The effect of an electric current on the nanoindentation behavior of tin

Zhao, Guangfeng; Liu, Ming; Yang, Fuqian

doi:10.1016/j.actamat.2012.03.049

Cited by 44 publications

(9 citation statements)

References 27 publications

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“…Regulation and control of these properties by changing the environmental variables have become widely studied topics in materials science. For example, the effects of temperature 7 , electric current 8 , water environment 9 , and interface misfit strain 10 on small-scale mechanical properties have been investigated using the nanoindentation technique. However, only a few studies have reported on the effect of magnetic field on these properties, although much work has been undertaken on the macroscale properties.…”

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confidence: 99%

Magnetic Field Tunable Small-scale Mechanical Properties of Nickel Single Crystals Measured by Nanoindentation Technique

Zhou

Pei

Fang

2014

Sci Rep

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Nano- and micromagnetic materials have been extensively employed in micro-functional devices. However, measuring small-scale mechanical and magnetomechanical properties is challenging, which restricts the design of new products and the performance of smart devices. A new magnetomechanical nanoindentation technique is developed and tested on a nickel single crystal in the absence and presence of a saturated magnetic field. Small-scale parameters such as Young's modulus, indentation hardness, and plastic index are dependent on the applied magnetic field, which differ greatly from their macroscale counterparts. Possible mechanisms that induced 31% increase in modulus and 7% reduction in hardness (i.e., the flexomagnetic effect and the interaction between dislocations and magnetic field, respectively) are analyzed and discussed. Results could be useful in the microminiaturization of applications, such as tunable mechanical resonators and magnetic field sensors.

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mentioning

confidence: 99%

Magnetic Field Tunable Small-scale Mechanical Properties of Nickel Single Crystals Measured by Nanoindentation Technique

Zhou

Pei

Fang

2014

Sci Rep

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“…Zhao et al analyzed the steady-state temperature distribution of the current through the conductor. Assuming that the properties of the material have nothing to do with temperature, we can get the temperature distribution of the metal wire [27].…”

Section: Temperature Field Distribution Of Metal Wirementioning

confidence: 99%

Mechanism of Continuous Melting and Secondary Contact Melting in Resistance Heating Metal Wire Additive Manufacturing

et al. 2020

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Resistance heating metal wire materials additive manufacturing technology is of great significance for space environment maintenance and manufacturing. However, the continuous deposition process has a problem in which the metal melt is disconnected from the base metal. In order to study the difference between the second contact melting of the disconnected metal melt and the continuous melting of the metal wire as well as eliminate the problem of the uneven heat dissipation of the base metal deposition on the melting process of the metal wire, the physical test of melting the metal wire clamped by the equal diameter conductive nozzle was carried out from the aspects of temperature distribution, temperature change, melting time, dynamic resistance change, and the microstructure. The current, wire length, and diameter of the metal wire are used as variables. It was found that the dynamic resistance change of the wire can be matched with the melting state. During the solid-state temperature rise, due to the presence of the contact interface, the continuous melting and secondary contact melting of metal wires differ in dynamic resistance and the melting process. The continuous melting of the metal wire was caused by the overall resistance of the wire to generate heat and melt, and the temperature distribution is “bow-shaped”. In the second contact melting, the heat generated by the contact interface resistance was transferred to both ends of the metal wire to melt, and the temperature distribution is “inverted V”. The microstructure of the metal wire continuous melting and secondary contact melting solidification is similar. The continuous melting length of the metal wire is greater than the melting length of the secondary contact.

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“…Finite-element modeling (FEM) of resistive-nanoindentation is essentially used to provide mechanics-related data that are postprocessed to extract electrical resistance from analytical formulas [40][41][42]. Very few finiteelement analyses of both electrical and mechanical behaviors have been reported [43][44][45].…”

Section: Introductionmentioning

confidence: 99%

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

Volpi

Rusinowicz

Comby-Dassonneville

et al. 2021

Review of Scientific Instruments

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This paper reports the experimental, analytical and numerical study of resistive-nanoindentation tests performed on gold samples (bulk and thin film). First the relevant contributions to electrical contact resistance are discussed and analytically described. A brief comparison of tests performed on gold and on natively-oxidized metals highlights the high reproducibility and the voltage-independence of experiments on gold (thanks to its oxide-free surface). Then the evolution of contact resistance during nanoindentation is fully explained in terms of electronic transport regimes: starting from tunneling, electronic transport is then driven by ballistic conduction before ending with pure diffusive conduction. The corresponding analytical expressions, as well as their validity domains, are determined and compared with experimental data, showing excellent agreement. From there, focus is made on the diffusive regime.Resistive-nanoindentation outputs are fully described by analytical and finite-element modeling. The developed numerical framework allows a better understanding of the main parameters: it first assesses the technique capabilities (validity domains, sensitivity to tip defect, sensitivity to rheology, effect of an oxide layer,…), but it also validates the different assumptions made on current line distribution. Finally it is shown that a simple calibration procedure allows a well-resolved monitoring of contact area during resistive-nanoindentation performed on samples with complex rheologies (ductile thin film on elastic substrate).Comparison to analytical and numerical approaches highlights the strength of resistivenanoindentation for continuous area monitoring.

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The effect of an electric current on the nanoindentation behavior of tin

Cited by 44 publications

References 27 publications

Magnetic Field Tunable Small-scale Mechanical Properties of Nickel Single Crystals Measured by Nanoindentation Technique

Magnetic Field Tunable Small-scale Mechanical Properties of Nickel Single Crystals Measured by Nanoindentation Technique

Mechanism of Continuous Melting and Secondary Contact Melting in Resistance Heating Metal Wire Additive Manufacturing

Resistive-nanoindentation on gold: Experiments and modeling of the electrical contact resistance

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