Synthesis and electron microscopy of high entropy alloy nanoparticles

Singh, Mahander Pratap and Srivastava, Chandan (2015) Synthesis and electron microscopy of high entropy alloy nanoparticles. In: MATERIALS LETTERS, 160 . pp. 419-422.

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Abstract

This work provides a methodology for synthesizing isolated multi-component, high entropy alloy nanoparticles. Wet chemical synthesis technique was used to synthesis NiFeCrCuCo nanoparticles. As synthesized nanoparticles were spherical with an average size of 26.7 +/- 3.3 nm. Average composition of the as-synthesized nanoparticle dispersion was 26 +/- 2 at% Cr, 14 +/- 2 at% Fe, 10 +/- 0.6 at% Co, 25 +/- 0.1 at% Ni and 25 +/- 1.1 at% Cu. Compositional analysis of the nanoparticles conducted using the compositional line profile analysis and compositional mapping on a single nanoparticle level revealed a fairly uniform distribution of all the five component elements within the nanoparticle volume. Electron diffraction analysis clearly revealed that the structure of as-synthesized nanoparticles was face centered cubic. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	MATERIALS LETTERS
Publisher:	ELSEVIER SCIENCE BV
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Keywords:	High entropy alloys; Multi-component alloys; Nanoparticles; Electron microscopy
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	15 Dec 2015 07:47
Last Modified:	15 Dec 2015 07:47
URI:	http://eprints.iisc.ac.in/id/eprint/52908

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