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1 Journal of Achievements in Materials and Manufacturing Engineering

1 2006

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Manufacturing technology of the composite materials: nanocrystalline material - polymer type

Ziębowicz B., Szewieczek D., Dobrzański L. A.

Journal of Achievements in Materials and Manufacturing Engineering

2006

Vol. 14, nr 1-2

37--42

Purpose: This paper presents the material and technological solution which makes it possible to obtain the nanocrystalline, ferromagnetic powder material of Fe73.5Cu1Nb3Si13.5B9 alloy after its thermal nanocrystallization with the succeeding high-energy milling. Another aspect was to develop the technology to obtain the nanocrystalline composite materials made by binding the obtained powder material with the high density low pressures polyethylene (PEHD) with the controlled ferromagnetic and mechanical properties. Design/methodology/approach: Magnetic properties of composite materials were examined on the Lake Shore Cryotronics Inc VSM vibratory magnetometer. Compression strength of composite materials was determined on Instron 1195 universal testing machine. Findings: The research carried out has made it possible to develop the general technological process that makes it possible to fabricate composite materials consisting of the nanocrystalline powders of the soft magnetic material and thermoplastic polymer with the required magnetic and mechanical properties. Examination of mechanical properties show that these materials have satisfactory compression strength. Composite materials show lower magnetic properties in comparison with magnetic powder but their geometrical form allows to extend their applications. Practical implications: The usability of composite materials nanocrystalline material – polymer type as inductive component in electronic industry depends upon further investigations. Originality/value: Soft magnetic composite materials based on Fe73.5Cu1Nb3Si13.5B9 alloy powders are essential elements in today’s electronic world. As far as we know, composites materials based on nanocrystalline material as soft magnetic materials have not been examined yet.