M. Spuch-calvar, J. Pérez-juste, and L. M. Liz-marzán, Hematite spindles with optical functionalities: Growth of gold nanoshells and assembly of gold nanorods, Journal of Colloid and Interface Science, vol.310, issue.1, pp.297-301, 2007.
DOI : 10.1016/j.jcis.2007.01.061

Y. Xu, S. Yang, G. Zhang, Y. Sun, D. Gao et al., Uniform hematite ??-Fe2O3 nanoparticles: Morphology, size-controlled hydrothermal synthesis and formation mechanism, Materials Letters, vol.65, issue.12, pp.1911-1914, 2011.
DOI : 10.1016/j.matlet.2011.03.085

M. Tadic, N. Citakovic, M. Panjan, B. Stanojevic, D. Markovic et al., Synthesis, morphology and microstructure of pomegranate-like hematite (??-Fe2O3) superstructure with high coercivity, Journal of Alloys and Compounds, vol.543, issue.5, pp.118-124, 2012.
DOI : 10.1016/j.jallcom.2012.07.047

G. Park, D. Shindo, Y. Waseda, and T. Sugimoto, Internal Structure Analysis of Monodispersed Pseudocubic Hematite Particles by Electron Microscopy, Journal of Colloid and Interface Science, vol.177, issue.1, pp.198-207, 1996.
DOI : 10.1006/jcis.1996.0021

S. Manickavasagam, C. Saltiel, and H. Giesche, Characterization of colloidal hematite particle shape and dispersion behavior, Journal of Colloid and Interface Science, vol.280, issue.2, pp.417-430, 2004.
DOI : 10.1016/j.jcis.2004.08.031

X. Huang, J. Guan, Z. Xiao, G. Tong, F. Mou et al., Flower-like porous hematite nanoarchitectures achieved by complexation???mediated oxidation???hydrolysis reaction, Journal of Colloid and Interface Science, vol.357, issue.1, pp.36-45, 2007.
DOI : 10.1016/j.jcis.2011.02.001

A. Jean, D. Jeulin, S. Forest, S. Cantournet, and F. N-'guyen, A multiscale microstructure model of carbon black distribution in rubber, Journal of Microscopy, vol.49, issue.21, pp.243-260, 2011.
DOI : 10.1111/j.1365-2818.2010.03428.x

URL : https://hal.archives-ouvertes.fr/hal-00585338

D. F. Azzimonti, F. Willot, and D. Jeulin, Optical properties of deposit models for paints: full-fields FFT computations and representative volume element, Journal of Modern Optics, vol.32, issue.7, pp.1-10, 2013.
DOI : 10.1017/CBO9780511613357

URL : https://hal.archives-ouvertes.fr/hal-00836118

F. Willot and D. Jeulin, ELASTIC AND ELECTRICAL BEHAVIOR OF SOME RANDOMMULTISCALE HIGHLY-CONTRASTED COMPOSITES, International Journal for Multiscale Computational Engineering, vol.9, issue.3, pp.305-326, 2011.
DOI : 10.1615/IntJMultCompEng.v9.i3.40

D. Jeulin, Random Structures in Physics, Space structure and Randomness 183, pp.183-219, 2005.
DOI : 10.1007/0-387-29115-6_9

M. B. Achour, A. Chesnaud, A. Thorel, J. Hochepied, L. Lajaunie et al., Dielectric properties of hematite nanoparticles with various morphologies

N. Otsu, A Threshold Selection Method from Gray-Level Histograms, IEEE Transactions on Systems, Man, and Cybernetics, vol.9, issue.1, pp.62-66, 1979.
DOI : 10.1109/TSMC.1979.4310076

F. Willot, L. Gillibert, and D. Jeulin, Microstructure-induced hotspots in the thermal and elastic responses of granular media, International Journal of Solids and Structures, vol.50, issue.10, pp.1699-1709, 2013.
DOI : 10.1016/j.ijsolstr.2013.01.040

URL : https://hal.archives-ouvertes.fr/hal-00728155

W. H. Press, B. P. Flannery, S. A. Teukolsky, and W. T. Vetterling, Numerical Recipes Third Edition: The art of scientific computing, 2007.

G. Matheron, The Theory of Regionalized Variables and its Applications, 1971.

T. Kanit, S. Forest, I. Galliet, V. Mounoury, and D. , Determination of the size of the representative volume element for random composites: statistical and numerical approach, International Journal of Solids and Structures, vol.40, issue.13-14, pp.3647-3679, 2003.
DOI : 10.1016/S0020-7683(03)00143-4

T. Kanit, F. N-'guyen, S. Forest, D. Jeulin, M. Reed et al., Apparent and effective physical properties of heterogeneous materials: Representativity of samples of two materials from food industry, Computer Methods in Applied Mechanics and Engineering, vol.195, issue.33-36, pp.3960-3982, 2006.
DOI : 10.1016/j.cma.2005.07.022

URL : https://hal.archives-ouvertes.fr/hal-00139164

F. Willot, B. Abdallah, and Y. Pellegrini, Fourier-based schemes with modified Green operator for computing the electrical response of heterogeneous media with accurate local fields. to appear in Int ArXiv preprint, J. for Numerical Methods in Engineering, pp.1307-1015
URL : https://hal.archives-ouvertes.fr/hal-00840986