Microstructural characterization of medium entropy alloy thin films

N. Chawake; Jakub Zálešák; Christoph Gammer; Robert Franz; Megan J. Cordill; Jeong Tae Kim; Jürgen Eckert

doi:10.1016/j.scriptamat.2019.10.001

Microstructural characterization of medium entropy alloy thin films

N. Chawake, Jakub Zálešák, Christoph Gammer, Robert Franz, Megan J. Cordill, Jeong Tae Kim, Jürgen Eckert

Erich Schmid Institute of Materials Science

Research output: Contribution to journal › Article › Research › peer-review

11 Citations (Scopus)

Abstract

This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AlCoCrFe (bcc) has a sharp interface between them with an equiatomic composition. Nanodiffraction was used to characterize planar defects in the fcc films. This first study on bilayer film of two MEAs is transformative to other systems and will help fundamental studies on high entropy alloys.

Original language	English
Pages (from-to)	22-26
Number of pages	5
Journal	Scripta materialia
Volume	177.2020
Issue number	1 March
Early online date	17 Oct 2019
DOIs	https://doi.org/10.1016/j.scriptamat.2019.10.001
Publication status	Published - 1 Mar 2020

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© 2019 Acta Materialia Inc.

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AU - Chawake, N.

AU - Zálešák, Jakub

AU - Gammer, Christoph

AU - Franz, Robert

AU - Cordill, Megan J.

AU - Kim, Jeong Tae

AU - Eckert, Jürgen

PY - 2020/3/1

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N2 - This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AlCoCrFe (bcc) has a sharp interface between them with an equiatomic composition. Nanodiffraction was used to characterize planar defects in the fcc films. This first study on bilayer film of two MEAs is transformative to other systems and will help fundamental studies on high entropy alloys.

AB - This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of CoCrFeNi (fcc) and AlCoCrFe (bcc) has a sharp interface between them with an equiatomic composition. Nanodiffraction was used to characterize planar defects in the fcc films. This first study on bilayer film of two MEAs is transformative to other systems and will help fundamental studies on high entropy alloys.

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SP - 22

EP - 26

JO - Scripta materialia

JF - Scripta materialia

IS - 1 March

ER -

Microstructural characterization of medium entropy alloy thin films

Abstract

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