A novel High-Entropy Alloy-based composite material

Riva, Sephira; Tudball, Adam; Mehraban, Shahin; Lavery, Nicholas; Brown, Stephen G.R.; Yusenko, Kirill V.; Brown, Steve

doi:10.1016/j.jallcom.2017.09.274

Journal article 1311 views 596 downloads

A novel High-Entropy Alloy-based composite material

Sephira Riva, Adam Tudball, Shahin Mehraban, Nicholas Lavery

, Stephen G.R. Brown, Kirill V. Yusenko, Steve Brown

Journal of Alloys and Compounds, Volume: 730, Pages: 544 - 551

Swansea University Authors: Nicholas Lavery , Steve Brown

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DOI (Published version): 10.1016/j.jallcom.2017.09.274

Abstract

This study reports the results of the addition of different reinforcing agents (i.e. nano-diamonds, SiC, Sc2O3, h-BN, c-BN and CN) on the sintering process of the B2-structured Al2CoCrFeNi High-Entropy Alloy. The best candidate for further thermal, electrical and mechanical characterization was chos...

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Published in:	Journal of Alloys and Compounds
ISSN:	0925-8388
Published:	2018
Online Access:	Check full text
URI:	https://cronfa.swan.ac.uk/Record/cronfa35713
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first_indexed	2017-09-29T19:01:18Z
last_indexed	2020-06-02T18:49:46Z
id	cronfa35713
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spelling	2020-06-02T16:21:36.0152215 v2 35713 2017-09-29 A novel High-Entropy Alloy-based composite material 9f102ff59824fd4f7ce3d40144304395 0000-0003-0953-5936 Nicholas Lavery Nicholas Lavery true false 07a865adc76376646bc6c03a69ce35a9 Steve Brown Steve Brown true false 2017-09-29 MECH This study reports the results of the addition of different reinforcing agents (i.e. nano-diamonds, SiC, Sc2O3, h-BN, c-BN and CN) on the sintering process of the B2-structured Al2CoCrFeNi High-Entropy Alloy. The best candidate for further thermal, electrical and mechanical characterization was chosen to be the alloy containing 2 wt% nano-diamonds. The composite was prepared using spark-plasma sintering of pre-alloyed powders and characterized with SEM-EDX, DSC, Laser Flash Analysis (LFA), electrical conductivity and Seebeck coefficient, dilatometry, Young's modulus, Vicker's hardness, 3-points flexural test. It shows unexpectedly low thermal expansion coefficient (from 3×10−6 to 17×10−6 K−1 between RT and 500 °C), high electrical resistivity and Seebeck coefficient and hardness comparable to the sintered blank Al2CoCrFeNi. Journal Article Journal of Alloys and Compounds 730 544 551 0925-8388 High-entropy alloys; Metal matrix composites; Spark plasma sintering; Nano-diamonds composite; Thermo-electric properties 5 1 2018 2018-01-05 10.1016/j.jallcom.2017.09.274 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University 2020-06-02T16:21:36.0152215 2017-09-29T09:07:56.2428686 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Sephira Riva 1 Adam Tudball 2 Shahin Mehraban 3 Nicholas Lavery 0000-0003-0953-5936 4 Stephen G.R. Brown 5 Kirill V. Yusenko 6 Steve Brown 7 0035713-29092017090952.pdf riva2017.pdf 2017-09-29T09:09:52.2930000 Output 1657821 application/pdf Accepted Manuscript true 2018-09-28T00:00:00.0000000 false eng
title	A novel High-Entropy Alloy-based composite material
spellingShingle	A novel High-Entropy Alloy-based composite material Nicholas Lavery Steve Brown
title_short	A novel High-Entropy Alloy-based composite material
title_full	A novel High-Entropy Alloy-based composite material
title_fullStr	A novel High-Entropy Alloy-based composite material
title_full_unstemmed	A novel High-Entropy Alloy-based composite material
title_sort	A novel High-Entropy Alloy-based composite material
author_id_str_mv	9f102ff59824fd4f7ce3d40144304395 07a865adc76376646bc6c03a69ce35a9
author_id_fullname_str_mv	9f102ff59824fd4f7ce3d40144304395_*_Nicholas Lavery 07a865adc76376646bc6c03a69ce35a9_*_Steve Brown
author	Nicholas Lavery Steve Brown
author2	Sephira Riva Adam Tudball Shahin Mehraban Nicholas Lavery Stephen G.R. Brown Kirill V. Yusenko Steve Brown
format	Journal article
container_title	Journal of Alloys and Compounds
container_volume	730
container_start_page	544
publishDate	2018
institution	Swansea University
issn	0925-8388
doi_str_mv	10.1016/j.jallcom.2017.09.274
college_str	Faculty of Science and Engineering
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hierarchy_parent_id	facultyofscienceandengineering
hierarchy_parent_title	Faculty of Science and Engineering
department_str	School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised
document_store_str	1
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description	This study reports the results of the addition of different reinforcing agents (i.e. nano-diamonds, SiC, Sc2O3, h-BN, c-BN and CN) on the sintering process of the B2-structured Al2CoCrFeNi High-Entropy Alloy. The best candidate for further thermal, electrical and mechanical characterization was chosen to be the alloy containing 2 wt% nano-diamonds. The composite was prepared using spark-plasma sintering of pre-alloyed powders and characterized with SEM-EDX, DSC, Laser Flash Analysis (LFA), electrical conductivity and Seebeck coefficient, dilatometry, Young's modulus, Vicker's hardness, 3-points flexural test. It shows unexpectedly low thermal expansion coefficient (from 3×10−6 to 17×10−6 K−1 between RT and 500 °C), high electrical resistivity and Seebeck coefficient and hardness comparable to the sintered blank Al2CoCrFeNi.
published_date	2018-01-05T03:44:31Z
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A novel High-Entropy Alloy-based composite material

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