Effect of heat treatment on the shape of the hyperfine field induction distributions and magnetic properties of amorphous soft magnetic Fe₆₂Co₁₀Y₈B₂₀ alloy

Abstract

Abstract. Thermal treatment, undertaken at just below the crystallization temperature, has led to nanocrystallization and has had a signifi cant impact on the shape of the hyperfi ne fi eld induction distributions of Fe 62 Co 10 Y 8 B 20 alloy and on its soft magnetic properties. In the amorphous ferromagnetic alloys, it is possible to indirectly determine the effect of the structure stresses, resulting from the presence of structural defects, on the soft magnetic properties of these materials. It has been found that a change in the parameters associated with the presence of structural defects affects the shape of the hyperfi ne fi eld distributions of 57 Fe.

Structure and Soft Magnetic Properties of the Amorphous Alloys: Fe61Co10Ti3-xY6+xB20 (x = 0, 1)

“…4, have a shape which is typical of that expected for soft magnetic materials [19]. From measurement of the hysteresis loops, values of saturation magnetization and coercivity have been obtained (Table 2).…”

The Influence of Heat Treatment on the Magnetization Process (within Strong Magnetic Fields) for the Alloy: Fe61Co10Y8Cu1B20

“…however, the process of magnetization at high fields, in addition to structural defects, is significantly affected by the holstein-Primakoff process, which is associated with the suppression of thermallyexcited spin waves. The linear fit coefficient b of this process can be described by: (2) where: D spf -spin wave stiffness parameter, μb -Bohr's magneton, k -Boltzmann constant, g -gyromagnetic factor. Fig.…”

“…The continuous increase in demand for cost-effective materials with good soft magnetic properties constantly drives many industries. To meet these requirements, extensive research is carried out in the production and processing of materials, in order to achieve very specific magnetic parameters [1][2][3]. Predominantly, in order to obtain alloys with good soft magnetic properties, the aim is to prepare materials featuring an amorphous structure [4][5][6].…”

Effect of structural relaxations within the amorphous structure on the magnetic properties of amorphous tapes from FeCoB family

“…In addition these materials demonstrate almost zero magnetostriction and, depending on the chemical composition, relatively high saturation magnetization. Another group of materials which can be successfully used in electrotechnics are the nanocrystalline alloys, manufactured from amorphous alloys by a proper heat treatment [16][17][18][19][20]. However, it is not always the case, that introducing tiny crystalline grains of nanometric size into amorphous solid positively affects its magnetic properties, and in particular magnetostriction phenomenon.…”