Malviya, Kirtiman D ; Oliveira, Eliezer F ; Autreto, Pedro A S ; Ajayan, Pulickel M ; Galvão, Douglas S ; Tiwary, Chandra S ; Chattopadhyay, Kamanio (2019) Mixing the immiscible through high-velocity mechanical impacts: an experimental and theoretical study Journal of Physics D: Applied Physics, 52 (44). p. 445304. ISSN 0022-3727
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Official URL: http://doi.org/10.1088/1361-6463/ab36d1
Related URL: http://dx.doi.org/10.1088/1361-6463/ab36d1
Abstract
In two-component metallic systems, thermodynamic immiscibility leads to phase separation such as in two-phase eutectic compositional alloys. The limit of the immiscibility of component elements under non-equilibrium conditions have been explored, but achieving complete miscibility and formation of single phase microstructures in eutectic alloys would be unprecedented. Here, we report that during the low-temperature ball milling that provides high energy impact, complete mixing of phases can occur in immiscible Ag–Cu eutectic alloys. From combined theoretical and experimental studies, we show that impact can produce solid solutions of Ag–Cu nanoparticles of eutectic composition. Our results show that phase diagrams of low dimensional materials under non-equilibrium conditions remain unexplored and could lead to new alloy microstructures drastically different from their bulk counterparts.
Item Type: | Article |
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Source: | Copyright of this article belongs to IOP Publishing Ltd |
ID Code: | 135178 |
Deposited On: | 20 Jan 2023 04:45 |
Last Modified: | 20 Jan 2023 04:45 |
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