Investigation of concentration and surfactant quality influence on magnetic particle agglomeration in ferrofluids from static linear dichroism experiments

被引：23

作者：

Socoliuc, V ^{[1
]}

机构：

[1] Natl Inst Res & Dev Electrochem & Condensed Matte, Timisoara 1900, Romania

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 207卷 / 1-3期

关键词：

ferrofluids; agglomeration phenomena; linear dichroism;

D O I：

10.1016/S0304-8853(99)00533-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we report on static linear dichroism of two ferrofluids with ferrite particles stabilized with pure and technical grade oleic acid, respectively, and immersed in transformer oil. A theoretical model for the static linear dichroism was developed in order to account for both magnetic particle orientation and agglomeration processes contributions to the magnetically induced optical anisotropy of ferrofluids. The relative weight of the orientation and agglomeration processes was found to be influenced by the magnetic particle volume fraction and the quality of the surfactant. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：146 / 157

页数：12

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