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Correlation between mechanical, thermal and electronic properties in Zr-Ni, Cu amorphous alloys


Ristić, Ramir; Stubičar, Mirko; Babić, Emil
Correlation between mechanical, thermal and electronic properties in Zr-Ni, Cu amorphous alloys // Philosophical magazine (2003), 87 (2007), 35; 5629-5637 doi:10.1080/14786430701708364 (međunarodna recenzija, članak, znanstveni)


Naslov
Correlation between mechanical, thermal and electronic properties in Zr-Ni, Cu amorphous alloys

Autori
Ristić, Ramir ; Stubičar, Mirko ; Babić, Emil

Izvornik
Philosophical magazine (2003) (1478-6435) 87 (2007), 35; 5629-5637

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Amorphous alloys; electronic properties; metallic glasses; microhardness; transition metals

Sažetak
We show that mechanical properties (stiffness and hardness) of Zr-Ni, Cu amorphous alloys increase linearly with Ni, Cu content over a wide composition range (22 ≤ xNi, Cu ≤ 65 at%). This correlates with the observed increase in the Debye temperatures and densities with x and shows that the strength of interatomic bonding increases with x in these alloys. Accordingly, the thermal stability (eg. the crystallisation and glass transition temperatures) of these alloys also increases with x. Since the electronic density of states at the Fermi level decreases linearly with x within the same x-range, there exists very simple relationship between the electronic structure and mechanical and thermal properties. We also deduce the mechanical properties of hypothetic amorphous Zr and briefly discuss the possibility of its preparation

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
035-0352827-2841 - Materijali sa elektronskom strukturom modeliranom modernim tehnikama priprave (Ivica Aviani, )
119-1191458-1019 - Elektromagnetska svojstva nanostrukturiranih materijala (Emil Babić, )

Ustanove
Institut za fiziku, Zagreb,
Prirodoslovno-matematički fakultet, Zagreb,
Strojarski fakultet, Slavonski Brod

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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