"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Synthesis method influence on water based magnetic fluid properties

M. RĂCUCIU1, D. E. CREANGĂ2, A. AIRINEI3, V. BĂDESCU4

Affiliation

  1. “Lucian Blaga”University, Faculty of Sciences, Dr.Ratiu Street, No.5-7, Sibiu, 550024, Romania
  2. “Al. I. Cuza” University, Faculty of Physics, 11A Blvd.Copou, 700506, Iasi, Romania
  3. "P. Poni" Institute of Macromolecular Chemistry Iasi, Romania
  4. National Institute of R&D for Technical Physics, 47 Blvd. D. Mangeron, Iasi, Romania

Abstract

Water based magnetic fluids containing magnetite have been prepared by a chemical precipitation method. Two samples of tetramethylammonium hydroxide coated magnetic nanoparticles (ultra-fine particles of Fe3O4) immersed in water have been obtained following two different preparation protocols. Physical tests have been performed on these samples of the water based magnetic fluids prepared by us, in order to reveal their microstructural and rheological features. Transmission electron microscopy (TEM) was the investigation method for the assessing of the physical magnetic nanoparticles size. Magnetic susceptibility and magnetization measurements were carried out by Gouy method. Fourier transform infrared absorption spectra have been recorded aiming to get some information on the solid phase structure. The dimensional distribution of the ferrophase physical diameter was comparatively presented using the box-plot statistical method. To assess the optical properties of isolated magnetic nanoparticles, UV-VIS absorbance spectra were recorded..

Keywords

Magnetic fluid synthesis, TEM analysis, Magnetization measurements, Rheological properties, FT-IR spectra.

Submitted at: Sept. 25, 2007
Accepted at: March 17, 2008

Citation

M. RĂCUCIU, D. E. CREANGĂ, A. AIRINEI, V. BĂDESCU, Synthesis method influence on water based magnetic fluid properties, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 3, pp. 635-638 (2008)