Strengthening mechanisms and deformation behavior of Au/Ag bilayer using nanoindentation

IF 2.1 4区 物理与天体物理 Q3 PHYSICS, CONDENSED MATTER Solid State Communications Pub Date : 2025-01-18 DOI:10.1016/j.ssc.2025.115844
H. Mes-adi , M. Lablali , M. Ait ichou , K. Saadouni , M. Mazroui
{"title":"Strengthening mechanisms and deformation behavior of Au/Ag bilayer using nanoindentation","authors":"H. Mes-adi ,&nbsp;M. Lablali ,&nbsp;M. Ait ichou ,&nbsp;K. Saadouni ,&nbsp;M. Mazroui","doi":"10.1016/j.ssc.2025.115844","DOIUrl":null,"url":null,"abstract":"<div><div>Thin-film coatings of metals, particularly Gold (Au) and Silver (Ag), have proven to be highly promising for improving the performance and efficiency of micro/nano-electromechanical systems (MEMS/NEMS). This interest needs to explore their mechanical properties. Here, nanoindentation is used to investigate the details of deformation mechanisms and mechanical properties of Au coating film on Ag substrate using molecular dynamics (MD) simulations. The effects of coating Au thickness and indentation velocity on the indented Au/Ag bilayers are investigated by analyzing the load-displacement, hardness, structure and dislocation movement. Most interestingly, the results reveal that the Au/Ag bilayer exhibits significant strengthening when the thickness of the coating Au film is decreased. It is found that the values of force and hardness increase as the coating Au film thickness decreases. Based on extraction dislocations analysis (DXA), a large number of dislocations propagate through the interface when the Au film thickness is below 12 Å. In addition, the variation of indentation velocity shows a significant effect on the mechanical properties of Au/Ag bilayers. The Common Neighbor Analysis (CNA) demonstrates that more defects are generated during nanoindentation process. Accordingly, the force and hardness are found to increase with increasing indentation velocity.</div></div>","PeriodicalId":430,"journal":{"name":"Solid State Communications","volume":"397 ","pages":"Article 115844"},"PeriodicalIF":2.1000,"publicationDate":"2025-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Solid State Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0038109825000195","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, CONDENSED MATTER","Score":null,"Total":0}
引用次数: 0

Abstract

Thin-film coatings of metals, particularly Gold (Au) and Silver (Ag), have proven to be highly promising for improving the performance and efficiency of micro/nano-electromechanical systems (MEMS/NEMS). This interest needs to explore their mechanical properties. Here, nanoindentation is used to investigate the details of deformation mechanisms and mechanical properties of Au coating film on Ag substrate using molecular dynamics (MD) simulations. The effects of coating Au thickness and indentation velocity on the indented Au/Ag bilayers are investigated by analyzing the load-displacement, hardness, structure and dislocation movement. Most interestingly, the results reveal that the Au/Ag bilayer exhibits significant strengthening when the thickness of the coating Au film is decreased. It is found that the values of force and hardness increase as the coating Au film thickness decreases. Based on extraction dislocations analysis (DXA), a large number of dislocations propagate through the interface when the Au film thickness is below 12 Å. In addition, the variation of indentation velocity shows a significant effect on the mechanical properties of Au/Ag bilayers. The Common Neighbor Analysis (CNA) demonstrates that more defects are generated during nanoindentation process. Accordingly, the force and hardness are found to increase with increasing indentation velocity.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
求助全文
约1分钟内获得全文 去求助
来源期刊
Solid State Communications
Solid State Communications 物理-物理:凝聚态物理
CiteScore
3.40
自引率
4.80%
发文量
287
审稿时长
51 days
期刊介绍: Solid State Communications is an international medium for the publication of short communications and original research articles on significant developments in condensed matter science, giving scientists immediate access to important, recently completed work. The journal publishes original experimental and theoretical research on the physical and chemical properties of solids and other condensed systems and also on their preparation. The submission of manuscripts reporting research on the basic physics of materials science and devices, as well as of state-of-the-art microstructures and nanostructures, is encouraged. A coherent quantitative treatment emphasizing new physics is expected rather than a simple accumulation of experimental data. Consistent with these aims, the short communications should be kept concise and short, usually not longer than six printed pages. The number of figures and tables should also be kept to a minimum. Solid State Communications now also welcomes original research articles without length restrictions. The Fast-Track section of Solid State Communications is the venue for very rapid publication of short communications on significant developments in condensed matter science. The goal is to offer the broad condensed matter community quick and immediate access to publish recently completed papers in research areas that are rapidly evolving and in which there are developments with great potential impact.
期刊最新文献
Magnetic and transport properties of polar metal LiOsO3 based junction Analyzing the link between critical phenomena and magnetocaloric effect in Gd52Fe28B20 Investigating dielectric properties and hysteresis cycles in χ3 Borophene: A Monte Carlo study Preparation and thermophysical investigations of water and ethylene glycol based CuO nanofluid using cationic CTAB surfactant for heat transfer application Structure and magnetoelectric properties of flexible PDMS/ GaFeO3 composites
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1