Mechanical properties of intermetallic compounds at the Sn–3.0Ag–0.5Cu/Cu joint interface using nanoindentation

Xiao, Gesheng; Yang, Xinqi; Gao, Yuan; Li, Zhigang; Shu, Xuefeng

doi:10.1016/j.matdes.2015.09.059

Cited by 50 publications

(12 citation statements)

References 33 publications

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“…Preprocessing parameters of dispersion such as the amount of CNTs, de-ionized (DI) water, surfactant, sonication, and centrifugation time as well as the material and the pore size of filtration membrane influence the properties of the buckypaper sensor. Many researchers have used different combinations of preprocessing dispersion parameters for their applications 27–32 . In this study, we optimized the preprocessing parameters for minimum resistivity through a series of optimization experiments, which are summarized in supporting material.…”

Section: Methodsmentioning

confidence: 99%

“…The process for the synthesis of the buckypaper is carried out by assembling the solution phase, in which the essential step is to prepare a well-homogenized CNT dispersion solution and convert it into a buckypaper through hydroentanglement 26 , hydraulic press 21 and vacuum filtration 27–33 . All of these methods have two things in common: the random arrangement of the CNTs in the bulk form and the significant deterioration of the properties.…”

Section: Introductionmentioning

confidence: 99%

“…From these investigations, it can be concluded that the reported properties of the CNT in the bulk form are lagging behind the extraordinary properties of individual CNTs. A well-ordered and covalently linked CNT network is crucial for exceptional properties in the bulk form, but it is very difficult to obtain a well-organized CNT network due to the likelihood of entanglement and bundling during synthesize of buckypaper 17,27 .…”

Section: Introductionmentioning

confidence: 99%

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Micro-Crack Induced Buckypaper/PI Tape Hybrid Sensors with Enhanced and Tunable Piezo-Resistive Properties

Danish

Luo

2019

Sci Rep

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Piezoresistive properties play a vital role in the development of sensor for structural health monitoring (SHM) applications. Novel stable crack initiation method (SCIM) is established to improve the gauge factor (GF) with maximum achievable working strain region for PI tape enabled buckypaper hybrid sensors. Cracks are generated by applying strain rate-controlled tension force using dynamic mechanical analyzer (DMA). The sensor has been cycled in tension to characterize GF with crack opening. It is determined experimentally that GF increases with increasing crack opening and crack becomes unstable when opening increases above 8 µm. Tremendous improvement in GF has been observed which improved from single-digit to several hundreds. The highest GF obtained so far is ~255, showing 75 times improvement compared with the ones without the SCIM implementation. The crack initiation strain (CIS) is characterized by sonication and centrifugation time. It is determined experimentally that the maximum CIS of 3.5% can be achieved with sonication time of 40 min and increasing centrifuge time has an in-significantly dropping effect on CIS. Excellent stability/reproducibility has been proved/demonstrated on SCIM implemented sensors through a rigorous 12,500 tensile cycle test on DMA. The performance of sensor is practically demonstrated in tension and bending on glass fiber reinforced polymer (GFRP) structures.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Micro-Crack Induced Buckypaper/PI Tape Hybrid Sensors with Enhanced and Tunable Piezo-Resistive Properties

Danish

Luo

2019

Sci Rep

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“…Nanoindentation, which only requires a small sample volume, is a technique to detect the local mechanical properties such as Young's modulus and hardness of the materials. This method has been widely used in material science research such as films, biological tissues and other cement-based materials (Naderi et al, 2016;Tanguy et al, 2016;Xiao et al, 2015). In recent years, researchers began to use this method in studying the mechanical properties of shale formations (Kumar et al, 2012;Mason et al, 2014;Shukla et al, 2013), however, they limited their studies only in measuring Young's modulus and hardness.…”

Section: Introductionmentioning

confidence: 99%

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Liu

Ostadhassan

Bubach

2016

Journal of Natural Gas Science and Engineering

169

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In order to study the mechanical properties of shale samples from Bakken Formation, nanoindentation method, an imaging technique borrowed from other engineering disciplines, was used. Different types of nanoindentation curves were analyzed and the applicability of the nanoindentation theories to study mechanical properties of shale samples at nanoscale was demonstrated. Elastic modulus and Hardness of different samples were calculated, compared and related to their mineral compositions and microstructures which are detected by 2D XRD and FESEM methods, respectively. Results showed that samples with more clay minerals (mainly composed of illite) and larger pore structures have less Young's modulus. In addition, based on the energy analysis method, the fracture toughness at nanoscale was estimated and its relationships with Young's modulus was quantified. It was observed that fracture toughness increases linearly with Young's modulus. This paper presents the results and major findings of this study.

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“…The procedure proposed by Oliver and Pharr [27,28] can be used to deduce the hardness and elastic moduli of various materials, and other indentation-based procedures have been proposed to investigate other mechanical parameters, such as fracture toughness [29,30], fatigue and impact testing [31]. Nowadays, nanoindentation technique is a very powerful method to investigate the mechanical properties of biomaterials [32,33], metals [34], ceramics [35], polymers, and composites [36].…”

Section: Concept Of Nanoindentationmentioning

confidence: 99%

Mechanical and Heterogeneous Properties of Coal and Rock Quantified and Mapped at the Microscale

Sun

Zhang

et al. 2020

Applied Sciences

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Due to the impossibility of obtaining intact standard experimental samples, it is difficult to test the mechanical properties of soft and broken coal and rock obtained from deep coal mines. So, an advanced experimental technology based on a small sample volume, nanoindentation technology, was introduced and used to measure the mechanical parameters of them. By using the averaging method, the hardness of shale, mudstone and coal are 1191.90 MPa, 674.95 MPa and 424.30 MPa, respectively; their elastic moduli are 20.39 GPa, 11.72 GPa and 5.47 GPa; and their fracture toughness were 1.66 MPa·m0.5, 1.28 MPa·m0.5 and 0.77 MPa·m0.5. These three mechanical parameters were used to quantify and map the heterogeneous properties of coal and rock for convenience and accuracy. For example, the inter quartile range (IQR) of the hardness of shale, mudstone, and coal are 1502.10 MPa, 1016.20 MPa and 54.64 MPa, respectively, meaning that coal has the best homogeneity among them. Nanoindentation technology provides researchers with a convenient method to conduct mechanical experiments at the microscale.

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Mechanical properties of intermetallic compounds at the Sn–3.0Ag–0.5Cu/Cu joint interface using nanoindentation

Cited by 50 publications

References 33 publications

Micro-Crack Induced Buckypaper/PI Tape Hybrid Sensors with Enhanced and Tunable Piezo-Resistive Properties

Micro-Crack Induced Buckypaper/PI Tape Hybrid Sensors with Enhanced and Tunable Piezo-Resistive Properties

Applications of nano-indentation methods to estimate nanoscale mechanical properties of shale reservoir rocks

Mechanical and Heterogeneous Properties of Coal and Rock Quantified and Mapped at the Microscale

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