Chain aggregate structure and magnetic birefringence in polydisperse ferrofluids / Ivanov AO,Kantorovich SS // PHYSICAL REVIEW E. - 2004. - V. 70, l. 2, 1.

ISSN/EISSN:

1539-3755 / нет данных

Type:

Article

Abstract:

The theory of particle association in chains in dilute ferrofluids and dipole fluids is generalized to the case of polydisperse systems. The chains could be formed by ferroparticles of different sizes, so various types of chain aggregates are considered. The probabilities of chain structure appearance are calculated, and the phase diagram, allowing to find the most probable structure with only the continuous particle size distribution known, is built. Our results demonstrate that in spite of a very weak dipole-dipole interaction between the small size fraction particles, their presence exerts a decisive influence on the ferrofluid microstructure. The chain shortening caused by the small particles sticking to the edges of chains formed by large particles is discovered theoretically. The latter effect is proved to exist by the recent computer simulations on bidisperse ferrofluid makeup. The application of the developed model to the description of magnetic birefringence phenomena in weak external magnetic fields shows a very good agreement with experimental data.

Author keywords:

STRONGLY DIPOLAR FLUIDS; MONTE-CARLO; RHEOLOGICAL PROPERTIES; COLLOIDAL DISPERSIONS; NUMERICAL-SIMULATION; LOW-DENSITIES; HARD-SPHERES; PHASE; FIELD; PARTICLES

DOI:

10.1103/PhysRevE.70.021401

Web of Science ID:

ISI:000223784400017

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	021401
Keywords-Plus	STRONGLY DIPOLAR FLUIDS; MONTE-CARLO; RHEOLOGICAL PROPERTIES; COLLOIDAL DISPERSIONS; NUMERICAL-SIMULATION; LOW-DENSITIES; HARD-SPHERES; PHASE; FIELD; PARTICLES
Research-Areas	Physics
Web-of-Science-Categories	Physics, Fluids \& Plasmas; Physics, Mathematical
Author-Email	alexey.ivanov@usu.ru sue.kantorovich@usu.ru
ResearcherID-Numbers	Kantorovich, Sofia/H-4586-2011 Ivanov, Alexey/E-4442-2011
ORCID-Numbers	Kantorovich, Sofia/0000-0001-5700-7009 Ivanov, Alexey/0000-0001-8239-4039
Number-of-Cited-References	47
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	15
Journal-ISO	Phys. Rev. E
Doc-Delivery-Number	852VH