Process of magnetizing bulk amorphous alloys Fe43+xCo29-xY8B20 (x=0 or 5)

International Conference on Innovative Research - ICIR EUROINVENT 2019

Nabialek, M.^1 ; Jez, B.^1 ; Jez, K.^1 ; Pietrusiewicz, P.^1 ; Bloch, K.^1 ; Gondro, J.^1 ; Abdullah, M.M.A.B.^3 ; Sandu, A.V.^2

Institute of Physics, Faculty of Production Engineering and Materials Technology, Czestochowa University of Technology, 19 Armii Krajowej Str., Czestochowa

42-200, Poland^1

Gheorghe Asachi Technical University of Iasi, Faculty of Materials Science and Engineering, 41 D. Mangeron Blvd., Iasi

70050, Romania^2

Geopolymer and Green Technology (CeGeoGTech), School of Material Engineering, Universiti Malaysia Perlis (UniMAP), Kangar, Perlis

01000, Malaysia^3

关键词: Bulk amorphous alloys;    Cobalt content;    Coercive field;    Dislocation dipole;    Ferromagnetic saturation;    High Curie temperature;    Linear defect;    Soft magnetic properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/572/1/012018/pdf
DOI  :  10.1088/1757-899X/572/1/012018

来源: IOP

【 摘 要 】

The paper presents the results of investigations of the structure and magnetic properties of Fe43+xCo29-xY8B20 bulk amorphous alloys (x = 0 or 5). Alloy samples were made using injection a liquid alloy into a copper mold. The produced materials were characterized by soft magnetic properties, i.e. a high saturation of magnetisation value (about 1.15T) and a relatively low coercive field value (below 100 A/m). Increasing the cobalt content in alloys affected the high Curie temperature (around 700K). On the basis of H. Kronmüler's theory, an analysis of the magnetisation process in area so-called the approach to ferromagnetic saturation was carried out. The analysis showed that the impact on the process of magnetizing the produced materials have linear defects in the form of pseudo-dislocation dipoles.