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

• Published in: Journal of materials research Vol. 33; no. 19; pp. 3170 - 3183
• Main Authors: Babić, Emil, Pajić, Damir, Zadro, Krešo, Biljaković, Katica, Trontl, Vesna Mikšić, Pervan, Petar, Starešinić, Damir, Figueroa, Ignacio A., Kuršumović, Ahmed, Michalik, Štefan, Lachová, Andrea, Remenyi, György, Ristić, Ramir
• Format: Journal Article
• Language: English
• Published: New York, USA Cambridge University Press 14-10-2018; Springer International Publishing; Springer Nature B.V; Springer
• Subjects: Alloys; Amorphous materials; Applied and Technical Physics; Atomic structure; Biomaterials; Chemical bonds; Coordination numbers; Debye temperature; Dependence; Distribution functions; Elastic properties; Electron transport; Electronic structure; Electrons; Entropy; Inorganic Chemistry; Intermetallic compounds; International conferences; Invited Review; Low temperature; Magnetic properties; Materials Engineering; Materials research; Materials Science; Mechanical properties; Metallic glasses; Nanotechnology; Photoelectric emission; Physical properties; Physics; Radial distribution; Solid solutions; Specific heat; Studies; Synchrotrons; Thermal stability; Transport properties; Valence band; X-ray diffraction; interatomic arrangements; amorphous; electronic structure
• ISSN: 0884-2914; 2044-5326
• DOI: 10.1557/jmr.2018.168

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.