Characterization of Cu and Ni Nano-Fluids Synthesized by Pulsed Wire Evaporation Method

Kim, Hyo-Seob; Yılmaz, Fikret; Dharmaiah, Peyala; Lee, Dong Hoon; Lee, Tae-Haeng; Hong, Soon‐Jik

doi:10.1515/amm-2017-0141

Cited by 7 publications

(3 citation statements)

References 12 publications

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“…In all the examined cases, the nanofluids containing surfactant have illustrated less agglomeration than the pure Al 2 O 3 /DW nanofluids, with the highest stability being achieved from the SDBS surfactant of 2 : 1 particle to surfactant mass ratio. Kim et al [144] studied the dispersion of one-step fabricated Cu/ethanol, Ni/ethanol, Cu/EG, and Ni/EG nanofluids, of spherical shape and average particles size < 100 nm, by analysing their TEM images. The high magnified images revealed that EG, as a basefluid, had better dispersibility effect on the nanoparticle than ethanol, with Cu/EG nanofluid showing finer particle size and better dispersibility behaviour than the other three cases.…”

Section: Electron Microscopy Methodsmentioning

confidence: 99%

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Ali

Teixeira

Addali

2018

Journal of Nanomaterials

310

178

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Nanofluids have been receiving great attention in recent years due to their potential usage, not only as an enhanced thermophysical heat transfer fluid but also because of their great importance in applications such as drug delivery and oil recovery. Nevertheless, there are some challenges that need to be solved before nanofluids can become commercially acceptable. The main challenges of nanofluids are their stability and operational performance. Nanofluids stability is significantly important in order to maintain their thermophysical properties after fabrication for a long period of time. Therefore, enhancing nanofluids stability and understanding nanofluid behaviour are part of the chain needed to commercialise such type of advanced fluids. In this context, the aim of this article is to summarise the current progress on the study of nanofluids, such as the fabrication procedures, stability evaluation mechanism, stability enhancement procedures, nanofluids thermophysical properties, and current commercialisation challenges. Finally, the article identifies some possible opportunities for future research that can bridge the gap between in-lab research and commercialisation of nanofluids.

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Section: Electron Microscopy Methodsmentioning

confidence: 99%

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Ali

Teixeira

Addali

2018

Journal of Nanomaterials

310

178

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“…Transmission Electron Microscopy (TEM) can be also used [68,76,77], allowing to measure particle size and distribution [68,78]. Additionally, high-resolution TEM allows the evaluation of particle arrangements and surface layers.…”

Section: Stability Evaluationmentioning

confidence: 99%

Fouling Behavior and Dispersion Stability of Nanoparticle-Based Refrigeration Fluid

et al. 2022

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Nanofluids as heat transfer fluids have been acquiring popularity ever since their beginning. Therefore, the refrigeration research could not keep itself away from the ever-rising horizon of nanofluid applications. On the other hand, nanofluid stability remains the critical bottleneck for use. A significant reduction in nanofluids’ performance can derivate from instability phenomena. Looking to industrial applications, nanofluid long-term stability and reusability are crucial requisites. Nanoparticles’ deposits induce microchannel circuit obstruction, limiting the proper functioning of the device and negating the beneficial characteristics of the nanofluid. The aggregation and sedimentation of the particles may also determine the increased viscosity and pumping cost, and reduced thermal properties. So, there is a need to address the features of nanofluid starting from realization, evaluation, stabilization methods, and operational aspects. In this review, investigations of nanorefrigerants are summarized. In particular, a description of the preparation procedures of nanofluids was reported, followed by a deep elucidation of the mechanism of nanofluid destabilization and sedimentation, and finally, the literature results in this field were reviewed.

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“…PWE is a technique of producing Nano-sized powder via evaporation and condensation process. This is achieved through sublimation of a certain length of metal wire by supplying high density electrical energy to the metal wire in a short time (0.0001 s) [23][24][25].…”

Section: Experiments Preparationmentioning

confidence: 99%

Thermal Conductivity Characterization of Thermal Grease Containing Copper Nanopowder

Kang

Kim

et al. 2020

Materials

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As electronic devices and mainboards become smaller, the need for thermal conductive materials having excellent internal heat dissipation is increasing. In this study, nano thermal grease was prepared by mixing in copper nanopowder, which is used as a heat transfer medium in thermal grease, which is a kind of thermal conductive material, with silicon oil. In addition, copper powder was mixed with graphene and alumina, respectively, and the thermal conductivity performance was compared. As a result, the thermal conductivity improved by 4.5 W/m·k over the silicon base, and the upward trend of thermal conductivity increased steadily up to 15 vol. %, and the increasing trend decreased after 20 vol. %. In addition, the increased rate of thermal conductivity from 0 to 5 vol. % and 10 to 15 vol. % was the largest.

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Characterization of Cu and Ni Nano-Fluids Synthesized by Pulsed Wire Evaporation Method

Cited by 7 publications

References 12 publications

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

A Review on Nanofluids: Fabrication, Stability, and Thermophysical Properties

Fouling Behavior and Dispersion Stability of Nanoparticle-Based Refrigeration Fluid

Thermal Conductivity Characterization of Thermal Grease Containing Copper Nanopowder

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