Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation

doi:10.1016/j.ijmecsci.2018.02.035

IMECH-IR > 非线性力学国家重点实验室

	Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation
	Long X; Tang WB; Feng YH(冯义辉); Chang C; Keer LM; Yao Y
发表期刊	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
	2018-05-01
卷号	140 页码:60-67
ISSN	0020-7403
摘要	Nanoindentation experiments were performed at room temperature on pressure-less sintered silver nanoparticles (AgNP) samples. Two representative die attach solder materials: sintered electrically conductive silver adhesive and conventional Sn-3.0Ag center dot 0.5Cu solder were investigated. A novel technique of multiple strain-rate jumps is adopted accompanied by the continuous stiffness measurement, which can effectively determine the strain rate sensitivity (SRS) with good accuracy. Different strain rates and indentation depths are considered to obtain the nanomechanical properties such as hardness and Young's modulus. Compared with Young's modulus of sintered AgNP, the effect of applied strain rate is more influential to the hardness. In the loading stage, the SRS exponent decreases due to a smaller variation of hardness at a greater indentation depth. In the holding stage prior to the unloading of the applied indentation force, the creep displacement is relatively insensitive to the applied strain rate, however, the creep strain rate decays exponentially and the corresponding stress exponents are determined. (C) 2018 Elsevier Ltd. All rights reserved.
关键词	Silver Nanoparticles Strain Rate Sensitivity Nanoindentation Strain Rate Sensitivity Creep Strain Rate Stress Exponent
DOI	10.1016/j.ijmecsci.2018.02.035
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000432765300006
关键词[WOS]	MECHANICAL-PROPERTIES ; NANOINDENTATION ; TEMPERATURE ; CREEP ; EVOLUTION ; TESTS ; SN
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
项目资助者	National Natural Science Foundation of China(51508464 ; Natural Science Foundation of Shaanxi Province(2017JM1013) ; Fundamental Research Funds for the Central Universities(3102016ZY017) ; Astronautics Supporting Technology Foundation of China(2017-HT-XG) ; 11772257)
论文分区	一类
力学所作者排名	3
引用统计	被引频次：41[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77498
专题	非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Long X,Tang WB,Feng YH,et al. Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2018,140:60-67.
APA	Long X,Tang WB,冯义辉,Chang C,Keer LM,&Yao Y.(2018).Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,140,60-67.
MLA	Long X,et al."Strain rate sensitivity of sintered silver nanoparticles using rate-jump indentation".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 140(2018):60-67.

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