Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation
While the single-particle impact model is widely used in studying the high-velocity impact behavior of particles, its scope is limited to the interaction between an individual particle and the substrate. In this work, a multi-particle molecular dynamics model was established to investigate the impac...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-01-01
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| Series: | Next Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949822824002028 |
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| author | Che Zhang Zhou Li Jiaqing Li Peng Gao Rui Wang Chunyang Xia Guanyu Deng |
| author_facet | Che Zhang Zhou Li Jiaqing Li Peng Gao Rui Wang Chunyang Xia Guanyu Deng |
| author_sort | Che Zhang |
| collection | DOAJ |
| description | While the single-particle impact model is widely used in studying the high-velocity impact behavior of particles, its scope is limited to the interaction between an individual particle and the substrate. In this work, a multi-particle molecular dynamics model was established to investigate the impact behavior of Cu nanoparticles and the surface quality of coatings. It was found that with the increase in particles' impact velocity from 100 m/s to 1500 m/s, three distinct coating structures can be identified: adhesion between nanoparticles, co-deformation, and liquefaction. Due to the anisotropy of plastic deformation, coatings formed by particles with the initial orientation [110] displayed the roughest surface, while those aligned with [111] and [001] exhibited smoother surfaces. Additionally, as nanoscale particles possess limited kinetic energy, it is difficult to create a large crater on the surface of the substrate. Therefore, it was necessary to elevate the temperature to soften the substrate, which can increase the crater depth and improve bonding quality. A successful approach to enhancing the bonding strength and surface quality of coatings involves simultaneous optimization of impact velocity, crystallographic orientation of particles, and substrate temperature. |
| format | Article |
| id | doaj-art-8982caf4bfd74c909025f81fa6ab461c |
| institution | DOAJ |
| issn | 2949-8228 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Next Materials |
| spelling | doaj-art-8982caf4bfd74c909025f81fa6ab461c2025-08-20T03:02:01ZengElsevierNext Materials2949-82282025-01-01610030510.1016/j.nxmate.2024.100305Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigationChe Zhang0Zhou Li1Jiaqing Li2Peng Gao3Rui Wang4Chunyang Xia5Guanyu Deng6Department of Mechanical Engineering, The University of Melbourne, Parkville, VIC 3010, Australia; Corresponding authors.College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, ChinaCollege of Chemical Engineering, Fuzhou University, Fuzhou 350116, ChinaSchool of Chemistry and Molecular Bioscience, University of Wollongong, NSW 2500, Australia; Corresponding authors.School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2500, AustraliaCollege of Engineering, Northeastern University, Boston, MA 02115, USASchool of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, NSW 2500, AustraliaWhile the single-particle impact model is widely used in studying the high-velocity impact behavior of particles, its scope is limited to the interaction between an individual particle and the substrate. In this work, a multi-particle molecular dynamics model was established to investigate the impact behavior of Cu nanoparticles and the surface quality of coatings. It was found that with the increase in particles' impact velocity from 100 m/s to 1500 m/s, three distinct coating structures can be identified: adhesion between nanoparticles, co-deformation, and liquefaction. Due to the anisotropy of plastic deformation, coatings formed by particles with the initial orientation [110] displayed the roughest surface, while those aligned with [111] and [001] exhibited smoother surfaces. Additionally, as nanoscale particles possess limited kinetic energy, it is difficult to create a large crater on the surface of the substrate. Therefore, it was necessary to elevate the temperature to soften the substrate, which can increase the crater depth and improve bonding quality. A successful approach to enhancing the bonding strength and surface quality of coatings involves simultaneous optimization of impact velocity, crystallographic orientation of particles, and substrate temperature.http://www.sciencedirect.com/science/article/pii/S2949822824002028Additive manufacturingCold spray3D printingDeposition technology |
| spellingShingle | Che Zhang Zhou Li Jiaqing Li Peng Gao Rui Wang Chunyang Xia Guanyu Deng Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation Next Materials Additive manufacturing Cold spray 3D printing Deposition technology |
| title | Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation |
| title_full | Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation |
| title_fullStr | Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation |
| title_full_unstemmed | Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation |
| title_short | Multi-particle impact behavior of Cu nanoparticles: A molecular dynamics investigation |
| title_sort | multi particle impact behavior of cu nanoparticles a molecular dynamics investigation |
| topic | Additive manufacturing Cold spray 3D printing Deposition technology |
| url | http://www.sciencedirect.com/science/article/pii/S2949822824002028 |
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