Journal
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
Volume 311, Issue 1, Pages 6-9Publisher
ELSEVIER
DOI: 10.1016/j.jmmm.2006.11.155
Keywords
magnetic fluids; ferrofluid; mono-carboxylic acids; magnetization; small-angle neutron scattering; polarized neutrons
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Short chain length mono-carboxylic acids (lauric and myristic acids) are used to coat magnetite nanoparticles in non-polar organic liquids, which results in highly stable magnetic fluids. The new fluids are compared with classical organic fluids stabilized by oleic acid (OA). Magnetic granulometry and small-angle neutron scattering (polarized mode) reveal a great difference in the particle size distribution function for the studied magnetic fluids, particularly a decrease in the characteristic particle radius of magnetite when lauric and myristic acids are used instead of OA. (C) 2006 Elsevier B.V. All rights reserved.
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