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
Source PublicationINTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
2018-05-01
Volume140Pages:60-67
ISSN0020-7403
AbstractNanoindentation 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.
KeywordSilver Nanoparticles Strain Rate Sensitivity Nanoindentation Strain Rate Sensitivity Creep Strain Rate Stress Exponent
DOI10.1016/j.ijmecsci.2018.02.035
Indexed BySCI ; EI
Language英语
WOS IDWOS:000432765300006
WOS KeywordMECHANICAL-PROPERTIES ; NANOINDENTATION ; TEMPERATURE ; CREEP ; EVOLUTION ; TESTS ; SN
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationNational 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)
Classification一类
Ranking3
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77498
Collection非线性力学国家重点实验室
Recommended Citation
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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