بررسی ویژگی‌های مغناطیسی کامپوزیت‌های نرم مغناطیسی پایه آهن پوشش داده‌ شده با عایق سیلیکات سدیم

نویسندگان

1 گروه فیزیک، دانشگاه پیام نور، ایران

2 گروه فیزیک، دانشگاه اصفهان

3 دانشکده مواد، دانشگاه صنعتی اصفهان

چکیده

در این پژوهش پودرهای آهن (~ 45 میکرومتر) با کمینه خلوص 99 درصد با یک تا چهار درصد وزنی از ماده عایق سیلیکات سدیم (SiO2.3Na2O محلول در 40 درصد وزنی آب) و 5/0 درصد استئارات روی عایق‌بندی شدند. پودرهای عایق‌بندی شده با فشار 320 مگاپاسکال در یک قالب به شکل چنبره فشرده شدند. اثرهای درصد عایق و دمای بازپخت روی تراوایی مغناطیسی، تانژانت اتلاف هسته و تلفات کل بررسی شد. نتایج نشان می‌دهد که این ماده عایق برای عایق‌بندی پودرهای آهنی، به‌کار رفته در هسته‌های پودری آهن تا بسامدهای 1000 کیلوهرتز مناسب است. همچنین این ماده تا دمای 450 درجه سانتی‌گراد در برابر گرما پایدار است

کلیدواژه‌ها

عنوان مقاله [English]

An Investigation of the Magnetic Properties of Iron-based Soft Magnetic Composites Coated by Sodium Silicate Insulator

نویسندگان [English]

  • M. Amoohadi 1
  • M. Mozaffari 2
  • A. R. Gharaati 1
  • M. Rezazadeh 3
1 Department of Physics, Payamenoor University, Iran.
2 Department of Physics, University of Isfahan, Isfahan, Iran
3 Department of Materials Engineering, Isfahan University of Technology, Isfahan, Iran
چکیده [English]

In this study, iron powder (~45 μm) with the  minimum purity of 99% was insulated by the 1 to 4 wt% sodium silicate insulator (SiO2.3Na2O solution in 40 wt% water) and the 0.5 wt% zinc stearate. Insulated powders were pressed in a die with  a toroidal shape at the pressure of 320 MPa. The effects of insulator percentage and annealing temperature on the magnetic permeability, core loss tangent, and the total loss were investigated. The results indicated that the sodium silicate insulator could be suitable for insulating iron powders used in iron powder cores for high frequencies up to 1000 kHz. Also, this insulator could be stable against heat up to 450 °C.

کلیدواژه‌ها [English]

  • Iron powder cores
  • Insulating
  • Magnetic Permeability
  • Core Loss
  • Sodium Silicate

مراجع

1. López-Fernández, X. M., and Turowski, H. B. J., Transformers: Analysis, Design, and Measurement, p. 593, CRC Press, 2012.
2. Arnold, G., “Soft Magnetics Application Guide”, Review A, Vol. 30, pp. 31-36, 2003.
3. Snelling, E. C., and Giles, A., Ferrites for Inductors and Transformers, p. 167, Ltd London, 1983.
4. Wu, S., Sun, A., Zhai, F., Wang, J., Zhang, Q., Xu, W., Logan, P., and Volinsky, A. A., “Annealing Effects on Magnetic Properties of Silicone-coated Iron-based Soft Magnetic Composites”, Journal of Magnetism and Magnetic Materials, Vol. 324, pp. 818-822, 2012.
5. Dias, M., Mozetic, H., Barboza, J., Martins, R., Pelegrini, L., and Schaeffer, L., “Influence of Resin Type and Content on Electrical and Magnetic Properties of Soft Magnetic Composites (SMCs)”, Powder Technology, Vol. 237, pp. 213-220, 2013.
6. Kollár, P., Vojtek, V., Birčáková, Z., Füzer, J., Fáberová, M., and Bureš, R., “Steinmetz Law in Iron-phenol Formaldehyde Resin Soft Magnetic Composites”, Journal of Magnetism and Magnetic Materials, Vol. 353, pp. 65-70, 2014.
7. Yaghtin, M., Taghvaei, A. H., Hashemi, B., and Janghorban, K., “Effect of Heat Treatment on Magnetic Properties of Iron-based Soft Magnetic Composites with Al2O3 Insulation Coating Produced by Sol- gel Method”, Journal of Alloys and Compounds, Vol. 581, pp. 293-297, 2013.
8. Strečková, M., Medvecký, Ľ., Füzer, J., Kollár, P., Bureš, R., and Fáberová, M., “Design of Novel Soft Magnetic Composites Based on Fe/Resin Modified with Silica”, Materials Letters, Vol. 101, pp. 37-40, 2013.
9. Streckova, M., Bures, R., Faberova, M., Medvecky, L., Fuzer, J., and Kollar, P., “A Comparison of Soft Magnetic Composites Designed from Different Ferromagnetic Powders and Phenolic Resins”, Chinese Journal of Chemical Engineering, Vol. 23, pp. 736-743, 2015.
10. Xiao, L., Sun, Y., Ding, C., Yang, L., and Yu, L., “Annealing Effects on Magnetic Properties and Strength of Organic-silicon Epoxy Resin-coated Soft Magnetic Composites”, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 228, pp. 2049-2058, 2014.
11. Wu, S., Sun, A., Lu, Z., Cheng, C., and Gao, X., “Magnetic Properties of Iron-based Soft Magnetic Composites with SiO2 Coating Obtained by Reverse Microemulsion Method”, Journal of Magnetism and Magnetic Materials, Vol. 381, pp. 451-456, 2015.
12. Wilson, J. D., Physics Laboratory Experiments, p. 537, Mary Finch, 2010.
13. International standard, International Electrotechnical Commission, IEC 60404-6, Magnetic Materials. Part 6: Methods of Measurement of the Magnetic Properties of Magnetically Soft Metallic and Powder Materials at Frequencies in the Range 20 Hz to 200 kHz by the Use of Ring Specimens, pp. 1-59, 2003.
14. Goldman, A., Handbook of Modern Ferromagnetic Materials, p. 55, Springer Science & Business Media, 2012.
15. Shokrollahi, H., Janghorban, K., Mazaleyrat, F., Bue, M. L., Ji, V., and Tcharkhtchi, A., “Investigation of Magnetic Properties, Residual Stress and Densification in Compacted Iron Powder Specimens Coated with Polyepoxy”, Materials Chemistry and Physics, Vol. 114, pp. 588-594, 2009.
16. Cullity, B. D., and Graham, C. D., Introduction to Magnetic Materials, p. 655, John Wiley & Sons, 2011.
17. Taghvaei, A. H., Shokrollahi, H., and Janghorban, K., “Structural Studies, Magnetic Properties and Loss Separation in Iron-phenolicsilane Soft Magnetic Composites”, Materials and Design, Vol. 31, pp. 142-148, 2010.
18. Huang, M., Wu, C., Jiang, Y., and Yan, M., “Evolution of Phosphate Coatings during High-Temperature Annealing and Its Influence on the Fe and FeSiAl Soft Magnetic Composites”, Journal of Alloys and Compounds, Vol. 644, pp. 124-130, 2015.
19. Krings, A., Nategh, S., Stening, A., Grop, H., Wallmark, O., and Soulard, J., “Measurement and Modeling of Iron Losses in Electrical Machines”, 5th International Conference Magnetism and Metallurgy WMM'12, Ghent, Belgium, pp. 101-119, 2012.
20. Tumanski, S., Handbook of Magnetic Measurements, p. 382, CRC Press, 2016.
21. Swihart, M. A., “Magnetic Materials Properties and Applications Part 2: Inductors”, Science Direct, pp. 38-40, 2007.
22. Product Catalog, Magnetics Powder Core Catalog, Magnetic-Inc., pp. 3-12, 2013.
مواد پیشرفته در مهندسی
دوره 37، شماره 1
خرداد 1397
صفحه 97-104

فایل ها

هم رسانی

ارجاع به این مقاله

آمار

ارتقاء امنیت وب با وف ایرانی