Changes in Curie temperature, physical dimensions, and magnetic anisotropy during annealing of amorphous magnetic alloys

Formation of bulk magnetic ternary Fe80P13C7 glassy alloy

“…The values of T c of the bulk amorphous specimens are comparable, but reasonably larger to that of the melt-spun glassy ribbon. Libermann et al [17] have shown that T c is sensitive to the degree of relaxation, rising when the as-prepared glass is annealed. Thus the improvement of T c may imply that the bulk amorphous specimens prepared at a lower cooling rate possess more relaxed structure than that of the melt-spun glassy ribbon.…”

Formation of ferromagnetic bulk amorphous Fe40Ni40P14B6 alloys

“…Therefore it can be concluded that the arrangement of atoms in our specimen is closer to the ideal glass state than that of the thin glassy ribbons prepared at a cooling rate of ~10 5 K s -1 . [25] have shown that T c is sensitive to the degree of relaxation, rising when the as-prepared glass is annealed. Thus the improvement of T c may imply that our specimen prepared at a low cooling rate result in more relaxed structure than that of specimen prepared by means of melt-spinning technique.…”

Effect of Industrial Raw Materials on the Glass-Forming Ability, Magnetic and Mechanical Properties of Fe-Based Bulk Metallic Glasses

“…Figure 4 shows the hysteresis M-H curves at room temperature of A and B measured by VSM, in which the influence of the demagnetizing field has been corrected. [21] In order to determine the value of J s in unit of Tesla, the density of the bulk glassy rod specimens is measured by means of Archimedes's method listed in Table I, so the saturated magnetization (J s ) of the specimens can be determined and are summarized in Table I. It shows that the J s of A and B are 1.40 T (153.5 emu/g) and 1.39 T (152.4 emu/g), respectively.…”