Proposed interpretation for possible solid-state amorphization in some Cu-based binary metal systems

Li, Z. F.; Li, Z.F.; Lai, W. S.; Lai, W.S.; Liu, B. X.; Liu, B.X.
December 2000
Applied Physics Letters;12/11/2000, Vol. 77 Issue 24
Academic Journal
According to a recently proposed criterion for solid-state amorphization to take place in a binary metal system, it is necessary to have a negative thermodynamic factor ΔF defined as a Gibbs free energy difference between an amorphous phase and the initial energetic state of the multilayers/or bilayer together with a relevantly large kinetic factor κ correlated to a diffusivity difference between the constituent metals of the system. The criterion is employed to discuss the possibility of solid-state amorphization in five representative Cu-based binary metal systems featuring either positive or negative heat of mixing. It turns out that the prediction based on the above argument for these Cu-based systems is in good agreement with the experimental results observed so far. © 2000 American Institute of Physics.


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