Limits...
Measurement of the extinction coefficients of magnetic fluids.

Fang X, Xuan Y, Li Q - Nanoscale Res Lett (2011)

Bottom Line: The measuring principle and accuracy of the approach are analysed.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Power Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China. ymxuan@mail.njust.edu.cn.

ABSTRACT
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.

No MeSH data available.


Refractive index n and extinction coefficient k of Fe3O4.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3211297&req=5

Figure 7: Refractive index n and extinction coefficient k of Fe3O4.

Mentions: The dielectric function of Fe3O4 can be obtained from the research of Schlegel [19]. Using Equations 15 and 16, the refractive index and extinction coefficient of Fe3O4 were calculated, and the results are shown in Figure 7.


Measurement of the extinction coefficients of magnetic fluids.

Fang X, Xuan Y, Li Q - Nanoscale Res Lett (2011)

Refractive index n and extinction coefficient k of Fe3O4.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3211297&req=5

Figure 7: Refractive index n and extinction coefficient k of Fe3O4.
Mentions: The dielectric function of Fe3O4 can be obtained from the research of Schlegel [19]. Using Equations 15 and 16, the refractive index and extinction coefficient of Fe3O4 were calculated, and the results are shown in Figure 7.

Bottom Line: The measuring principle and accuracy of the approach are analysed.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.

View Article: PubMed Central - HTML - PubMed

Affiliation: School of Power Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China. ymxuan@mail.njust.edu.cn.

ABSTRACT
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.

No MeSH data available.