UNIV. NEWS. NORTH-CAUCAS. REG. TECHNICAL SCIENCES SERIES. 2022; 4: 57-64
http://dx.doi.org/10.17213/1560-3644-2022-4-57-64
THE INFLUENCE OF THE CHEMICAL COMPOSITION OF THE DIELECTRIC COATING ON THE STRUCTURE FORMATION AND PROPERTIES OF MAGNETICALLY SOFT COMPOSITE MATERIALS FROM POWDERS OF THE AIPR BRAND
Gasanov Badrudin G. – Doctor of Technical Sciences, Professor, Department «Automobiles and Transport-Technological Complexes», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, gasanov.bg@gmail.com
Nis Yakov Z. – Candidate of Technical Sciences, Associate Professor, Department «Engineering Technology, Technological Machines and Equipment», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, nis79@mail.ru
Mikhailov Vladimir V. – Candidate of Technical Sciences, Associate Professor, Department «Power Supply and Electric Drive», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, vvm53@mail.ru
Getto Elena R. – Graduate Student, Department «International Logistics Systems and Complexes», Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, Lenttochka2015@gmail.com
Abstract
The effectiveness of the use of inorganic coatings based on potassium silicate as electrical insulating materials in the production of magnetically soft composite materials (MSCM) from sprayed iron powders of the AIPR grades is shown. The influence of the chemical composition, concentration and method of introduction of dielectrics on the kinetics of coating formation on iron powders of different brands, as well as on their weight gain, average coating thickness, physical and technological characteristics and features of the structure formation of interlayer boundaries of MSCM is investigated. Elemental mapping using an energy dispersive microanalyzer showed that after pressing the images at a pressure of 600 MPa and subsequent heating in the range of 600–700 °C, the coating thickness changes and partial redistribution of components in the dielectric layer occurs. It is established that a distinctive feature of the compaction of coated iron powders is the predominance of structural deformation during pressing, since the coating.
Keywords: magnetically soft composite material, dielectric, structure formation, coating, potassium silicate, morphology of particle surface, magnetic properties
Full text: [in elibrary.ru]
References
- Koritsky Yu.V., Pasynkov V.V., Tareev B.M. Handbook of Electrotechnical Materials. Leningrad: Energoatomizdat; 1988. 728 p.
- Timofeev I.A. Technology of Production of Magnetic Materials and Materials. Moscow: Publishing House of MEI (TU); 2004. 176 p.
- Troitsky V.A., Rolik A.I., Yakovlev A.I. Magnetodielectrics in Power Electrical Engineering. Kiev: Technika;1983. 207 p.
- Jansson P. Soft Magnetic Materials for AC Applications. Paper presented at the Powder Metallurgy Group Meeting at York. England, October. 1991.
- ASM Handbook. Composites. Vol. 21. ASM Handbook Committee. 2001. 2605 p.
- Dorofeev Yu.G., Babets A.V., Mikhailov V.V., Krivoshchekov V.O. Influence of Technological Parameters on the Physical Properties of a Magnetically Soft Composite Material. Izv. vuzov. Sev.-Kavk. region. Technical sciences=Bulletin of Higher Educational Institutions. North Caucasus Region. Technical Sciences. 2015;(2):53-57 (In Russ.)
- Enescu E., Lungu P., Marinescu S., Dragoi P. The Effect of Processing Conditions on Magnetic and Electric Properties of Composite Materials Used in Nonconventional Magnetic Circuits. Journal of Optoelectronics and Advanced Materials. 2006; 8(2): 745-748.
- Gasanov B.G., Tamadaev V.G., Bogachev V.O., Makhmudova E.R. Kinetics Formation of a Dielectric Coating on Iron Powders for Obtaining Composite Magnetically Soft Materials. Izv. vuzov. Powder metallurgy and functional coatings. 2019; (4):44-54.
- Shokrollahi H., Janghorban K. Soft Magnetic Composite Materials (SMCM). Journal of Materials Processing Technology. 2007; (189):1-12.
- Bogachev V.O., Gasanov B.G., Makhmudova E.R. Influence of Dielectric Concentration on Magnetic Properties of Composite Magnetically Soft Materials. Student Scientific Spring - 2019: Materials of the Regional Scientific. tech. Conf. Students, Postgraduates and Young Scientists of Universities of the Rostov Region. 2019. Novocherkassk: SRSPU (NPI), 2019.