| A chemo mechanical coupling model of oxidation and interlayer cracking of copper nanowires | |
Gong, Yulong1; Yan, Xin2; Wen JC(温济慈) ; Meng, Qinghua; Li, Ang4; Shi, Xinghua1
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| Source Publication | JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
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| 2023-05 | |
| Volume | 174Pages:105259 |
| ISSN | 0022-5096 |
| Abstract | Copper nanowires have received extensive attention for their potential applications in optics, electricity and catalysis, while oxidation erosion has become the biggest obstacle to their widespread application. Here, we present a chemo mechanical coupling model to investigate the interlayer cracking behaviors of nanowires during oxidation. In contrast to existing chemomechanical models, the present model emphasizes that the process of oxygen entry into copper nanowires is chemical reaction mediated layer by layer replacement rather than vacancymediated diffusion, which means the oxygen ions in the outer layer would not cross over the oxygen atoms in the inner layer during their entry. These conclusions are validated by molecular dynamics simulations. We then discuss the effect of the chemical reaction induced free energy on the stress state of the nanowire during the reaction. Finally, a self developed finite difference procedure is used to solve the control equations and the fracture location is determined according to the energy release rate analysis. We find the fracture of nanowires is closely dependent on the size of nanowire, the reaction rate and the oxygen concentration. This work deepens our understanding of the mechanism of chemo mechanical coupling and fracture behavior of metals due to oxidation, thus has implications in other areas involving chemo mechanical coupling. |
| Keyword | Chemo mechanical coupling Interlayer cracking ReaxFF Energy release rate Oxidation Copper nanowires |
| DOI | 10.1016/j.jmps.2023.105259 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000954726900001 |
| WOS Research Area | Materials Science, Multidisciplinary ; Mechanics ; Physics, Condensed Matter |
| WOS Subject | Materials Science ; Mechanics ; Physics |
| Funding Organization | Strategic Priority Research Program of Chinese Academy of Sciences [XDB36000000] ; National Natural Science Foundation of China [12072082] ; National Natural Science Foundation for Distinguished Young Scholars of China [12125202] |
| Classification | 一类/力学重要期刊 |
| Ranking | 3 |
| Contributor | Shi, XH (corresponding author), Chinese Acad Sci, CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Lab Theoret & Computat Nanosci, Beijing 100190, Peoples R China. ; Shi, XH (corresponding author), Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China. |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/91814 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Chinese Acad Sci, CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Lab Theoret & Computat Nanosci, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Beihang Univ, Sch Mech Engn & Automat, Beijing 100091, Peoples R China 4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 5.Beijing Univ Technol, Beijing Key Lab Microstruct & Properties Adv Mat, Beijing 100124, Peoples R China |
| Recommended Citation GB/T 7714 | Gong, Yulong,Yan, Xin,Wen JC,et al. A chemo mechanical coupling model of oxidation and interlayer cracking of copper nanowires[J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,2023,174:105259.Rp_Au:Shi, XH (corresponding author), Chinese Acad Sci, CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Lab Theoret & Computat Nanosci, Beijing 100190, Peoples R China., Shi, XH (corresponding author), Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China. |
| APA | Gong, Yulong,Yan, Xin,温济慈,Meng, Qinghua,Li, Ang,&Shi, Xinghua.(2023).A chemo mechanical coupling model of oxidation and interlayer cracking of copper nanowires.JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS,174,105259. |
| MLA | Gong, Yulong,et al."A chemo mechanical coupling model of oxidation and interlayer cracking of copper nanowires".JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 174(2023):105259. |
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| Jp2023Fa173.pdf（9859KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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