Microcapillary flow behavior of magnetic nanofluids in the presence of plate shaped bentonite particles

Parmar, Mayur; Virpura, Hiral; Patel, Rajesh

doi:10.1016/j.jmmm.2012.11.027

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…As for applying a magnetic field, the magnetic particles experienced dipolar interactions and aligned along the direction of the magnetic field to form chains. The magnetic moment of particles forms a torque that hampers the rotational motion of the particles and makes an extra frictional effect between the particles and the liquid metal, inducing more viscous dissipation . The interactions between magnetic particles and the chain structure in the suspension are reinforced on increasing the magnetic field.…”

Section: Resultsmentioning

confidence: 99%

“…The magnetic moment of particles forms a torque that hampers the rotational motion of the particles and makes an extra frictional effect between the particles and the liquid metal, inducing more viscous dissipation. 39 The interactions between magnetic particles and the chain structure in the suspension are reinforced on increasing the magnetic field. Hence, the viscosity of the LMMS increases when enhancing the magnetic field.…”

Section: Alloyingmentioning

confidence: 99%

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Mussel-Inspired Multifunctional Integrated Liquid Metal-Based Magnetic Suspensions with Rheological, Magnetic, Electrical, and Thermal Reinforcement

Che

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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Magnetic liquid metal is regarded as a promising material due to its integration of fluidic, metallic, and magnetic properties simultaneously. Previously, few methods of fabricating magnetic liquid metal have been proposed. However, either the alloying reaction inside the matrix or the poor performance in electrical and thermal conduction is troublesome in practical applications. Here, inspired by the mussel in nature, polydopamine is introduced to in situ reduce and immobilize silver shells on the surface of iron particles, and then the modified particles mix with liquid metal to prepare liquid metal-based magnetic suspensions (LMMSs). The silver shells can prevent iron particles from alloying with liquid metal and enhance the electrical and thermal conductivities of the LMMS concurrently. Besides, the LMMS thus obtained can keep its magnetism intact for a long period, at least during the 60 days of the test. Compared to directly mixing bare iron particles with liquid metal, the maximum electrical conductivities increase by at least 13.69% and the thermal conductivities increase by almost 4 times in the LMMS. The LMMS also exhibits potential applications in patterning and magnetic manipulation. This work puts forward a new strategy for preparing a LMMS with appealing properties and its broad applications are expected in the future.

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Section: Resultsmentioning

confidence: 99%

Section: Alloyingmentioning

confidence: 99%