Analysis of Materials Used in the Construction of Electric Motors

Open access


The paper presents the evolution of electric motors from the point of view of the materials used. Magnetic materials and composite materials, which are used in the construction of electrical machines, are analysed. Composite materials based on magnetic materials have a large coercive field, a wider hysteresis cycle, they cannot be easily demagnetized and they absorb better the vibration energy - therefore the noise is reduced. In the design of electric machines, the aim is to obtain a higher magnetic permeability across the frequency spectrum and to reduce the losses in iron and copper. We analysed the radial electric motors with cylindrical magnets, electric motors in discoidal form with axial field and motors with magnets with transverse flux. Hard magnetic materials were presented and the advantage of their use was highlighted - they retain a significant residual magnetization which translates into a significant saturation magnetization. The synthesis of Fe nanoparticles is performed and the composite materials obtained from iron powders with organic or inorganic binders are analysed with the purpose of reducing iron losses in electric motors.

If the inline PDF is not rendering correctly, you can download the PDF file here.

  • [1] Ifrim A. Noțingher P. Materiale electrotehnice Editura Didactică și Pedagogică București 1992 pp 131-156

  • [2] BordianuA. Modelarea proprietăţilor magnetice ale materialelor compozite Universitatea Politehnica Bucureşti 2012 pp 11-16

  • [3] Bordianu la Barrière O. Bottauscio O. Chiampi M. Manzin A. A multiscaleapproach to predict classical losses in soft magnetic composites” IEEE Transactions on Magnetics vol. 48 nr. 4 2012 pp. 1537-1540

  • [4] Bespyatykh Yu. I. KazantsevaN. E. Electromagnetic Properties of Hybrid Polymer Composites Journal of Communications Technology and Electronics vol. 53 nr. 2 2008 pp. 143–154

  • [5] Legranger J. Contribution à l’étude des machines brushless à haut rendement dans les applications de moteurs-générateurs embarqués Docteur de l’Université de Technologie de Compiègn 2009

  • [6] Jarrot M.D. Contribution au développement d’outils de conception de machines synchrones à aimants permanents en vue de l’intégration convertisseur-machine Docteur de l’Université de Toulouse 2016

  • [7] BarreO. Napame B. Fractional Slot Concentrated Windings: A New Method to Manage the Mutual Inductance between Phases in Three-Phase Electrical Machines and Multi-Star Electrical Machines Machines vol. 3 2015 pp. 123-137.

  • [8] Lagarkov A.N.Rozanov K.N. High-frequency behavior of magnetic composites Journal of Magnetism and Magnetic Materials vol. 321 2009 pp. 2082–2092

  • [9] Gavrilă H. Kappel W. Codescu M.M. Materiale magnetice Editura Printech 2005 pp. 98-142

  • [10] Lateb R. Modelisation des machines asynchrones et synchrones a aimants avec prise en compte des harmoniques d’espace et de temps 2006 Institut National Polytechnique de Lorraine Nancy 2006

  • [11] Michaux R. Letellier P. Les Machines Discoïdes à Champ Axial dans les Systèmes dePropulsion Électriques REE nr.3/1997 pp 37-42

  • [12] Parvianen A.Pyhönen J.Niemelä M. Axial Flux Interior Permanent Magnet Synchronous Motor with Sinusoïdal Shaped Magnets ISEF 2001 - 10th International Symposium on Electromagnetic Fields in Electrical Engineering Cracow Poland September 20-22 2001

  • [13] Lettelier P. Electrical Propulsion Motors Electric Propulsion; The Effective Solution IMarest Conference Proceedings 5-6 October 1995. pp. 71-78.

  • [14] Mitcham A.J. Transverse Flux Motors for Electric Propulsion of Ships IEEColloquium on New Topologies for Permanent Magnet Machines London UK 1997 pp 3/1-3/6.

  • [15] Willard M. A. KuriharaL. K. CarpenterE. E. Calvin S. Harris V. G. Chemically prepared magnetic nanoparticles International materials reviews2014 pp. 125-170

  • [16] ShiY.Ding J. Liu X.Wang J. NiFe2O4 ultrafine particles prepared by coprecipitation-mechanical alloying Magnetism and Magnetic Materials 2051999 pp. 249-254

  • [17] Zhiqiang J. TangW. ZhangJ. LinH. Du.Y. Magnetic properties of isotropic SrFe12O19 fine particles prepared by mechanical alloying Magnetism and Magnetic Materials 1998 pp. 231-237

  • [18] Chen J. Nikles D.E. Preparation of acicular α-Fe nanoparticles in a lamellar liquid crystalline phase IEEE Transactions on Magnetics1996 pp. 4478–4480.

  • [19] Chen M. Tang B. Nikles D. E. Preparation of iron nanoparticles by reduction of acicular β-FeOOH particles IEEE Transactions on Magnetics1998 pp. 1141–1176.

  • [20] Krehula S. Popovic S. Music S. Synthesis of acicular α-FeOOH particles at a very high pH Materials Letter 2002 pp. 108–113.

  • [21] Chakroune N.Viau G.Ricolleau C.Fievet F. Cobalt based anisotropic particles prepared by the polyol process Materials Chemistry2003 pp. 312–318

  • [22] RamadanA. OsamaE. Saha B. Effects of sodium borohydride as a reductant on the synthesis conditions of Nano-scale Zero Valent Iron 3rd International Exchange and Innovation Conference on Engineering & Sciences Kyushu University Fukuoka Japan 19-20.10 2017 pp 39-42

  • [23] Turabik M. Simsek U.S. Effect of synthesis parameters on the particle size of the zero valent iron particles Inorganic and nano-metal chemistry2017 pp 1033–1042.

Journal information
Target audience: researchers in the fields of political and financial law
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 57 57 7
PDF Downloads 36 36 5