Suppressing Grain Growth on Cu Foil Using Graphene
The effect of graphene coating on the growth of grains on bulk copper film was studied. When methane gas is catalytically decomposed on the surface of copper, and a carbon–copper solid solution is formed at high temperature, precipitated carbon on the copper surface forms graphene during r...
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doaj-346e7fb45c204ea0a899a94fcb3ac26a2020-11-25T00:39:56ZengMDPI AGCoatings2079-64122018-09-0181033410.3390/coatings8100334coatings8100334Suppressing Grain Growth on Cu Foil Using GrapheneJaeyeong Lee0Hojun Shin1Jae-Young Choi2Hak Ki Yu3Department of Energy Systems Research, Ajou University, Suwon 16499, KoreaDepartment of Materials Science and Engineering, Ajou University, Suwon 16499, KoreaSchool of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon 16419, KoreaDepartment of Energy Systems Research, Ajou University, Suwon 16499, KoreaThe effect of graphene coating on the growth of grains on bulk copper film was studied. When methane gas is catalytically decomposed on the surface of copper, and a carbon–copper solid solution is formed at high temperature, precipitated carbon on the copper surface forms graphene during rapid cooling through strong sp2 covalent bonding. The graphene layer can prevent the growth of grains by suppressing the diffusion of copper atoms on the surface, even after continuous heat treatment at high temperatures. The actual size of the copper grains was analyzed in terms of repetitive high-temperature heat treatment processes, and the grain growth process was simulated by using thermodynamic data, such as surface migration energy and the binding energy between copper and carbon. In general, transition metals can induce graphene growth on surfaces because they easily form carbon solid solutions at high temperatures. It is expected that the process of graphene growth will be able to suppress grain growth in transition metals used at high temperatures and could be applied to materials that are prone to thermal fatigue issues such as creep.http://www.mdpi.com/2079-6412/8/10/334graphenegrain growthCu–C binding energypseudo-free-standing |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jaeyeong Lee Hojun Shin Jae-Young Choi Hak Ki Yu |
spellingShingle |
Jaeyeong Lee Hojun Shin Jae-Young Choi Hak Ki Yu Suppressing Grain Growth on Cu Foil Using Graphene Coatings graphene grain growth Cu–C binding energy pseudo-free-standing |
author_facet |
Jaeyeong Lee Hojun Shin Jae-Young Choi Hak Ki Yu |
author_sort |
Jaeyeong Lee |
title |
Suppressing Grain Growth on Cu Foil Using Graphene |
title_short |
Suppressing Grain Growth on Cu Foil Using Graphene |
title_full |
Suppressing Grain Growth on Cu Foil Using Graphene |
title_fullStr |
Suppressing Grain Growth on Cu Foil Using Graphene |
title_full_unstemmed |
Suppressing Grain Growth on Cu Foil Using Graphene |
title_sort |
suppressing grain growth on cu foil using graphene |
publisher |
MDPI AG |
series |
Coatings |
issn |
2079-6412 |
publishDate |
2018-09-01 |
description |
The effect of graphene coating on the growth of grains on bulk copper film was studied. When methane gas is catalytically decomposed on the surface of copper, and a carbon–copper solid solution is formed at high temperature, precipitated carbon on the copper surface forms graphene during rapid cooling through strong sp2 covalent bonding. The graphene layer can prevent the growth of grains by suppressing the diffusion of copper atoms on the surface, even after continuous heat treatment at high temperatures. The actual size of the copper grains was analyzed in terms of repetitive high-temperature heat treatment processes, and the grain growth process was simulated by using thermodynamic data, such as surface migration energy and the binding energy between copper and carbon. In general, transition metals can induce graphene growth on surfaces because they easily form carbon solid solutions at high temperatures. It is expected that the process of graphene growth will be able to suppress grain growth in transition metals used at high temperatures and could be applied to materials that are prone to thermal fatigue issues such as creep. |
topic |
graphene grain growth Cu–C binding energy pseudo-free-standing |
url |
http://www.mdpi.com/2079-6412/8/10/334 |
work_keys_str_mv |
AT jaeyeonglee suppressinggraingrowthoncufoilusinggraphene AT hojunshin suppressinggraingrowthoncufoilusinggraphene AT jaeyoungchoi suppressinggraingrowthoncufoilusinggraphene AT hakkiyu suppressinggraingrowthoncufoilusinggraphene |
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1725292374815408128 |