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Small-angle neutron scattering contrast variation on magnetite-myristic acid-benzene magnetic fluid |
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| Authors: | A V Feoktystov M V Avdeev V L Aksenov L A Bulavin D Bica L Vekas V M Garamus R Willumeit |
| Institution: | 1. Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, ul. Zholio Kyuri 6, Dubna, Moscow oblast, 141980, Russia 2. Physics Department, National Taras Shevchenko University of Kyiv, Vladimirskaya ul. 64, Kiev, 01033, Ukraine 3. Russian Research Centre “Kurchatov Institute”, pl. Akademika Kurchatova 1, Moscow, 123182, Russia 4. Center for Fundamental and Advanced Technical Research, Romanian Academy, Timisoara Division, bd. Mihai Viteazul 24, Timisoara, 300223, Romania 5. GKSS Research Centre, Max-Planck str. 1, Geesthacht, 21502, Germany |
| Abstract: | A magnetic fluid with magnetite dispersed in D-benzene and stabilized by myristic acid is investigated using the contrast variation technique in small-angle neutron scattering. The results obtained are interpreted within a new approach to the basic functions for polydisperse multicomponent and superparamagnetic systems. Myristic acid is considered an alternative to oleic acid, which is commonly used in these fluids. The parameters characterizing the particle size distribution function and the thickness of the myristic acid layer are determined. The data obtained are in good agreement with the results derived from previous investigations with the use of polarized neutrons. |
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