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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Mixing the immiscible through high-velocity mechanical impacts: an experimental and theoretical study

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Author(s):
Malviya, Kirtiman D. [1] ; Oliveira, Eliezer F. [2, 3, 4] ; Autreto, Pedro A. S. [3, 5] ; Ajayan, Pulickel M. [2] ; Galvao, Douglas S. [3, 4] ; Tiwary, Chandra S. [2, 6] ; Chattopadhyay, Kamanio [1]
Total Authors: 7
Affiliation:
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka - India
[2] Rice Univ, Dept Mat Sci & NanoEngn, Houston, TX 77005 - USA
[3] Univ Estadual Campinas, Gleb Wataghin Inst Phys, UNICAMP, BR-13083859 Campinas, SP - Brazil
[4] Univ Estadual Campinas, UNICAMP, CCES, BR-13083859 Campinas, SP - Brazil
[5] Fed Univ ABC, Ctr Nat Human Sci, Santo Andre, SP - Brazil
[6] Indian Inst Technol, Met & Mat Engn, Kharagpur 721302, W Bengal - India
Total Affiliations: 6
Document type: Journal article
Source: JOURNAL OF PHYSICS D-APPLIED PHYSICS; v. 52, n. 44 OCT 30 2019.
Web of Science Citations: 0
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. (AU)

FAPESP's process: 13/08293-7 - CCES - Center for Computational Engineering and Sciences
Grantee:Munir Salomao Skaf
Support Opportunities: Research Grants - Research, Innovation and Dissemination Centers - RIDC
FAPESP's process: 16/18499-0 - Investigation on the structural, mechanical and functional properties of carbon-based nanostructures
Grantee:Eliezer Fernando de Oliveira
Support Opportunities: Scholarships in Brazil - Post-Doctoral