Research Center for Engineering of
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Title: Physical properties of magnetic fluids and nanoparticles from magnetic and magneto-rheological properties
Published In: Journal of Colloids and Interface Science, Vol. 231, pp. 247-254
Description: Static magnetization curves and the magnetorheological effect were used to study the microstructural properties (agglomerate formation) of magneticfluids and the properties of dispersed nanoparticles. Improved techniques for magnetogranulometry analysis and a formula for the magnetoviscous effect were proposed. The area of applicability of some existing models was studied. The density, distribution, and dimension of particles, as well as the thickness of the nonmagnetic layer were accurately determined from magnetic measurements. The Shliomis diameter and the effective anisotropy constant were determined from rheological and magnetorheological measurements using information obtained from magnetization curves.
ISSN:ISSN: 0021-9797
DOI:DOI: 10.1006/jcis.2000.7123
Publication year: 2000
Keywords:magnetic fluids, nanoparticles, magnetization, magnetorheology
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Authors: VEKAS Ladislau , RASA Mircea , BICA Doina ,
Type: International Journal Article
Laboratory: Rheology Laboratory
Institution: ARFT