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Thermal Stability, Mechanical Properties and Magnetic Properties of Fe-based Amorphous Ribbons with the Addition of Mo and Nb
Journal of Magnetics, Volume 18, Number 4, 31 Dec 2013, Pages 395-399
Bo-Kyeong Han (Department of Physics, Sookmyung Women's University), Hye-in Jo (Department of Physics, Sookmyung Women's University), Jin Kyu Lee (Div. of Advanced Materials Engineering, Kongju National University), Ki Buem Kim (Department of Nanotechnology and Advanced Materials Engineering, Sejong University), Haein Yim * (Department of Physics, Sookmyung Women's University)
Abstract

The metallic glass ribbons of [(FexCo1-x)0.75B0.2Si0.05]96Mo4 (x = 0, 0.3, 0.6, 0.9 at.%) and [(FexCo1-x)0.75B0.2Si0.05]96Nb4 (x = 0, 0.3, 0.6, 0.9 at.%) were obtained by melt spinning with 25-30 μm thickness. The thermal stability, mechanical properties and magnetic properties of Fe-Co-B-Si based systems were investigated. The values of thermal stability were measured using differential scanning calorimetry (DSC), including glass transition temperature (Tg), crystallization temperature (Tx) and supercooled liquid region (ΔTx=Tx–Tg). These amorphous ribbons were identified as fully amorphous, using X-ray diffraction (XRD). The mechanical properties of Febased samples were measured by nano-indentation. Magnetic properties of the amorphous ribbons were measured by a vibrating sample magnetometer (VSM). The amorphous ribbons of [(FexCo1-x)0.75B0.2Si0.05]96Mo4  (x = 0, 0.3, 0.6, 0.9 at.%) and [(FexCo1-x)0.75B0.2Si0.05]96Nb4 (x = 0, 0.3, 0.6, 0.9 at.%) exhibited soft magnetic properties with low coercive force (Hc) and high saturation magnetization (Ms).


 
Keywords: Fe-based; amorphous; ferromagnetic; soft magnetic properties
DOI: http://dx.doi.org/10.4283/JMAG.2013.18.4.395
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