Structure and magnetic properties of hot pressed powder Co77Si11.5B11.5 alloy

• Autorzy: Konieczny J. , Wnuk I. , Dobrzański L.
• Języki publikacji: PL

Abstrakty

EN

Purpose: The aim of the work is to investigate the structure and magnetic properties of the cobalt based hot pressed Co77Si11.5B11.5 powder obtained in high-energy ball milling process. Design/methodology/approach: The nanocrystalline ferromagnetic powders were manufactured by highenergy ball milling (SPEX 8000 mill) of metallic glasses ribbons in as state. The hot pressing process was made on machine ''Degussa''. Observations of the structure of die stampings were made on the OPTON DSM-940 and ZEISS SUPRA 35 scanning electron microscope. Tests of magnetic properties were carried out by the use of Lake Shore's Vibrating Sample Magnetometer VSM model 7307. Findings: The analysis of the results enabled determination of the hot pressing parameters on magnetic properties and structure of obtained stampings. Research limitations/implications: For the metallic Co-based amorphous ribbons, further mechanical and structure examinations are planed. Practical implications: Structure and magnetic properties analysis of die stampings of powdered amorphous metallic ribbons is helpful to prepare this material by laboratory methods. Feature an alternative to commercial alloys and composite materials are the amorphous and nanocrystalline metal amorphous ribbons obtained by melt spinning technique and make it possible to obtain the new composite materials with best magnetic properties, which dimensions and shape can be freely formed. Originality/value: The paper presents influence of hot pressing parameters process of metallic powdered ribbons Co77Si11.5B11.5 on structure and magnetic properties of obtained die stampings.

Słowa kluczowe

EN

metallic alloys materials; nanocrystalline materials; magnetic properties; powder metallurgy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 31, nr 2
• Strony: 335--340
• Opis fizyczny: Bibliogr. 17 poz., wykr.

Twórcy

autor

Konieczny J.

autor

Wnuk I.

autor

Dobrzański L.

• 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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