Microstructure of magnetite doped elastomers investigated by SAXS and SANS

We present some recent results on the SAXS and SANS investigations of the magnetic elastomers. Samples were obtained by mixing dimethylsiloxane with Fe304 ferrofluid in a magnetic field and characterized by XRD, SANS and SAXS. The XRD data corresponding to magnetite was fitted by using a Pseudo-Voig...

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Bibliographic Details
Published in:Journal of Optoelectronics and Advanced Materials 2008-11, Vol.10 (11), p.2932-2935
Main Authors: Balasoiu, M, Craus, M L, Kuklin, A I, Plestil, J, Haramus, V, Islamov, A H, Erhan, R, Anitas, E M, Lozovan, M, Tripadus, V, Petrescu, C, Savu, D, Savu, S, Bica, I
Format: Article
Language:English
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Summary:We present some recent results on the SAXS and SANS investigations of the magnetic elastomers. Samples were obtained by mixing dimethylsiloxane with Fe304 ferrofluid in a magnetic field and characterized by XRD, SANS and SAXS. The XRD data corresponding to magnetite was fitted by using a Pseudo-Voigt function. It was found that the Fe304 particles lead to a significant change of the local structure of elastomer, meaning the decrease of the quasi-crystalline phase and the micro-strains into the matrix. The average particle size obtained from SANS measurements agrees well with the average particle size determined by XRD and SAXS analysis. The splitting of the SANS intensity owing to an additional scattering in zero field reflects the existence of magnetic correlations inside the Q region of 0.005 XI < Q < 0.02 A-1.
ISSN:1454-4164