Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102141
Title: Two-stage kinetics of field-induced aggregation of medium-sized magnetic nanoparticles
Authors: Ezzaier, H.
Alves, Marins, J.
Razvin, I.
Abbas, M.
Ben, Haj, Amara, A.
Zubarev, A.
Kuzhir, P.
Issue Date: 2017
Publisher: American Institute of Physics Inc.
Citation: Two-stage kinetics of field-induced aggregation of medium-sized magnetic nanoparticles / H. Ezzaier, J. Alves Marins, I. Razvin, et al. — DOI 10.1063/1.4977993 // Journal of Chemical Physics. — 2017. — Vol. 146. — Iss. 11. — 114902.
Abstract: The present paper is focused on the theoretical and experimental study of the kinetics of field-induced aggregation of magnetic nanoparticles of a size range of 20-100 nm. Our results demonstrate that (a) in polydisperse suspensions, the largest particles could play a role of the centers of nucleation for smaller particles during the earliest heterogeneous nucleation stage; (b) an intermediate stage of the aggregate growth (due to diffusion and migration of individual nanoparticles towards the aggregates) is weakly influenced by the magnetic field strength, at least at high supersaturation; (c) the stage of direct coalescence of drop-like aggregates (occurring under magnetic attraction between them) plays a dominant role at the intermediate and late stages of the phase separation, with the time scale decreasing as a square of the aggregate magnetization. © 2017 Author(s).
Keywords: AGGREGATES
MAGNETISM
NANOMAGNETICS
NANOPARTICLES
NUCLEATION
PHASE SEPARATION
SUSPENSIONS (FLUIDS)
DIFFUSION AND MIGRATION
DROP-LIKE AGGREGATES
HETEROGENEOUS NUCLEATION
INDIVIDUAL NANOPARTICLES
MAGNETIC ATTRACTION
MAGNETIC FIELD STRENGTHS
MAGNETIC NANO-PARTICLES
POLYDISPERSE SUSPENSION
AGGLOMERATION
URI: http://hdl.handle.net/10995/102141
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85015683442
PURE ID: 1691437
1d61d544-d593-459e-8a18-0778c483b110
ISSN: 219606
DOI: 10.1063/1.4977993
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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