An analysis has been made of field experimental dependences of the magnetic susceptibility of low-concentration colloids with different values of concentration of the dispersed phase of particles (magnetite). An attempt has been made to generalize them to a single dependence in coordinates in which the ordinate is the concentration-rated susceptibility and thus to determine the magnetic susceptibility of individual particles. It has been shown that the obtained results significantly exceed maximum permissible ones. Furthermore, there is contradiction in them (in using data for one and the same colloid, but with a different concentration of the dispersed phase). This is due to the formation of chains and aggregates of particles. Thus, to determine the magnetic susceptibility of dispersed phase particles, it is necessary to use "hard" dispersed samples, in particular, two-fraction powder samples (with addition of a passive fraction), which ensures the fixation of the dispersed phase particles. Examples have been given of concentration dependences of the magnetic susceptibility of powder samples (with a dispersed phase of magnetite particles), and also of ferro-impurity particles of sugar sand and farina. These dependences having characteristic linear portions make it possible to obtain data on the magnetic susceptibility of individual ferroparticles.
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A. A. Sandulyak, D. A. Sandulyak, M. N. Polismakova, A. V. Sandulyak, D. O. Kiselev, and V. A. Ershova, Analysis of concentration dependences of magnetic susceptibilities of disperse magnetite-containing media, J. Eng. Phys. Thermophys., 90, No. 4, 845–850 (2017).
A. A. Sandulyak, M. N. Polismakova, D. O. Kiselev, D. A. Sandulyak, and A. V. Sandulyak, On limitation of the volume fraction of particles of a dispersed sample (with control of their magnetic properties), Tonkie Khim. Tekhnol., 12, No. 3, 58–64 (2017).
D. A. Sandulyak, A. A. Sandulyak, D. O. Kiselev, A. V. Sandulyak, M. N. Polismakova, M. A. Kononov, and V. A. Ershova, Determining the magnetic susceptibility of ferroparticles from the data on susceptibility of their dispersed samples, Izmer. Tekh., No. 9, 48–52 (2017).
A. A. Sandulyak, A. V. Sandulyak, V. A. Ershova, N. Pamme, B. Ngmasom, and A. Iles, Defi nition of a magnetic susceptibility of conglomerates with magnetite particles. Particularities of defi ning single particle susceptibility, J. Magn. Magn. Mater., 441, 724–734 (2017).
A. Chevalier, J.-L. Mattei, and M. Le Floc'h, Ferromagnetic resonance of isotropic heterogeneous magnetic materials: theory and experiments, J. Magn. Magn. Mater., 215–216, 66–68 (2000).
G. Q. Lin, Z. W. Li, L. Chen, Y. P. Wu, and C. K. Ong, Infl uence of demagnetizing field on the permeability of soft magnetic composites, J. Magn. Magn. Mater., 305, 291–295 (2006).
J.-L. Mattei and M. Le Floc'h, Effects of the magnetic dilution on the ferromagnetic resonance of disordered heterostructures, J. Magn. Magn. Mater., 264, 86–94 (2003).
A. Y. Zubarev, On the theory of the magnetic deformation of ferrogels, Soft Matter, 8, 3174–3179 (2012).
F. R. Szofran, W. L. Burmester, D. J. Sellmyer, and L. G. Rubin, Technique for rapid Faraday susceptibility measurements, Rev. Sci. Instrum., 46, No. 9, 1186–1187 (1975).
A.-F. Ngomsik, A. Bee, M. Draye, G. Cote, and V. Cabuil, Magnetic nano- and microparticles for metal removal and environmental applications: A review, C. R. Chim., 8, 963–970 (2005).
C. T. Yavuz, J. T. Mayo, W. W. Yu, A. Prakash, J. C. Falkner, S. Yean, L. Cong, H. J. Shipley, A. Kan, M. Tomson, D. Natelson, and V. L. Colvin, Low-fi eld magnetic separation of monodisperse Fe3O4 nanocrystals, Science, 314, 964–967 (2006).
A. Skumiel, A. Jozefczak, T. Hornowski, and M. Labowski, The infl uence of the concentration of ferroparticles in a ferrofluid on its magnetic and acoustic properties, J. Phys. D: Appl. Phys., 36, 3120–3124 (2003).
A. Chevalier and M. Le Floc'h, Dynamic permeability in soft magnetic composite materials, J. Appl. Phys., 90, 3462–3465 (2001).
S. Fukui, H. Nakajima, A. Ozone, M. Hayatsu, M. Yamaguchi, T. Sato, H. Imaizumi, S. Nishijima, and T. Watanabe, Study on open gradient magnetic separation using multiple magnetic field sources, IEEE Trans. Appl. Supercond., 12, No. 1, 959–962.
B. Weidenfeller, M. Anhalt, and W. Riechemann, Variation of magnetic properties of composites fi lled with soft magnetic FeCoV particles by particle alignment in a magnetic fi eld, J. Magn. Magn. Mater., 320, 362–365 (2008).
A. V. Sandulyak, Magnetic Filtration Cleaning of Liquids and Gases [in Russian], Khimiya, Moscow (1988); https://dlib.rsl.ru/viewer/01001440011#?page=136.
A. A. Sandulyak, A. V. Sandulyak, M. N. Polismakova, D. O. Kiselev, V. A. Ershova, and D. A. Sandulyak, The use of the spherical pole pieces for performing the Faraday balance method, Instrum. Exp. Tekh., 61, No. 1, 123–126 (2018).
A. V. Sandulyak, A. A. Sandulyak, M. N. Polismakova, D. O. Kiselev, D. A. Sandulyak, and V. A. Ershova, The working zone in the interpolar area of the Faraday balance: An approach to testing the magnetic force factor stability criterion, ICMAA 2017, Tokyo, MATEC Web Conf., 108, 01007 (2017).
A. V. Sandulyak, A. A. Sandulyak, M. N. Polismakova, D. O. Kiselev, and D. A. Sandulyak, Faraday magnetometer with pole hemisphere pieces: Identifying the zone of a stable force factor, Ross. Tekhnol. Zh., 5, No. 6, 43–54 (2017).
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Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 93, No. 1, pp. 216–221, January–February, 2020.
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Sandulyak, A.V., Sandulyak, A.A., Ershova, V.A. et al. Comments on the Selection of a Dispersed Sample to Determine the Magnetic Susceptibility of the Sample and the Dispersed Phase Particles. J Eng Phys Thermophy 93, 210–215 (2020). https://doi.org/10.1007/s10891-020-02110-x
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DOI: https://doi.org/10.1007/s10891-020-02110-x