MAGNETOVISCOSITY OF MAGNETIC COLLOIDS

被引：333
作者：
MCTAGUE, JP
机构：
[1] Science Center, North American Rockwell Corporation, Thousand Oaks
来源：
JOURNAL OF CHEMICAL PHYSICS | 1969年 / 51卷 / 01期
关键词：
D O I：
10.1063/1.1671697
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：
We have observed that the viscosity of a dilute (~1015 particles cm -3) colloidal suspension of single domain ferromagnetic particles is a marked function of both the magnitude and direction of an externally applied magnetic field. For particles with dimensions of a few hundred angstroms, the viscosity saturates in a field of order 1 kG. The additional viscosity is greater by a factor of 2 for the field parallel to the flow than with it perpendicular. This magnetoviscous effect is qualitatively accounted for by the hindrance to particle rotation caused by the magnetic torque.
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页码：133 / &
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