Study of Fe3O4 Nano-Magnetic Ferrofluid by Atomic Force Microscope

Liu, A. P.; Li, X.; Duan, L. H.; Qin, Guoping; Guo, Hengyu

doi:10.1007/s10948-010-0740-x

Cited by 8 publications

(3 citation statements)

References 3 publications

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Section: Technological Applicationsmentioning

confidence: 99%

“…[306b] The microstructure characterization of FFs using the atomic force microscopy (AFM) technique is also reported (Figure 23). [307] Here, the nano-FF has been made into thin-film samples before extracting information about the particle size and morphology. The technique of optical microscopy, because of the resolution limit, is not successful for observing FF grains as mentioned before.…”

Section: Characterization Techniquesmentioning

confidence: 99%

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Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Joseph

Mathew

2014

ChemPlusChem

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Ferrofluids (FFs) or magnetic nanofluids are incredible smart materials consisting of ultrafine magnetic nanoparticles suspended in a liquid carrier medium, which exhibit both fluidity and magnetic controllability. Studies involving the dynamics and physicochemical properties of these magnetic nanofluids are an interdisciplinary area of research attracting researchers from different fields of science and technology. Herein, a comprehensive Review on the different aspects of FF research is presented. First, the synthesis and stabilization of various types of FFs are discussed followed by their physicochemical features such as polydispersity, magnetic behavior, dipolar interactions, formation of chainlike aggregates, and long‐range ordering. The Review also details the rheological and thermal properties, dynamic instabilities, phase behavior, and particle assemblies in FFs to form complex multipolar geometries, photonic nanostructures, labyrinth structures, thin films, and droplets. Many important characterization techniques for probing FF properties are also briefly discussed, and the numerous innovative applications and future prospects of FFs are outlined.

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Section: Technological Applicationsmentioning

confidence: 99%

Section: Characterization Techniquesmentioning

confidence: 99%

Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Joseph

Mathew

2014

ChemPlusChem

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“…The piezoelectric cantilever is used in scanning probe microscopy (SPM), which not only can detect small forces, but also can detect such as temperature, field strength, mass, density and viscosity and other physical quantities, expanding the SPM's applications. [1][2][3][4] Piezoelectric microcantilever device has the excellent piezoelectric material, besides its ingenious microstructure size is the important guarantee of the nanometer resolution capability. [5][6][7][8] In this paper, a microcantilever device is designed for the IPC-208B type SPM, and we analyze the structure size's effect on the piezoelectric cantilever device, to provide the basis for improving the device performance.…”

Section: Introductionmentioning

confidence: 99%

Structure Size's Effect on the Performance of the SPM Piezoelectric Microcantilever

2013

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For the piezoelectric microcantilever, a device is designed for the IPC-208B type scanning probe microscope. We analyzed the structure size's effect on the piezoelectric cantilever device, and find that the deformation displacement of the cantilever tip depends mainly on the length, while the output voltage of piezoelectric layer depends on the aspect ratio of cantilever itself. We choose the device structure as the length and width dimensions of 200 µm × 40 µm, piezoelectric thickness of 2.0 µm, and electrode layer of 0.2 µm for the experimental analysis. We conclude that the device voltage sensitivity is 0.43 mV/nN, and tip displacement sensitivity up to 4.6 nm/nN, which shows that the output voltage is in the mV-level, is easy to meet the input requirements of testing circuit. The differentiable range can be in nanometer scale, which meets the SPM work requirements, and the device performance is considerable.

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Magnetics of Liquid Metal

Xing,

2023

Handbook of Liquid Metals

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Study of Fe3O4 Nano-Magnetic Ferrofluid by Atomic Force Microscope

Cited by 8 publications

References 3 publications

Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Ferrofluids: Synthetic Strategies, Stabilization, Physicochemical Features, Characterization, and Applications

Structure Size's Effect on the Performance of the SPM Piezoelectric Microcantilever

Magnetics of Liquid Metal

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