Journal ArticleDOI
Magnetic Properties of Stable Dispersions of Subdomain Magnetite Particles
Robert Kaiser,G. Miskolczy +1 more
TLDR
In this article, stable colloidal dispersions of subdomain-size magnetic particles have been prepared that retain their liquid characteristics in the presence of a magnetic field, correcting for the formation of a nonmagnetic surface mantle one unit cell thick.Abstract:
Stable colloidal dispersions of subdomain‐size magnetic particles have been prepared that retain their liquid characteristics in the presence of a magnetic field. Magnetization versus applied field curves were obtained as a function of particle size and volumetric solids concentration for magnetite dispersions in a wide variety of carrier liquids. The magnetic properties of these colloidal dispersions have been corrolated by superparamagnetic theory in terms of the size distribution of the suspended particles and their volumetric concentration, correcting for the formation of a nonmagnetic surface mantle one‐unit‐cell thick.read more
Citations
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Journal ArticleDOI
Magnetic Iron Oxide Nanoparticles: Synthesis, Stabilization, Vectorization, Physicochemical Characterizations, and Biological Applications
Sophie Laurent,Delphine Forge,Marc Port,Alain Roch,Caroline Robic,Luce Vander Elst,Robert N. Muller +6 more
TL;DR: Practical Interests of Magnetic NuclearRelaxation for the Characterization of Superparamagnetic Colloid, and Use of Nanoparticles as Contrast Agents forMRI20825.
Journal ArticleDOI
Preparation of aqueous magnetic liquids in alkaline and acidic media
TL;DR: In this article, the results of work on the preparation of aqueous magnetic liquids without using organic stabilizing agents are presented, and the results are compared to those of the same authors.
Journal ArticleDOI
Synthesis and characterization of surfactant-coated superparamagnetic monodispersed iron oxide nanoparticles
TL;DR: In this article, the synthesis and coating of superparamagnetic monodispersed iron oxide nanoparticles was carried out by chemical solution method and controlled co-precipitation technique was used to prevent undesirable critical oxidation of Fe.
Journal ArticleDOI
Measurements of particle size distribution parameters in ferrofluids
TL;DR: In this article, a method is presented by means of which (for a ferrofluid with a lognormal distribution of particle size) it is possible to determine the standard deviation and median particle diameter (D v ) from the room temperature magnetisation curve.
Journal ArticleDOI
Synthesis of iron oxide nanoparticles under oxidizing environment and their stabilization in aqueous and non-aqueous media
Dipak Maity,D.C. Agrawal +1 more
TL;DR: In this paper, the particles have been suspended in non-aqueous and aqueous media by coating the particles with a single layer and a bilayer of oleic acid, respectively.
References
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Journal ArticleDOI
Standard X‐Ray Diffraction Powder Patterns
TL;DR: Forty-six standard x ray diffraction powder patterns were presented in this article, fourteen of which are to repace twelve patterns already given in the x ray Powder Data File, and thirty-four are for substances not previously included.
Journal ArticleDOI
The interfacial stability of a ferromagnetic fluid
M. D. Cowley,R. E. Rosensweig +1 more
TL;DR: Magnetization critical level derived for instability onset for ferromagnetic fluid having nonlinear relation with magnetic induction for magnetic induction was derived in this paper, where the critical level is defined as the ratio of instability onset to magnetic induction.
Journal ArticleDOI
Magnetoviscosity of Magnetic Colloids
TL;DR: In this paper, the viscosity of a colloidal suspension of single domain ferromagnetic particles is observed to be a marked function of both the magnitude and direction of an externally applied magnetic field.
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