MAGNETIC BIREFRINGENCE OF COBALT FERRITE FERROFLUIDS

被引：44

作者：

NEVEUPRIN, S

TOURINHO, FA

BACRI, JC

PERZYNSKI, R

机构：

[1] UNIV BRASILIA, DEPT QUIM, BRASILIA, DF, BRAZIL

[2] UNIV PARIS 06, CNRS, ACOUST & OPT MAT CONDENSEE LAB, F-75252 PARIS 05, FRANCE

[3] UNIV PARIS 07, F-75251 PARIS 05, FRANCE

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1993年 / 80卷 / 01期

关键词：

COBALT FERRITE; FERROFLUIDS; MAGNETIC BIREFRINGENCE; NANOPARTICLES;

D O I：

10.1016/0927-7757(93)80218-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Properties of chemically synthesized ferrofluids based on nanoparticles of CoFe2O4 are investigated. Their rigid dipole behaviour is established through magnetic birefringence experiments. The dynamical response of such particles to crossed magnetic fields is analysed. In large applied fields, it leads to characteristic relaxation times independent of the mean particle size of the sample, allowing viscosity determination in anisotropic systems.

引用

页码：1 / 10

页数：10

共 38 条

[1] IONIC FERROFLUIDS - A CROSSING OF CHEMISTRY AND PHYSICS
BACRI, JC
PERZYNSKI, R
SALIN, D
CABUIL, V
MASSART, R
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1990, 85 (1-3) : 27 - 32
[2] CRITICAL-BEHAVIOR OF THE ELASTIC-CONSTANT AND THE FRICTION COEFFICIENT IN THE GEL PHASE OF GELATIN
BACRI, JC
GORSE, D
[J]. JOURNAL DE PHYSIQUE, 1983, 44 (08): : 985 - 991
[3] IONIC FERROFLUID - OPTICAL-PROPERTIES
BACRI, JC
CABUIL, V
MASSART, R
PERZYNSKI, R
SALIN, D
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1987, 65 (2-3) : 285 - 288
[4] PHASE-DIAGRAM OF AN IONIC MAGNETIC COLLOID - EXPERIMENTAL-STUDY OF THE EFFECT OF IONIC-STRENGTH
BACRI, JC
PERZYNSKI, R
SALIN, D
CABUIL, V
MASSART, R
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1989, 132 (01) : 43 - 53
[5] FERROFLUID VISCOMETER
BACRI, JC
DUMAS, J
GORSE, D
PERZYNSKI, R
SALIN, D
[J]. JOURNAL DE PHYSIQUE LETTRES, 1985, 46 (24): : 1199 - 1205
[6] BACRI JC, IN PRESS COLLOIDS SU
[7] BACRI JC, IN PRESS HDB UNESCO
[8] BACRI JC, 1993, COMPLEX FLUIDS, P85
[9] BEE A, Patent No. 2662539
[10] CABUIL V, IN PRESSHDB UNESCO 1

← 1 2 3 4 →