Looking for footprint of bulk metallic glass in electronic and phonon heat capacities of Cu$_{; ; 55}; ; $Hf$_{; ; 45-x}; ; $Ti$_{; ; x}; ; $ alloys (CROSBI ID 206589)
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Podaci o odgovornosti
Remenyi, Gyorgy ; Biljaković, Katica ; Starešinić, Damir ; Dominko, Damir ; Ristić, Ramir ; Babić, Emil ; Figueroa, Ignacio A. ; Davies, H. A.
engleski
Looking for footprint of bulk metallic glass in electronic and phonon heat capacities of Cu$_{; ; 55}; ; $Hf$_{; ; 45-x}; ; $Ti$_{; ; x}; ; $ alloys
We report on the heat capacity investigation of Cu55Hf45-xTix metallic glasses. The most appropriate procedure to estimate low temperature electronic and phonon contributions has been determined. Both contributions exhibit monotonous Ti concentration dependence, demonstrating that there is no relation of either the electron density of states at the Fermi level or the Debye temperature to the increased glass forming ability in the Ti concentration range x=15–30. The thermodynamic parameters (e.g., reduced glass temperature) remain better indicators in assessing the best composition for bulk metallic glass formation.
bulk metallic glasses ; glass forming ability ; ternary alloys ; heat capacity
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