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dc.contributor.author
Contreras Mateus, M. Daniela
dc.contributor.author
Chaves Guerrero, Arlex
dc.contributor.author
Nassar, Nashaat N.
dc.contributor.author
Sanchez, Francisco Homero
dc.date.available
2024-09-05T14:00:54Z
dc.date.issued
2024-04
dc.identifier.citation
Contreras Mateus, M. Daniela; Chaves Guerrero, Arlex; Nassar, Nashaat N.; Sanchez, Francisco Homero; Exploring induced microstructural changes in magnetically modified crude oils through nonlinear rheology and magnetometry; American Institute of Physics; Physics of Fluids; 36; 4; 4-2024; 043115, 1-21
dc.identifier.issn
1070-6631
dc.identifier.uri
http://hdl.handle.net/11336/243664
dc.description.abstract
Adsorptive phenomena involving dispersed iron oxide superparamagnetic nanoparticles and asphaltenes in crude oil have been profiled as promising technological alternatives, particularly since these interactions can induce significant structural changes within the oil matrices, effectively inhibiting the formation of complex long-range viscoelastic structures. Furthermore, the effect of adsorbed asphaltenes on magnetic dipolar interactions among particles has been proven, showing the formation of multiple asphaltene layers that stimulate a steric repulsive barrier. Despite the discussed hindering phenomena, this research demonstrated the effectiveness of the sequence of physical processes framework to provide intra-cycle structure-rheological interpretations in large amplitude oscillatory shear of a ferrofluid-modified heavy oil, upon the application of an external magnetic field. The analysis proved that disordered nanoparticle/asphaltene aggregates are highly extended and naturally formed in the absence of magnetic forces. In contrast, in the presence of a perpendicular field applied by a controlled rate magneto-rheometer, the formation of interacting structural aggregates of several hundred nanometers was observed, analogous to magnetorheological fluids. These results were validated by adjusting a phenomenological model that effectively represented the intricate processes involved in the formation and reorientation of aggregates, based on the experimental data acquired from zero-field-cooled and field-cooled magnetization curves. This revealed a distinct blocking temperature distribution at around 274 K, which was linked to Brownian relaxation phenomena exhibited by nanoparticle aggregates. In this regard, this research provided a precise extended description of the effect of magnetic fields on the microstructural organization of complex fluids using nonlinear rheology and magnetometry.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Institute of Physics
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
long-range viscoelastic structures
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magnetic dipolar interactions
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formation and reorientation of NP aggregates
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aggregates Brownian relaxation
dc.subject.classification
Física de los Materiales Condensados
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Exploring induced microstructural changes in magnetically modified crude oils through nonlinear rheology and magnetometry
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2024-08-19T15:08:21Z
dc.journal.volume
36
dc.journal.number
4
dc.journal.pagination
043115, 1-21
dc.journal.pais
Estados Unidos
dc.journal.ciudad
New York
dc.description.fil
Fil: Contreras Mateus, M. Daniela. Universidad Industrial Santander; Colombia
dc.description.fil
Fil: Chaves Guerrero, Arlex. Universidad Industrial Santander; Colombia
dc.description.fil
Fil: Nassar, Nashaat N.. University of Calgary; Canadá
dc.description.fil
Fil: Sanchez, Francisco Homero. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
dc.journal.title
Physics of Fluids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.aip.org/pof/article/36/4/043115/3284386/Exploring-induced-microstructural-changes-in
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1063/5.0205277
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