Structure and magnetic properties of powder soft magnetic materials

• Autorzy: Konieczny J. , Dobrzański L. A. , Przybył A. , Wysłocki J. J.
• Konferencja: 12th International Scientific Conference CAM3S'2006, 27-30th November 2006, Gliwice-Zakopane
• Języki publikacji: EN

Abstrakty

EN

Purpose: The paper presents influence of high-energy mechanical milling process, isothermal annealing and to a combination of these two technologies of cobalt base metallic glasses Co77Si11.5B11.5 on magnetic properties and their structure. Design/methodology/approach: The powder test piece obtained from the input amorphous ribbon in high-energy ball milling. The diffraction examinations and examinations of thin foils were made on the JEOL JEM 200CX transmission electron microscope. Observations of the structure of powders were made on the Opton DSM-940 scanning electron microscope. The X-ray tests were realized with the use of the XRD 7 SEIFERT-FPM diffractometer. Findings: analysis of the magnetic properties test results of the Co77Si11.5B11.5 powders obtained in the high-energy ball of milling process proved that the process causes significant decrease in the magnetic properties. The structure and magnetic properties of this material may be improved by means of a proper choice of parameters of this process as well as the final thermal treatment. Research limitations/implications: For the powders, further magnetical, structure and composition examinations are planed. Practical implications: The amorphous and nanocrystalline metal powders obtained by high-energy ball milling of metallic glasses feature an alternative to solid alloys and make it possible to obtain the ferromagnetic nanocomposites, whose shape and dimensions can be freely formed. Originality/value: The paper presents influence of parameters of the high-energy ball milling process on structure and magnetic properties of soft magnetic powder materials obtained in this technique. Results and a discussion of the influence of high energy mechanical milling process on particle size and their distribution as well as structure and magnetic properties of investigated samples is presented.

Słowa kluczowe

EN

nanomaterials; powders; magnetic properties; composites

PL

nanomateriały; proszki; właściwości magnetyczne; kompozyty

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2007
• Tom: Vol. 20, nr 1-2
• Strony: 139--142
• Opis fizyczny: Bibliogr. 16 poz., fot., rys.

Twórcy

autor

Konieczny J.

autor

Dobrzański L. A.

autor

Przybył A.

autor

Wysłocki J. J.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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