AN EXPERIMENTAL-STUDY OF THE MAGNETIC-SUSCEPTIBILITY OF COLLOIDAL SUSPENSIONS OF MAGNETITE AS A FUNCTION OF PARTICLE-VOLUME FRACTION

被引：7

作者：

FANNIN, PC ^{[1
]}

SCAIFE, BKP ^{[1
]}

CHARLES, SW ^{[1
]}

机构：

[1] UNIV COLL N WALES,DEPT CHEM,BANGOR LL57 2UW,GWYNEDD,WALES

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1990年 / 23卷 / 12期

关键词：

D O I：

10.1088/0022-3727/23/12/034

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Measurements are reported of the complex, frequency-dependent susceptibility taken over a range of frequencies, including zero, and a range of packing fractions from 0.05 to 0.22. An analysis in terms of the Kirkwood theory of dielectric polarization is presented. At low values of packing fraction the Kirkwood correlation factor is equal to unity, leading to the conclusion that Onsager ’s theory of dielectric polarization provides an acceptable account of the dependence on packing fraction of the zero-frequency magnetic susceptibility of low-density magnetic colloids. © 1990 IOP Publishing Ltd.

引用

页码：1711 / 1714

页数：4

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