Ferrofluid - Wikipedia
Ferrofluid is a liquid that is attracted to the poles of a magnet. It is a colloidal liquid made of nanoscale ferromagnetic or ferrimagnetic particles suspended in a carrier fluid (usually an organic solvent or water). [1] Each magnetic particle is thoroughly coated with a surfactant to inhibit clumping. Large ferromagnetic particles can be ...
Reconfigurable ferromagnetic liquid droplets | Science - AAAS
2019年7月19日 · These ferromagnetic liquid droplets exhibit a finite coercivity and remanent magnetization. They can be easily reconfigured into different shapes while preserving the magnetic properties of solid ferromagnets with classic north-south dipole interactions.
Chapter 8 Ferromagnetic liquids - ScienceDirect
1980年1月1日 · This chapter discusses essential parameters in the preparation of ferromagnetic liquids, its methods of preparation, magnetic properties, and ferrohydrodynamics.
北京化工大学今日Science: 可重构的铁磁液滴 - 材料牛
2019年7月19日 · 在这里，作者们展示了一种简单的方法通过MNP-表面活性剂的原位形成和界面堵塞来实现可逆顺磁-铁磁转变。 作者们将羧化直径为22-nm的（Fe 3 O 4 -CO 2 H）MNP的水分散体浸入胺改性的多面体低聚倍半硅氧烷（POSS-NH 2）在甲苯中的溶液中。 POSS-NH 2 本身是表面活性剂，在界面处组装并与MNP静电相互作用，将明确数量的POSS-NH 2 锚定到MNP，将MNP转化为MNP-表面活性剂。 当液滴形状改变时，界面面积增加，并且在界面处形成并组装 …
Liquid-metal-based magnetic fluids - Nature Reviews Materials
2024年5月15日 · Magnetic fluids, suspensions of magnetic particles in carrier liquids like water, oil or organic solvents, combine magnetic properties with fluidity to achieve features such as rapid magnetic...
Approaches on Ferrofluid Synthesis and Applications: Current …
2022年1月21日 · Ferrofluids are colloidal suspensions of iron oxide nanoparticles (IONPs) within aqueous or nonaqueous liquids that exhibit strong magnetic properties. These magnetic properties allow ferrofluids to be manipulated and controlled when exposed to magnetic fields.
Ferromagnetic liquid droplets with adjustable magnetic properties
The assembly and jamming of magnetic nanoparticles (NPs) at liquid–liquid interfaces is a versatile platform to endow structured liquid droplets with a magnetization, i.e., producing ferromagnetic liquid droplets (FMLDs).
Perspective: Ferromagnetic Liquids - MDPI
2020年6月15日 · Ferromagnetic liquids obtain their physical and magnetic properties, including a remanent magnetization that distinguishes them from ferrofluids, from the jamming of magnetic nanoparticles assembled at the interface between two distinct liquids to minimize surface tension.
(PDF) Perspective: Ferromagnetic Liquids - ResearchGate
2020年6月15日 · Ferromagnetic liquids obtain their physical and magnetic properties, including a remanent magnetization that distinguishes them from ferrofluids, from the jamming of magnetic nanoparticles...
Ferromagnetic liquids - Their magnetic properties and …
Abstract: Ferromagnetic liquids are here defined as colloidal suspensions of single domain particles with diameters between 40-200 Å. The magnetic properties are best described as superparamagnetic and the classical theory of Langevin paramagnetism, modified to include a particle size distribution, applies to these systems.