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Structure property relationship in (TiZrNbCu)1−xNix metallic glasses

DOI: 10.1557/jmr.2018.168 DOI Help

Authors: Emil Babić (University of Zagreb) , Damir Pajić (Institute of Physics, Zagreb) , Krešo Zadro (University of Zagreb) , Katica Biljaković (Institute of Physics, Zagreb) , Vesna Mikšić Trontl (Institute of Physics, Zagreb) , Petar Pervan (Institute of Physics, Zagreb) , Damir Starešinić (Institute of Physics, Zagreb) , Ignacio A. Figueroa (Ciudad Universitaria Coyoacan) , Ahmed Kuršumović (University of Cambridge) , Stefan Michalik (Diamond Light Source) , Andrea Lachova (P.J. Šafárik University in Košice) , György Remenyi (Universite Grenoble Alpes) , Ramir Ristić (University of Osijek)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Materials Research , VOL 504S , PAGES 1 - 14

State: Published (Approved)
Published: June 2018

Abstract: The atomic structure, electronic structure, and physical properties of (TiZrNbCu)1−xNix (x ≤ 0.5) metallic glasses (MGs) were studied in both the high-entropy (0 < x < 0.35) and the higher Ni concentration range (x ≥ 0.35). Atomic structure studies performed with X-ray diffraction and synchrotron powder diffraction provided average atomic volumes, structure factors, radial distribution functions, coordination numbers, and packing densities. Electronic structure studies performed using photoemission spectroscopy and low-temperature specific heat provided information about the electronic density of states within the valence band and at the Fermi level and also about interatomic bonding and atomic vibrations [from the Debye temperature and the boson peak (BP)]. Variations of both atomic structure and electronic structure with x showed a clear change for x ≥ 0.35, which corresponds to a valence electron number ≥7.4. All physical properties, namely, thermal stability parameters, Debye temperatures, BPs, magnetic, elastic, and electronic transport properties, change their concentration-dependence for x ≥ 0.35. The results are compared with those for binary and ternary MGs of the same elements.

Journal Keywords: amorphous; electronic structure; interatomic arrangements

Subject Areas: Materials


Instruments: I12-JEEP: Joint Engineering, Environmental and Processing