Analysis of the Thermal and Magnetic Properties of Amorphous Fe61Co10Zr2.5Hf2.5Me2W2B20 (Where Me = Mo, Nb, Ni Or Y) Ribbons

Abstract

The paper presents the results of structural and magnetic properties and thermal stability for a group of functional materials based on Fe61Co10Zr2.5Hf2.5Me2W2B20 (where Me = Mo, Nb, Ni or Y). Samples were obtained in the form of ribbons using melt-spinning method. The X-ray diffraction patterns of investigated samples confirmed their amorphous structure. Based on the analysis of DSC curves characteristic temperatures: glass forming temperature (Tg), crystallization temperature (Tx) and temperature range of the supercooled liquid ΔTx were determined. Small addition of transition metals elements has strong influence on magnetic and thermal parameters of studied materials. The comprehensive studies revealed that in terms of magnetic properties the Ni-addition resulted in highest reduction in coercivity and anisotropy field.

Band GAP Frequency Response in Regular Phononic Crystals

“…The second material was an Zr 55 Cu 30 Ni 5 Al 10 amorphous alloy. This type of alloys, due to their microstructure, are characterized by interesting phononic properties [27], although they are most often used in industry for their unique magnetic properties [28][29][30][31][32][33][34][35][36]. The whole structure is surrounded by air.…”

The Influence of Heat Treatment on the Phononic Multilayer Sensor

“…(12) and shown in Figure 2. (12) Amorphous alloys due to their unique magnetic properties can be used as transformer cores [30][31][32][33][34][35][36][37]. However, the structure demonstrating the lack of longrange ordering exhibits interesting properties as a component for composite phononic structures [29].…”

The Structure and Magnetic Properties of Bulk Amorphous FeCoYB Alloys

“…These defects play a similar role as point defects in crystalline materials. Due to the fact that atoms of various diameters exist in amorphous alloys, structural defects depend clearly on their chemical composition [8][9][10][11][12][13][14][15][16][17][18][19]. The technique of rapid solidification of the melt causes freezing in the amorphous structure of randomly distributed free volumes.…”