Measurement of the extinction coefficients of magnetic fluids

被引：26

作者：

Fang, Xiaopeng ^{[1
]}

Xuan, Yimin ^{[1
]}

Li, Qiang ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Power Engn, Nanjing 210094, Peoples R China

来源：

NANOSCALE RESEARCH LETTERS | 2011年 / 6卷

基金：

中国国家自然科学基金;

关键词：

MAGNETOCHROMATICS; GRATINGS;

D O I：

10.1186/1556-276X-6-237

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A novel spectral transmittance approach for measuring the extinction coefficient of magnetic fluids is proposed. The measuring principle and accuracy of the approach are analysed. Experiments are conducted to measure the extinction coefficient of magnetic fluids with different particle volume fractions. The relative uncertainty of experimental data is less than 1.8%. The experimental results indicate that the extinction coefficient of magnetic fluids increases with increase of the volume fraction of suspended magnetic nanoparticles and the optical properties of the particle material have a significant effect on the extinction coefficient of the magnetic fluids.

引用

页数：5

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