Graphene coating makes copper more resistant to plastic deformation

Xiaofei Zhu; Yinbo Zhao; Laipeng Ma; Guangping Zhang; Weicai Ren; Xianghe Peng; Ning Hu; Llew Rintoul; John M. Bell; Cheng Yan

doi:10.1016/j.coco.2019.01.006

Graphene coating makes copper more resistant to plastic deformation

Xiaofei Zhu, Yinbo Zhao, Laipeng Ma, Guangping Zhang, Weicai Ren, Xianghe Peng, Ning Hu, Llew Rintoul, John M. Bell, Cheng Yan

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

14 Citations (Scopus)

Abstract

Nanoindentation tests and molecular dynamics (MD) simulations are conducted to investigate the effect of graphene (Gr) coating on the deformation behavior of a <001> orientation copper (Cu) substrate. Distinct displacement burst (pop-in) is observed in the load-depth curve, which is due to the fracture of the Gr coating. Compared to bare Cu, the MD simulations indicate different dislocation activities at the Gr/Cu interface. The effect of image stress confinement on the glide of dislocations in Cu is considered to be the reason responsible for the increased hardness in the Gr/Cu system.

Original language	English
Pages (from-to)	106-111
Number of pages	6
Journal	Composites Communications
Volume	12
DOIs	https://doi.org/10.1016/j.coco.2019.01.006
Publication status	Published - 2019 Apr
Externally published	Yes

Keywords

copper
dislocation mobility
graphene
molecular dynamics
nanoindentation

ASJC Scopus subject areas

Ceramics and Composites
Mechanics of Materials
Polymers and Plastics
Materials Chemistry

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10.1016/j.coco.2019.01.006

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title = "Graphene coating makes copper more resistant to plastic deformation",

abstract = "Nanoindentation tests and molecular dynamics (MD) simulations are conducted to investigate the effect of graphene (Gr) coating on the deformation behavior of a <001> orientation copper (Cu) substrate. Distinct displacement burst (pop-in) is observed in the load-depth curve, which is due to the fracture of the Gr coating. Compared to bare Cu, the MD simulations indicate different dislocation activities at the Gr/Cu interface. The effect of image stress confinement on the glide of dislocations in Cu is considered to be the reason responsible for the increased hardness in the Gr/Cu system.",

keywords = "copper, dislocation mobility, graphene, molecular dynamics, nanoindentation",

author = "Xiaofei Zhu and Yinbo Zhao and Laipeng Ma and Guangping Zhang and Weicai Ren and Xianghe Peng and Ning Hu and Llew Rintoul and Bell, {John M.} and Cheng Yan",

note = "Funding Information: This research was supported by the Australia Research Council Discovery Project ( DP150101717 ), the Ministry of Science and Technology of the People{\textquoteright}s Republic of China ( 2016YFA0200101 ), National Science Foundation of China ( 51323205 , 51290273 , 51521091 ), and partially supported by the Joint Foundation of Liaoning Province National Science Foundation and Shenyang National Laboratory for Materials Science ( 2015021005 ). Funding Information: This research was supported by the Australia Research Council Discovery Project (DP150101717), the Ministry of Science and Technology of the People's Republic of China (2016YFA0200101), National Science Foundation of China (51323205, 51290273, 51521091), and partially supported by the Joint Foundation of Liaoning Province National Science Foundation and Shenyang National Laboratory for Materials Science (2015021005). Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = apr,

doi = "10.1016/j.coco.2019.01.006",

language = "English",

volume = "12",

pages = "106--111",

journal = "Composites Communications",

issn = "2452-2139",

publisher = "Elsevier Limited",

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TY - JOUR

T1 - Graphene coating makes copper more resistant to plastic deformation

AU - Zhu, Xiaofei

AU - Zhao, Yinbo

AU - Ma, Laipeng

AU - Zhang, Guangping

AU - Ren, Weicai

AU - Peng, Xianghe

AU - Hu, Ning

AU - Rintoul, Llew

AU - Bell, John M.

AU - Yan, Cheng

N1 - Funding Information: This research was supported by the Australia Research Council Discovery Project ( DP150101717 ), the Ministry of Science and Technology of the People’s Republic of China ( 2016YFA0200101 ), National Science Foundation of China ( 51323205 , 51290273 , 51521091 ), and partially supported by the Joint Foundation of Liaoning Province National Science Foundation and Shenyang National Laboratory for Materials Science ( 2015021005 ). Funding Information: This research was supported by the Australia Research Council Discovery Project (DP150101717), the Ministry of Science and Technology of the People's Republic of China (2016YFA0200101), National Science Foundation of China (51323205, 51290273, 51521091), and partially supported by the Joint Foundation of Liaoning Province National Science Foundation and Shenyang National Laboratory for Materials Science (2015021005). Publisher Copyright: © 2019

PY - 2019/4

Y1 - 2019/4

N2 - Nanoindentation tests and molecular dynamics (MD) simulations are conducted to investigate the effect of graphene (Gr) coating on the deformation behavior of a <001> orientation copper (Cu) substrate. Distinct displacement burst (pop-in) is observed in the load-depth curve, which is due to the fracture of the Gr coating. Compared to bare Cu, the MD simulations indicate different dislocation activities at the Gr/Cu interface. The effect of image stress confinement on the glide of dislocations in Cu is considered to be the reason responsible for the increased hardness in the Gr/Cu system.

AB - Nanoindentation tests and molecular dynamics (MD) simulations are conducted to investigate the effect of graphene (Gr) coating on the deformation behavior of a <001> orientation copper (Cu) substrate. Distinct displacement burst (pop-in) is observed in the load-depth curve, which is due to the fracture of the Gr coating. Compared to bare Cu, the MD simulations indicate different dislocation activities at the Gr/Cu interface. The effect of image stress confinement on the glide of dislocations in Cu is considered to be the reason responsible for the increased hardness in the Gr/Cu system.

KW - copper

KW - dislocation mobility

KW - graphene

KW - molecular dynamics

KW - nanoindentation

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SP - 106

EP - 111

JO - Composites Communications

JF - Composites Communications

ER -

Graphene coating makes copper more resistant to plastic deformation

Abstract

Keywords

ASJC Scopus subject areas

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