feng, Y. P.; Li, Y.
February 2010
Applied Physics Letters;2/8/2010, Vol. 96 Issue 6, p061903
Academic Journal
Using the large-scale atomic/molecular massively parallel simulator, fraction of the Cu-centered <0,0,12,0> full icosahedra (fico) is obtained from a statistical analysis over a broad compositional range with high resolution in the Cu–Zr binary system. Weak but significant peaks are observed at certain compositions which coincide with good glass formers. This correlation implies that the change in fico is a fundamental structural factor in determining the ease of glass formation. In this regard, fico can be an indicator of glass-forming ability. Our work provides further understanding on the atomic structure of the Cu–Zr system and its effect on glass formation.


Related Articles

  • Design of Cu8Zr5-based bulk metallic glasses. Yang, L.; Xia, J. H.; Wang, Q.; Dong, C.; Chen, L. Y.; Ou, X.; Liu, J. F.; Jiang, J. Z.; Klementiev, K.; Saksl, K.; Franz, H.; Schneider, J. R.; Gerward, L. // Applied Physics Letters;6/12/2006, Vol. 88 Issue 24, p241913 

    Basic polyhedral clusters have been derived from intermetallic compounds at near-eutectic composition by considering a dense packing and random arrangement of atoms at shell sites. Using such building units, bulk metallic glasses can be formed. This strategy was verified in the Cu–Zr...

  • Change in atomic coordination in a heavily deformed metallic glass. Liu, Y.; Schumacher, G.; Riesemeier, H.; Banhart, J. // Journal of Applied Physics;2014, Vol. 115 Issue 20, p203510-1 

    The local structure around Ni and La atoms in Al85Ni10La5 amorphous powder after ball milling was investigated by X-ray absorption spectroscopy. A continuous decrease in coordination number of Ni and La as a function of milling time was observed, while the nearest neighbour distance and the mean...

  • Researchers Uncover Metallic Glass Structure.  // JOM: The Journal of The Minerals, Metals & Materials Society (TM;Mar2006, Vol. 58 Issue 3, p8 

    Reports on the discovery of the atomic-scale structure of metallic glasses by researchers at John Hopkins University. Instrument used by scientist to view the configuration of atoms in traditional metals; Factor which affects the way a material forms as a glass and the mechanical process it...

  • A constitutive theory and modeling on deviation of shear band inclination angles in bulk metallic glasses. Ming Zhao; Mo Li // Journal of Materials Research;Aug2009, Vol. 24 Issue 8, p29 

    A constitutive theory for metallic glasses is established that is based mainly on the Drucker-Prager model and a free-volume theory. The primary emphasis of this theory is on volume dilatation and its consequences on mechanical responses in metallic glasses that have been known from studies in...

  • Atomic structure evolution in bulk metallic glass under compressive stress. Wang, G.; Mattern, N.; Pauly, S.; Bednarcčik, J.; Eckert, J. // Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p251906 

    The structural behavior of Cu64.5Zr35.5 bulk metallic glass under compressive stress was investigated by means of in situ high energy x-ray synchrotron diffraction. The topological and chemical short-range order of the glass changes reversible upon loading within the elastic range. The number...

  • Atomic structure of Al88Y7Fe5 metallic glass. Saksl, K.; Jóvári, P.; Franz, H.; Jiang, J. Z. // Journal of Applied Physics;6/1/2005, Vol. 97 Issue 11, p113507 

    The structure of Al88Y7Fe5 metallic glass has been investigated by differential scanning calorimetry, x-ray powder diffraction, and x-ray absorption fine structure (XAFS) techniques. The amorphous alloy crystallizes according to the following scheme: amorphous →α-Al+ residual amorphous...

  • Design of soft magnetic CoSiB metallic glass with low Co contents. Liang Zhang, Ji; Min Wang, Ying; Hung Shek, Chan // Journal of Applied Physics;Oct2011, Vol. 110 Issue 8, p083919 

    Based on the topological models of cluster-lines and crystal clusters destabilization, we propose a modified cluster model for designing metallic glasses based on the proposition that distortion of idealized glass-favoring clusters by addition of solute atoms within their solubility limit can...

  • Effect of atomic configuration and liquid stability on the glass-forming ability of Ca-based metallic glasses. Park, E. S.; Kim, D. H. // Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p201912 

    In the present study, we report a Ca–Mg–Ni alloy exhibiting significantly improved glass-forming ability (GFA). The Ca60Mg25Ni15 bulk metallic glass (BMG) with a diameter of 13 mm is successfully fabricated by a conventional copper mold casting method in air atmosphere. The...

  • Atomic structure in Zr70Cu29Pd1 metallic glass. Yang, L.; Jiang, J. Z.; Liu, T.; Hu, T. D.; Uruga, T. // Applied Physics Letters;8/8/2005, Vol. 87 Issue 6, p061918 

    Local atomic structures of Pd, Cu, and Zr atoms in an as-prepared Zr70Cu29Pd1 glassy alloy and the annealed samples containing icosahedral quasicrystal have been investigated by Pd, Cu, and Zr K-edge extended x-ray absorption fine structure (EXAFS) measurements. It is found that Cu and Zr atoms...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics