A novel evaluation strategy for fatigue reliability of flexible nanoscale films

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	A novel evaluation strategy for fatigue reliability of flexible nanoscale films
	Zheng, SX; Luo, XM; Wang, D; Zhang, GP; Zhang, GP (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
刊名	MATERIALS RESEARCH EXPRESS
	2018-03-01
卷号	5 期号:3 页码:-
关键词	Cu Thin-films Damage Formation Length Scale Gold-films Behavior Stretchability Deformation Specimens Thickness Size
ISSN号	2053-1591
英文摘要	In order to evaluate fatigue reliability of nanoscale metal films on flexible substrates, here we proposed an effective evaluation way to obtain critical fatigue cracking strain based on the direct observation of fatigue damage sites through conventional dynamic bending testing technique. By this method, fatigue properties and damage behaviors of 930 nm-thick Au films and 600 nm-thick Mo-W multilayers with individual layer thickness 100 nm on flexible polyimide substrates were investigated. Coffin-Manson relationship between the fatigue life and the applied strain range was obtained for the Au films and Mo-Wmultilayers. The characterization of fatigue damage behaviors verifies the feasibility of this method, which seems easier and more effective comparing with the other testing methods.; In order to evaluate fatigue reliability of nanoscale metal films on flexible substrates, here we proposed an effective evaluation way to obtain critical fatigue cracking strain based on the direct observation of fatigue damage sites through conventional dynamic bending testing technique. By this method, fatigue properties and damage behaviors of 930 nm-thick Au films and 600 nm-thick Mo-W multilayers with individual layer thickness 100 nm on flexible polyimide substrates were investigated. Coffin-Manson relationship between the fatigue life and the applied strain range was obtained for the Au films and Mo-Wmultilayers. The characterization of fatigue damage behaviors verifies the feasibility of this method, which seems easier and more effective comparing with the other testing methods.
学科主题	Materials Science, Multidisciplinary
语种	英语
资助机构	National Natural Science Foundation of China (NSFC) [51601198, 51571199]; NSFC [51371180]; IMR SYNL-T.S. Ke Research Fellowship [Y6N7611161]
公开日期	2018-06-05
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79458]
专题	金属研究所_中国科学院金属研究所
通讯作者	Luo, XM; Zhang, GP (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci SYNL, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Zheng, SX,Luo, XM,Wang, D,et al. A novel evaluation strategy for fatigue reliability of flexible nanoscale films[J]. MATERIALS RESEARCH EXPRESS,2018,5(3):-.
APA	Zheng, SX,Luo, XM,Wang, D,Zhang, GP,&Zhang, GP .(2018).A novel evaluation strategy for fatigue reliability of flexible nanoscale films.MATERIALS RESEARCH EXPRESS,5(3),-.
MLA	Zheng, SX,et al."A novel evaluation strategy for fatigue reliability of flexible nanoscale films".MATERIALS RESEARCH EXPRESS 5.3(2018):-.