Field induced anisotropic thermal conductivity of silver nanowire dispersed-magnetic functional fluid

Iwamoto, Yuhiro; Yoshioka, Atsushi; Naito, T.; Cuya, Jhon; Ido, Yasushi; Okawa, Ryo; Jeyadevan, Balachandran; Yamaguchi, Hiroshi

doi:10.1016/j.expthermflusci.2016.07.005

Cited by 26 publications

(9 citation statements)

References 19 publications

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“…Consequently, the non-magnetic material starts rotating and finally orients to the applied magnetic field direction. Actually, this rotational behavior has been observed in our previous experimental observation using a dark field microscopy [16]. If two non-magnetic materials are dispersed in the magnetized magnetic fluid, these materials magnetically interact with each other and show the mobility.…”

Section: Magnetic Behavior Of Non-magnetic Materials Dispersed In Magsupporting

confidence: 68%

“…(11)), the contact time between two Cu spherical particles dispersed in the magnetized magnetic fluid was analyzed. It should be noted that the Ag nanowires, which were employed in our previous work [16], are incredibly tiny with the diameter of about 70 nm. Because of the small diameter, it is impossible to visualize and observe the dynamic behavior of Ag nanowires using a microscope.…”

Section: Dynamic Behavior Of Two Cu Spherical Particles Dispersed In mentioning

confidence: 95%

“…The details of the customized microscope are described in Ref. [16]. In the analysis of their dynamic behavior, the equation of motion, Eq.…”

Section: Dynamic Behavior Of Two Cu Spherical Particles Dispersed In mentioning

confidence: 99%

“…When metal nanowires form cross-linked structures in a carrier liquid, it has been known that the thermal conductivity is significantly enhanced up to 1,350 % [15]. The authors [16]�has proposed an Ag nanowire-dispersed magnetic fluid (Ag NWD-MF), in which Ag nanowires are stably dispersed in the magnetic fluid. The authors found that the Ag nanowires orients to the applied magnetic field direction, and the thermal conductivity is enhanced [16].…”

Section: Introductionmentioning

confidence: 99%

“…The authors [16]�has proposed an Ag nanowire-dispersed magnetic fluid (Ag NWD-MF), in which Ag nanowires are stably dispersed in the magnetic fluid. The authors found that the Ag nanowires orients to the applied magnetic field direction, and the thermal conductivity is enhanced [16]. This phenomenon may be associated with the apparent magnetization of non-magnetic materials.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic Behavior of Two Ag Nanowires Dispersed in Magnetic Fluid

Iwamoto

Yoshioka

Ido

et al. 2019

Journal of the Japan Society of Applied Electromagnetics and Me

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Nanofluids have attracted much attention in the field of heat transfer because of their exceptional heat transfer ability. The authors have proposed a silver nanowire-dispersed magnetic nanofluid. Interestingly, its thermal conductivity is tunable by the direction of the applied magnetic field, because the dispersed Ag nanowires orient to the field direction. But the dynamic behavior of Ag nanowires is not well understood. In the present study, the translation process of the neighboring two Ag nanowires was theoretically analyzed. When the Ag nanowires are dispersed in the magnetic fluid and exposed to the magnetic field, the Ag nanowires apparently behave as a diamagnetic material because the surface of the Ag nanowires is magnetically charged. With assuming that single magnetic moment places at the center of Ag nanowires, the magnetic dipole interaction force, which is the attraction force, acts on the Ag nanowires, and the wires contact each other with taking a long time.

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Section: Magnetic Behavior Of Non-magnetic Materials Dispersed In Magsupporting

confidence: 68%

Section: Dynamic Behavior Of Two Cu Spherical Particles Dispersed In mentioning

confidence: 95%

“…The details of the customized microscope are described in Ref. [16]. In the analysis of their dynamic behavior, the equation of motion, Eq.…”

Section: Dynamic Behavior Of Two Cu Spherical Particles Dispersed In mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dynamic Behavior of Two Ag Nanowires Dispersed in Magnetic Fluid

Iwamoto

Yoshioka

Ido

et al. 2019

Journal of the Japan Society of Applied Electromagnetics and Me

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Experimental investigation of thermal conductivity behavior of MWCNTS-Al2O3/ethylene glycol hybrid Nanofluid: providing new thermal conductivity correlation

Arani

Pourmoghadam

2019

Heat Mass Transfer

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Effects of the nitrogen doping configuration and site on the thermal conductivity of defective armchair graphene nanoribbons

2017

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The influence of the nitrogen (N) doping configuration on the thermal conductivity (TC) of armchair graphene nanoribbons (AGNRs) of size 15.7 nm × 7.26 nm was investigated using classical molecular dynamics (MD) simulations with the optimized Tersoff potential at room temperature. The effect of changing the N-doping site in defects on the TC of AGNRs was also investigated in detail. The variations with N concentration of the TCs of AGNRs presenting graphitic N (quarternary N), pyridinic N, and pyrrolic N doping configurations were studied. Results of MD simulations showed that, among these three doping configurations, pyridinic N was associated with the highest TC, and pyrrolic N with the lowest TC. The highest TC values were obtained when the N dopant atoms were located at the edges and at defects in the AGNR. The presence of both pyrrolic N and Stone-Wales type 1 (SW-1) defects led to a higher TC than the presence of both pyrrolic N and SW-2 defects. Phonon-defect scattering was found to be influenced by changes in C-C bond orientation. SW-1 defects were found to exert a greater influence on the TC than graphitic N doping. Furthermore, the influence on the TC of the N-doping site location in SW-1 defects was examined. Doping the central sites of SW-1 defects was found to yield higher TC values than doping the edge sites of defects. Graphitic-N doping of the more central sites in a SW-1 defect led to a higher TC than the random graphitic-N doping of sites in a SW-1 defect.

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Field induced anisotropic thermal conductivity of silver nanowire dispersed-magnetic functional fluid

Cited by 26 publications

References 19 publications

Dynamic Behavior of Two Ag Nanowires Dispersed in Magnetic Fluid

Dynamic Behavior of Two Ag Nanowires Dispersed in Magnetic Fluid

Experimental investigation of thermal conductivity behavior of MWCNTS-Al2O3/ethylene glycol hybrid Nanofluid: providing new thermal conductivity correlation

Effects of the nitrogen doping configuration and site on the thermal conductivity of defective armchair graphene nanoribbons

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