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Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography

Llion Evans Orcid Logo, L. Margetts, V. Casalegno, F. Leonard, T. Lowe, P.D. Lee, M. Schmidt, P.M. Mummery

Fusion Engineering and Design, Volume: 89, Issue: 6, Pages: 826 - 836

Swansea University Author: Llion Evans Orcid Logo

Abstract

This work investigates the thermal performance of four novel CFC–Cu joining techniques. Two involve direct casting and brazing of Cu onto a chromium modified CFC surface, the other two pre-coat a brazing alloy with chromium using galvanisation and sputtering processes. The chromium carbide layer at...

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Published in: Fusion Engineering and Design
ISSN: 0920-3796
Published: 2014
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URI: https://cronfa.swan.ac.uk/Record/cronfa39529
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spelling 2021-01-14T13:28:43.2944143 v2 39529 2018-04-20 Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography 74dc5084c47484922a6e0135ebcb9402 0000-0002-4964-4187 Llion Evans Llion Evans true false 2018-04-20 MECH This work investigates the thermal performance of four novel CFC–Cu joining techniques. Two involve direct casting and brazing of Cu onto a chromium modified CFC surface, the other two pre-coat a brazing alloy with chromium using galvanisation and sputtering processes. The chromium carbide layer at the interface has been shown to improve adhesion. Thermal conductivity across the join interface was measured by laser flash analysis. X-ray tomography was performed to investigate micro-structures that might influence the thermal behaviour. It was found that thermal conductivity varied by up to 72%. Quantification of the X-ray tomography data showed that the dominant feature in reducing thermal conductivity was the lateral spread of voids at the interface. Correlations were made to estimate the extent of this effect. Journal Article Fusion Engineering and Design 89 6 826 836 0920-3796 Thermal conductivity; Laser flash; X-ray tomography; Carbon fibre composites; Copper; Joining 30 6 2014 2014-06-30 10.1016/j.fusengdes.2014.05.002 https://www.sciencedirect.com/science/article/pii/S0920379614003615 COLLEGE NANME Mechanical Engineering COLLEGE CODE MECH Swansea University EPSRC, University of Manchester 2021-01-14T13:28:43.2944143 2018-04-20T16:15:13.7687699 College of Engineering Engineering Llion Evans 0000-0002-4964-4187 1 L. Margetts 2 V. Casalegno 3 F. Leonard 4 T. Lowe 5 P.D. Lee 6 M. Schmidt 7 P.M. Mummery 8 0039529-20042018162401.pdf Evans_FusEngDes_2014June.pdf 2018-04-20T16:24:01.3030000 Output 3611914 application/pdf Version of Record true 2018-04-20T00:00:00.0000000 true eng
title Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
spellingShingle Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
Llion Evans
title_short Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
title_full Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
title_fullStr Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
title_full_unstemmed Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
title_sort Thermal characterisation of ceramic/metal joining techniques for fusion applications using X-ray tomography
author_id_str_mv 74dc5084c47484922a6e0135ebcb9402
author_id_fullname_str_mv 74dc5084c47484922a6e0135ebcb9402_***_Llion Evans
author Llion Evans
author2 Llion Evans
L. Margetts
V. Casalegno
F. Leonard
T. Lowe
P.D. Lee
M. Schmidt
P.M. Mummery
format Journal article
container_title Fusion Engineering and Design
container_volume 89
container_issue 6
container_start_page 826
publishDate 2014
institution Swansea University
issn 0920-3796
doi_str_mv 10.1016/j.fusengdes.2014.05.002
college_str College of Engineering
hierarchytype
hierarchy_top_id collegeofengineering
hierarchy_top_title College of Engineering
hierarchy_parent_id collegeofengineering
hierarchy_parent_title College of Engineering
department_str Engineering{{{_:::_}}}College of Engineering{{{_:::_}}}Engineering
url https://www.sciencedirect.com/science/article/pii/S0920379614003615
document_store_str 1
active_str 0
description This work investigates the thermal performance of four novel CFC–Cu joining techniques. Two involve direct casting and brazing of Cu onto a chromium modified CFC surface, the other two pre-coat a brazing alloy with chromium using galvanisation and sputtering processes. The chromium carbide layer at the interface has been shown to improve adhesion. Thermal conductivity across the join interface was measured by laser flash analysis. X-ray tomography was performed to investigate micro-structures that might influence the thermal behaviour. It was found that thermal conductivity varied by up to 72%. Quantification of the X-ray tomography data showed that the dominant feature in reducing thermal conductivity was the lateral spread of voids at the interface. Correlations were made to estimate the extent of this effect.
published_date 2014-06-30T03:53:38Z
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score 10.902061