Now showing items 1-11 of 11

    • Aging and structural relaxation of hyper-quenched Mg65Cu25Y10 metallic glass 

      Zhai, Fuqiang; Pineda Soler, Eloi; Ruta, Beatrice; Gonzalez Silveira, Marta; Crespo Artiaga, Daniel (2014-12-05)
      Article
      Open Access
      The structural relaxation, glass transition and crystallization processes of Mg65Cu25Y10 metallic glass are studied by Differential Scanning Calorimetry (DSC) and Mechanical spectroscopy. The relaxation model derived from ...
    • Anti-aging in ultrastable metallic glasses 

      Lüttich, Martin; Giordano, Valentina; LeFloch, Sylvie; Pineda Soler, Eloi; Zontone, Federico; Luo, Yuansu; Samwer, Konrad; Ruta, Beatrice (2018-03-30)
      Article
      Open Access
      As ultrastable metallic glasses (UMGs) are promising candidates to solve the stability issues of conventional metallic glasses, their study is of exceptional interest. By means of x -ray photon correlation spectroscopy, ...
    • Anti-Aging in ultrastable metallic glasses 

      Luettich, Martin; Giordano, Valentina; LeFloch, Sylvie; Pineda Soler, Eloi; Zontone, Federico; Luo, Yuansu; Samwer, Konrad; Ruta, Beatrice (2018)
      Conference report
      Restricted access - publisher's policy
      Metallic glasses (MGs) show outstanding mechanical, physical and chemical properties and so provide a whole class of materials at the cutting-edge research in metallic and glassy systems1. However, MGs suffer from aging, ...
    • Comparing the atomic and macroscopic aging dynamics in an amorphous and partially crystalline Zr44Ti11Ni10Cu10Be25 bulk metallic glass 

      Evenson, Zach; Payes Playa, Alba; Chushkin, Y.; di Michiel, Marco; Pineda Soler, Eloi; Ruta, Beatrice (Cambridge University Press, 2017-06-14)
      Article
      Open Access
      Several recent X-ray photon correlation spectroscopy works have reported an anomalous atomic dynamics in hyperquenched metallic glasses. Here, we compare and contrast these microscopic dynamics with that found in a ...
    • Intrinsic relaxation in a supercooled ZrTiNiCuBe glass forming liquid 

      Amini, Narges; Yang, Fan; Pineda Soler, Eloi; Ruta, Beatrice; Meyer, Andreas (American Physical Society (APS), 2021-05-01)
      Article
      Open Access
      We studied structural relaxation in the bulk metallic glass forming alloy Zr 46.8 Ti 8.2 Cu 7.5 Ni 10 Be 27.5 on different timescales and length scales, with emphasis on the supercooled liquid state. Using x-ray photon ...
    • Microscopic evidence of the connection between liquid-liquid transition and dynamical crossover in an ultraviscous metallic glass former 

      Hechler, Simon; Ruta, Beatrice; Stolpe, Moritz; Pineda Soler, Eloi; Evenson, Zach; Gross, Oliver; Bernasconi, Andrea; Busch, Ralf; Gallino, Isabella (American Physical Society (APS), 2018-08-23)
      Article
      Open Access
      Liquid-liquid transitions are interesting to many researchers since they occur in systems as diverse as monoatomic liquids, multicomponent oxides, and metallic glass formers. In some cases, the crossover is accompanied by ...
    • Relaxation dynamics of Pd-Ni-P metallic glass: Decoupling of anelastic and viscous processes 

      Soriano Franquet, Daniel; Zhou, Hongbo; Hilke, Sven; Pineda Soler, Eloi; Ruta, Beatrice; Wilde, Gerhard (2021-04-01)
      Article
      Open Access
      The stress relaxation dynamics of metallic glass Pd 40Ni40P20 was studied in both supercooled liquid and glassy states. Time-temperature superposition was found in the metastable liquid, implying an invariant shape of ...
    • Structural and dynamical properties of Mg65Cu25Y10 metallic glasses studied by in situ high energy X-ray diffraction and time resolved xray photon correlation spectroscopy 

      Ruta, Beatrice; Giordano, Valentina; Erra, Loredana; Liu, Chaoren; Pineda Soler, Eloi (2014-12-05)
      Article
      Open Access
      We present a temperature investigation of the structural and dynamical evolution of rapidly quenched metallic glasses of Mg65Cu25Y10 at the atomic length scale by means of in situ high energy x-ray diffraction and time ...
    • Sub-T-g relaxation times of the alpha process in metallic glasses 

      Liu, Chaoren; Pineda Soler, Eloi; Crespo Artiaga, Daniel; Qiao, Jichao; Evenson, Zach; Ruta, Beatrice (2017-09-01)
      Article
      Open Access
      The current view of structural relaxation in metallic glasses assumes the presence of primary and secondary processes with different activation energies. While the faster, secondary process can be well characterized in the ...
    • Tuning the memory dependence of vapour deposited metallic glasses 

      Luettich, Martin; Ruta, Beatrice; Luo, Y.; Samwer, Konrad; Giordano, Valentina; Pineda Soler, Eloi (2016)
      Conference report
      Open Access
    • X-Ray Photon Correlation Spectroscopy Reveals Intermittent Aging Dynamics in a Metallic Glass 

      Evenson, Zach; Ruta, Beatrice; Hechler, Simon; Stolpe, Moritz; Pineda Soler, Eloi; Gallino, Isabella; Busch, Ralf (2015-10-21)
      Article
      Open Access
      We use coherent x rays to probe the aging dynamics of a metallic glass directly on the atomic level. Contrary to the common assumption of a steady slowing down of the dynamics usually observed in macroscopic studies, we ...