Paper Titles

Assessment of PCM-Impregnated Zeolite as a Matrix for Latent Heat Storage
p.87

Ni-GDC Nanocomposite Material Prepared by Aqueous Based Tape Casting
p.93

Preparation and Characterization of Pb(Zr,Ti)O₃ Obtained by the Pechini Method
p.97

Hysteresis Modeling of Bonded Anisotropic Ferrite Magnets
p.102

Replacement of NdFeB by Ferrite Magnets
p.106

Phononic Band Gaps in Al₂O₃/Epoxy Composite
p.112

Characterization of Al₂O₃-Al₂TiO₂ Ceramic Composites: Effects of Sintering Parameters on the Properties
p.118

Development and Characterization of Al₂O₃-ZrO₂ Composites Using ZrO₂(Y₂O₃)-Recycled as Raw Material
p.124

Evaluation of Load Parameters and Hold Time of a Vickers Ultra-Micro Hardness Tester for Measure of Hardness and Modulus of Elasticity of Dental Composites
p.130

HomeMaterials Science ForumMaterials Science Forum Vol. 912Replacement of NdFeB by Ferrite Magnets

Replacement of NdFeB by Ferrite Magnets

Article Preview

Abstract:

The replacement of NdFeB magnets by ferrite magnets is discussed. For motors, remanence is relevant, implying in a volume three times that of NdFeB, when the relevant index of merit is remanence. However, if the relevant issue is the BH_max (maximum energy product), the volume for replacement should be ten times larger. The high resistivity of ferrites is a big advantage for motors. The temperature of operation is also relevant, because NdFeB magnets loss coercivity even with small increase of temperature. Different applications are discussed, as for instance, motors for electric cars and wind turbines. The choice of the proper volume depends on the evaluation of demagnetizing field in the condition of operation.

You might also be interested in these eBooks

The 60th Brazilian Ceramic Conference

Info:

Periodical:

Materials Science Forum (Volume 912)

Pages:

106-111

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.912.106

Citation:

Cite this paper

Online since:

January 2018

Authors:

Marcos Flavio de Campos*, Daniel Rodrigues, Jose Adilson de Castro

Keywords:

Demagnetizing Field, Magnetic Flux, Magnets, Motors, NdFeB, Strontium Ferrite

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2018 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] G. Pellegrino, Th.M. Jahns, N. Bianchi, W. L. Soong, F. Cupertino: The Rediscovery of Synchronous Reluctance and Ferrite Permanent Magnet Motors. Springer, (2016).

DOI: 10.1007/978-3-319-32202-5

[2] S.C. Chaudhary, A. Aggarwal, R. Avasthi: JIACM Vol. 9 (2008), p.133.

[3] B.S. Bhoelan, C.H. Stevering, A.T.J. van der Boog, M.A.G. van der Heyden: Clinical Toxicology Vol. 52 (2014), p.584.

DOI: 10.3109/15563650.2014.923903

[4] J. Petro: Achieving High Electric Motor Efficiency. EEMODS 2011 - Paper 060. . http: /www. novatorque. com/aboutus/white-papers/060_John_Petro_final_paper. pdf.

[5] P. Eklund. Design of a Ferrite Permanent Magnet Rotor for a Wind Power Generator. Upsalla Univeristy, 2013. http: /www. diva-portal. org/smash/get/diva2: 632021/fulltext01. pdf.

[6] N.A. Bhuiyan, A. McDonald. Assessment of the suitability of ferrite magnet excited synchronous generators for offshore wind turbines. http: /www. ewea. org/offshore2015/ conference/allposters/PO048. pdf.

[7] V.G. Kostishin, L.V. Panina, L.V. Kozhitov, A.V. Timofeev, A.K. Zuzin, A.N. Kovalev: Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques Vol. 9 (2015), p.1152.

DOI: 10.1134/s1027451015060129

[8] Z. Wang, R. Chen, W. Yin, C. Yan, X. Tang, C. Jin, D. Lee, A. Yan: IEEE Trans. Magn. Vol. 50 (2014), p.2104103.

[9] B.F.A. Silva, S.R. Janasi, D. Rodrigues, H. Takiishi, M.F. de Campos: Hybrid bonded rare-earth magnets produced with strontium ferrite and recycled NdFeB powders. In: 22nd International Workshop on Rare-Earth Permanent Magnets and their Applications, 2012, Nagasaki. Proceedings of the 22nd International Workshop on Rare-Earth Permanent Magnets and their Applications, 2012. pp.322-325.

DOI: 10.1016/b978-0-12-515450-5.50011-9

[10] M.F. de Campos, E.A. Perigo: (unpublished).

[11] H.L. Rakotoarison, J.P. Yonnet, B. Delinchant: IEEE Transactions on Magnetics Vol. 43 (2007), p.1261.

[12] Hicham Allag, Jean-Paul Yonnet. 3D Analytical Calculation of the Interactions between Per-manent Magnets. Conference Internationale REPM (Rare Earth Permanent Magnets and theirApplications), Sep 2008, Knossos, Greece. pp.183-186, (2008).

[13] D. -X. Chen, J. A. Brug, and R. B. Goldfarb. Demagnetizing factors for cylinders. IEEE Transactions on Magnetics, 27 (1991) 3601-3619.

DOI: 10.1109/20.102932

[14] M.F. de Campos, F.A. Sampaio Silva, J.A. Castro: Materials Science Forum Vol. 802 (2014), p.601.

[15] M.F. de Campos, F.A.S. da Silva, J.A. de Castro. Mater. Sci. Forum Vols. 775-776 (2014), p.431.

[16] E.A. Perigo, H. Takiishi, C.C. Motta, R.N. Faria: IEEE Trans. Magn. Vol. 45 (2009), p.4431.

[17] J.R. Riba, C.L. Torres, L. Romeral, A. Garcia: Renewable and Sustainable Energy Reviews Vol. 57 (2016), p.367.

[18] http: /hybridfordonscentrum. se/wp-content/uploads/2014/05/20140404_BMW. pdf.

[19] http: /www. greencarcongress. com/2013/08/bmw-20130812. html.

[20] http: /www. nissan-global. com/En/News/2012/_Story/121120-02-e. html.

[21] http: /www. nissan-global. com/En/Technology/Overview/e_powertrain. html.

[22] https: /www. teslamotors. com/blog/induction-versus-dc-brushless-motors.

[23] https: /www. teslamotors. com/support/model-x-specifications.

[24] http: /www. greencarcongress. com/2015/04/20150423-voltec. html.

[25] http: /sites. ieee. org/miami/files/2014/11/Hendershot-FIU-Lecture. pdf.

[26] http: /www. ford. com/cars/cmax/specifications/engine.

[27] http: /www. greencarcongress. com/2012/09/fordree-20120914. html.

[28] http: /www. hybridcars. com/why-the-2016-chevy-malibu-hybrid-gets-better-mpg-than-the-2016-chevy-volt.

[29] http: /www. offshorewind. biz/2014/09/19/report-on-wind-turbine-gearbox-and-direct-drive-systems-out-now.

[30] Yulia Alexandrova , Robert Scott Semken, Juha Pyrhönen. Applied Thermal Engineering 65 (2014) 554–563.

[31] http: /www. google. com/patents/US20140110948.

[32] http: /www. theswitch. com/wp/wp-content/uploads/2014/03/Technology_Point-_PMG_DFIG_ 06032014. pdf.

DOI: 10.18411/a-2017-023

[33] F Kools, A Morel, R Grössinger, J. M Le Breton, P Tenaud. Journal of Magnetism and Magnetic Materials. 242–245 (2002) 1270–1276.

DOI: 10.1016/s0304-8853(01)00988-x

[34] M.F. de Campos, F.A.S. da Silva, J.A. de Castro. Materials Science Forum Vol. 802 (2014) pp.596-600.

[35] J. A. de Castro, .D. Rodrigues, M. F. de Campos. From Neodymium Oxide to NdFeB Alloy: An Overview on the Reduction Methods. Proceedings of 23rd International Workshop on Rare Earth and Future Permanent Magnets and Their Applications REPM 2014, 2014, Annapolis, Maryland, USA. v. 1. pp.358-360.

[36] D. Rodrigues, J. A. de Castro, M. F. de Campos. Perspectives for Rare-Earth Magnets in Brazil. Proceedings of 23rd International Workshop on Rare Earth and Future Permanent Magnets and Their Applications REPM 2014, 2014, Annapolis, Maryland, USA. v. 1. pp.12-14.

DOI: 10.4028/www.scientific.net/msf.869.602